A child pushes a toy truck 2.5 m across a floor with a constant force of 22 N. How much work does the child do on the toy truck?
22/2.5= 8.8 J
22 x 2.5= 55 W
22/2.5= 8.8 W
22 x 2.5= 55 J

I drew the first picture myself, and the second one is the image

A bar magnet travels from point a to point b by being drawn away from the magnetic field, which is to the left at the left end. (Selection A).

In a nutshell, the solenoid, which is located between the ignition and the engine, is what starts the automobile. When you turn the key, the gadget receives both a sizable electric current from the car's battery and a smaller electric current from the ignition.

A solenoid valve is an electro-mechanical valve that is frequently used to regulate the flow of liquid or gas. There are many different kinds of solenoid valves, but the two most common kinds are direct acting and pilot controlled.

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Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question

mass = 24 g

density = 1.2 g/mL

We have

\(volume = \frac{24}{1.2} \\ \)

We have the final answer as

Hope this helps you

The maximum speed he can reach with an acceleration of 5 g before blacking out is 264.6 m/s. acceleration of the jet fighter pilot, a distance, and a time, we can calculate his maximum speed using the kinematic equations of motion.

Using the kinematic equations of motion, we can calculate the maximum speed of the jet fighter pilot before blacking out:υ = v_0 + at where υ is the final velocity v_0 is the initial velocity,  a is the acceleration, t is the time it takes to accelerate.

The distance travelled during this time can be calculated using the equation,s = v_0t + (1/2)at^2 where s is the distance travelled.

Plugging in the values givesυ = 5g * 9.8 m/s^2 * 5.4 s = 264.6 m/s.

To convert from Mach 3 to meters per second, we use Mach 3 = 3 * 331 m/s = 993 m/s.

Therefore, the maximum speed he can reach with an acceleration of 5 g before blacking out is 264.6 m/s.

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Answer:

Egg Drop Challenge height

The containers will be dropped from an initial height of about 11.5 ft. The second and final drop will be from the second floor (about 19.5 ft).

Explanation:

Answer:

traping

Explanation:

Answer:

B. Trapping

Explanation:

a) At the point the block is released, the initial velocity is zero, so the initial kinetic energy of the block is zero. The block is at a height of 55 meters from the ground, so its gravitational potential energy can be calculated using the formula;

PE = mghwhere m = 6 kg (mass of the block), g = 9.8 m/s² (acceleration due to gravity), and h = 55 m (height of the block from the ground)PE = mgh = (6 kg) (9.8 m/s²) (55 m) = 3,234 JTherefore, the gravitational potential energy of the block when it was released was 3,234 Joules (J).b) The kinetic energy of the block at the point of impact can be calculated using the formula; KE = ½mv²where m = 6 kg (mass of the block), and v = 30 m/s (velocity of the block)KE = ½mv² = ½ (6 kg) (30 m/s)² = 2,700 J.

Therefore, the kinetic energy of the block at the point of impact was 2,700 Joules (J).c) The law of conservation of energy states that energy cannot be created or destroyed, it can only be transformed from one form to another. At the point of impact, the block loses its kinetic energy. The mechanical energy "lost" by the block can be calculated as the difference between the initial potential energy and the final kinetic energy.

ΔE = PE - KE= (3,234 J) - (2,700 J) = 534 J

When the block hit the ground, it created a loud sound, generated heat, and also caused the ground to shake. Therefore, the mechanical energy that was "lost" by the block was transformed into sound energy, heat energy, and seismic energy.

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Answer:

\(a)uf = 205 + 35 - 11 \\ = 240 - 11 \\ = 229j \\ b)q(heat \: transferd) = 229 - 205 - 11 \\ = 24 - 11 \\ = 13j \\ thank \: you\)

The heat transferred is

a) u f = 205+35-11

      =240-11

      = 229 j

b) q (heat transferred ) = 223-205-11

   = 24-11

   = 13 j

While a thermodynamic gadget passes thru an exchange in the state, a succession of states exceeded could be termed as a course of the device or direction of an alternate country. If the route of change of kingdom is completely distinctive, route of alternate of the nation may be termed as thermodynamic manner.

The technique is described via a direction, which is the non-stop collection of consecutive states via which the machine passes, consisting of the initial nation, the intermediate states, and the very last state. The process has a course along the course.

An asset whose price would not depend upon the course taken to attain that unique price is thought to as kingdom capabilities or point features. In contrast, those capabilities which do depend upon the direction from points are referred to as course features.

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a)

b) Clay is hydrated through a process called adsorption.

c) Clay swelling is related to Cation Exchange Capacity because as cations are exchanged and adsorbed onto clay surfaces, they can cause the clay mineral structure to expand.

Adsorption, a method, is used to hydrate clay. When clay and water interact, the water molecules cling to the clay's surface and surround the clay particles in a thin layer.

Due to the clay minerals' capacity to grab and hold water molecules via electrostatic forces and surface tension, the hydration process takes place. The type of clay mineral, a given surface area, and environmental conditions are only a few examples of the variables that affect how much clay is hydrated.

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The conservation of momentum and impulse are  the physics principle of the measure the force of the heart's contraction    

The momentum is defined as the product of the mass of the body by its speed. If we make the system isolated, the moment or quantity of movement must be conserved since there are external forces.

                P = mv

               Δp = p_f - p₀

Where p is the momentum, m and v the mass and velocity of the body

In this case we consider the body as an isolated system and if it is immobile, zero velocity, the initial momentum is zero

               p₀ = 0

When the heart pumps the room it goes out in one direction and the body recoils in the opposite direction, so the final momentum is

              p_f = m v₁ - (M-m) v₂

Where m is the amount of blood pumped, (M-m) the remaining mass of the body, v₁ and v₂ the velocity of the blood and the body

If the body is isolated, the momentum will be preserved

               p_f = p₀

               m v₁ - (M-m) v₂ = 0

               v₁ = \(\frac{M-m}{m} \ v_2\)

The To measure the force of the contraction of the heart we use that the impulse is equal to the variation of the momentum

                 I_ {avg} = F t = ΔP

                  F = \(\frac{\Delta p}{t}\)

Where t is the time and is measured with a stopwatch with the pulsations of each patient.

                  F = \(\frac{m \ v_1 - (M-m) \ v_2 }{t}\)

The construction of a system for the measurement must consist of spring or some means of oscillation and use the movement to measure the recoil speed of the patient which is small.

In conclusion, we use the conservation of momentum and impulse are the  physics principle of the measure the force of the heart's contraction    .

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The Redfield ratio is the ratio of various chemical elements present in the average phytoplankton biomass. This defines the stoichiometry of photosynthesis and remineralization reactions.

The Redfield ratio is 106:16:1 across the ocean. Many models predict that a warmer ocean will hold less carbon because phytoplankton will become smaller as the ocean warms and bring less carbon to the seafloor as they die. Carbon nitrogen and phosphorus are the most important of these nutrients and CNP.

A ratio between 100:5:1 and 100:10:1 should be maintained to ensure maximum microbial activity in aerobic wastewater treatment. Many trace elements or micronutrients are also required. This is because a specific form of nitrogen found in the air nitrogen gas cannot be assimilated by most living organisms or require nitrogen in solid form.

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Answer:

\(\dfrac{-1}{2}\)

Explanation:

We need to divide the second number by the first number and the numbers are 3/4,-3/8​.

First number = 3/4

Second number = -3/8

Dividing the second number by the first number.

So,

\(\dfrac{\dfrac{-3}{8}}{\dfrac{3}{4}}\)

We know that,

\(\dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times \dfrac{d}{c}\)

So,

\(\dfrac{\dfrac{-3}{8}}{\dfrac{3}{4}}=\dfrac{-3}{8}\times \dfrac{4}{3}\\\\=\dfrac{-1}{2}\)

So, the answer is (-1/2)

Answer:

1. 59 Ω

2. 3 Ω

3. 0.625 kΩ

Explanation:

1. The total resistance in a series circuit is equal to the sum of the resistance.

\(R_T=R_1+R_2+R_3...\\R_T=20+19+20\\R_T=59\)

Therefore, the total resistance in the first circuit is 59 Ω.

2. The total resistance in a parallel circuit is equal to the sum of the reciprocals of the resistance.

\(\frac{1}{R_T} = \frac{1}{R_1} +\frac{1}{R_2} +\frac{1}{R_3} ...\\\frac{1}{R_T} = \frac{1}{6.0} +\frac{1}{12} +\frac{1}{36}+\frac{1}{18} \\\frac{1}{R_T} = \frac{1}{3} \\R_T=3\)

Therefore, the total resistance in the second circuit is 3 Ω.

3. This is another parallel circuit, so we use the same equation from above:

\(\frac{1}{R_T} = \frac{1}{R_1} +\frac{1}{R_2} +\frac{1}{R_3} ...\\\frac{1}{R_T} = \frac{1}{10} +\frac{1}{2} +\frac{1}{1} ...\\\frac{1}{R_T} =1.6\\R_T=\frac{1}{1.6}\)

Therefore, the total resistance in the third circuit is \(\frac{1}{1.6}\) kΩ, or 0.625 kΩ.

I hope this helps!

The graph showing F as a function of y shows that D, the cube will oscillate between y=0.05 m and y=0.09 m.

From the graph, the force exerted on the cube increases linearly as the cube is displaced upwards from its equilibrium position at y = 0.07 m. When the cube is displaced to y = 0.05 m, the net force is upward and greater than the weight of the cube. This causes the cube to accelerate upward.

As the cube moves upward, the force exerted by the water decreases until it is equal to the weight of the cube at y = 0.07 m. At this point, the net force on the cube is zero and the cube momentarily comes to rest. The cube then continues to move upward, but the force exerted by the water is now downward, causing the cube to slow down and eventually come to a stop at y = 0.09 m.

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The complete question is:

A 4.0 kg cube is placed in a container of water. A student observes that the cube floats while performing simple harmonic motion. The net force exerted on the cube F represents the sum of the force due to gravity and the force exerted on the cube by the water. A force probe is used to measure F as a function of the cube's distance y from the bottom of the container. The graph shows F as a function of y, where the positive direction is upward. Which of the following statements is correct about the motion of the cube if it is released from rest at a vertical position of y = 0.05 m?

A) The cube will have a constant upward acceleration of 2.0 m/s².

B) The cube will have a constant downward acceleration of 2.0 m/s²

C) The cube will travel upward with a changing. c acceleration until it comes to rest at a position of y= 0.07 m.

C) The cube will oscillate between y = 0.05 m and y = 0.09 m.

Answer:

Explanation:

Mass = 50kg +7kg +4kg =61 kg

Velocity = 3m/s

Momentum = mass × velocity

\(p =61\times 3\\\\p =183MLT^-^1\)

Answer:

Mass= 61 kg. Success to The homework.

Answer:

La energía que la bombilla consume durante el mes de noviembre es 0,3 kWh o 1.080.000 Joules.

Explanation:

La energía eléctrica consumida por un aparato eléctrico es el producto de la potencia eléctrica (P) y la duración del tiempo utilizado (t)

E = P*t

En este caso, la potencia eléctrica tiene un valor de 100 W. Siendo 1 W equivalente a 0,001 kW, entonces 100 W es igual a 0,1 kW. Por lo que la energía puede ser calculada como:

E= 0,1 kW*3 horas

E= 0,3 kWh

El kWh es una unidad de medida que se emplea para contabilizar el consumo eléctrico que se ha realizado durante un periodo de tiempo. El kWh mide el consumo de energía en kilovatios hora o kilowatts hora.

1 kW equivale a 3.600.000 Joules. Entonces el consumo de energía igual a 0,3 kWh equivale a 1.080.000 Joules

La energía que la bombilla consume durante el mes de noviembre es 0,3 kWh o 1.080.000 Joules.

Answer:

a=-5.3m/s2

Explanation:

F=-20N

m=3.75kg

a=?

F=am /:m

a=F/m

a=-20N/3.75kg

a=-5.3m/s2

Answer:

I think the answer is D.)

Explanation:

If it means something needs to melt into liquid i would have gone with B.) or C.) but since it doesn't specifiy. I thought D.) since all you have to do is heat it and it melts or boils.

Out of the given options, only "Blown car tire" would be considered an emergency fund expense.

An emergency fund expense is an unforeseen and urgent cost that requires immediate attention and cannot be easily covered by one's regular income or savings.

Examples of emergency fund expenses may include unexpected car repairs, medical bills, or sudden job loss. The purpose of an emergency fund is to provide a financial cushion that can help cover these types of expenses, allowing individuals to manage unexpected financial shocks without having to resort to high-interest debt or deplete their long-term savings.

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20855 turns of wire are on the coil.

A substance or thing that creates a magnetic field is called a magnet. The most noteworthy characteristic of a magnet—a force that pulls on other ferromagnetic elements, such as iron, steel, nickel, cobalt, etc.—as well as the ability to attract or repel other magnets—is caused by this invisible magnetic field. An object made of a substance that has been magnetized and produces its own persistent magnetic field is referred to as a permanent magnet. A common example is a refrigerator magnet used to keep notes on the door of the refrigerator. Ferromagnetic materials are those that can be magnetized and are also those that are powerfully drawn to a magnet (or ferrimagnetic).

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Masses and velocities of cart A and cart B are given, then after the collision the center of mass of the two cart system has a speed of 1 m/s.

Strength or force gained by motion or by a series of events is called momentum.

As, Initial momentum = final momentum

So, pA + pB =  p (A + B)

then, mA · vA + mB · vB = (mA + mB) · v

pA and pB are initial momentum of carts A and B respectively.

p (A +B) is momentum of the two cart system after the collision.

mA and mB are masses of carts A and B respectively.

vA and vB are initial velocity of carts A and B.

v is velocity of the two cart system.

Given; mA = 0.2 kg

mB = 0.4 kg

vA = 3 m/s

vB = 0 m/s

Solving the equation for v:

As, mA · vA + mB · vB = (mA + mB) · v

0.2 * 3  + 0.4 * 0 = (0.2 kg + 0.4 kg) * v

0.6 = 0.6 * v

v = 1 m/s

After collision, center of mass of the two cart system has a speed of 1 m/s.

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Answer:

Assess what information you are given. Use this method if you know:

the total distance covered by one person or vehicle; and

the total time it took that person or vehicle to cover the distance.

Explanation:

Hope this helps! I might be wrong, so tell me if I am

Answer:

Average speed can be calculated by dividing the total distance the object travels by the total amount of time it takes to travel that distance.

Explanation:

This is as much as I can help you, i don't know much else on how to do that ;w; sorry

48 m/s in terms of km/h is 720.8 km/h. In terms of m/min is 2880 m/min, in terms of km/s is 0.048 km/s and in terms of km/min is 2.88 km/min.

To solve this question, we need to understand some terms. The unit of velocity is measured in m/s. It can be expressed in different units of velocity.

1 km (kilometer) = 1000 meter

1 h (hour) = 3600 seconds

1 minutes = 60 seconds

To convert m/s into km/h,

48 m/s * 3600/1000 =  172.8 km/h

To convert m/s into m/min,

48 m/s * 60 = 2880 m/min

To convert m/s into km/s,

48 m/s ÷ 1000 = 0.048 km/s

To convert m/s into km/minutes,

48 m/s * 60 / 1000 = 2.88 km/min

Therefore, the 48 m/s expressed is 172.8 km/h, 2880 m/min, 0.048 km/s and 2.88 km/min.

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48 m/s is equivalent to  172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

To express 48 m/s in different units of velocity:

km/h (kilometers per hour):

To convert m/s to km/h, we can use the conversion factor of 3.6 since 1 m/s is equal to 3.6 km/h.

48 m/s * (3.6 km/h / 1 m/s) = 172.8 km/h

Therefore, 48 m/s is equivalent to 172.8 km/h.

m/min (meters per minute):

To convert m/s to m/min, we can use the conversion factor of 60 since there are 60 seconds in a minute.

48 m/s * (60 m/min / 1 s) = 2880 m/min

Therefore, 48 m/s is equivalent to 2880 m/min.

km/s (kilometers per second):

Since 1 kilometer is equal to 1000 meters, to convert m/s to km/s, we divide the value by 1000.

48 m/s / 1000 = 0.048 km/s

Therefore, 48 m/s is equivalent to 0.048 km/s.

km/minute (kilometers per minute):

To convert m/s to km/minute, we first need to convert m/s to km/s (as calculated in the previous step) and then multiply by 60 to convert seconds to minutes.

0.048 km/s * 60 = 2.88 km/minute

So, 48 m/s is equivalent to 2.88 km/minute.

Hence, 48 m/s is equivalent to approximately 172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

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Answer:

Don't Smoke, Check for mold, Exercise, Hydration, have a healthy diet!

Explanation

If you do these five things then your respiratory system will be in good shape. There are plenty of other things that you can do but these five will suffice for your question. Good luck!

The three characteristics that all the plants most likely share are: have xylem and phloem; lack pollen. Option D.

In seed plants, xylem and phloem are essential vascular tissues responsible for the transport of water, nutrients, and sugars throughout the plant. Xylem transports water and minerals from the roots to the rest of the plant, while phloem carries sugars and other organic compounds from photosynthetic regions to other parts of the plant.

The absence of pollen indicates that these plants do not reproduce through the production and dispersal of pollen grains. Instead, they likely reproduce through other means, such as the production of seeds.

This combination of having xylem and phloem while lacking pollen suggests that the plants in question are likely gymnosperms. Gymnosperms are a group of seed plants that include conifers, cycads, ginkgoes, and others. These plants typically produce seeds that are not enclosed within a fruit, and they rely on other methods such as wind or insects for pollination.

It is important to note that this conclusion is based on the provided information and is subject to change depending on further details about the specific characteristics of the gathered plants. SO Option D is correct.

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The distance covered by the boy is approximately (4/3) ˣ π ˣ 7 meters, and the displacement is 7 meters.

To calculate the distance and displacement when a boy makes 2/3 revolutions in a circular path of radius 7 m, we need to consider the definitions of distance and displacement in circular motion.

Distance is the total length traveled along the circular path, while displacement is the straight-line distance from the initial position to the final position.

1 revolution is equal to the circumference of the circular path, which is given by:

Therefore, the distance covered by the boy is approximately (4/3) ˣ π ˣ 7 meters, and the displacement is 7 meters.

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Explanation:

use the explanation above

Hope it's clear

Non-inertial frame is a reference frame in which Newton's laws of motion do not hold.

The projectile is shot horizontally from height

h = 0.860 m

above an elevator floor with velocity

v = 0.201 m/s.

The ball lands at distance d from the base of the device directly below the ejection point.

The vertical acceleration of the elevator can be controlled.

If d is (a) 14.0 cm, (b) 20.0 cm, and (c) 7.50 cm, what is the elevator's acceleration magnitude a?

Case (a)Distance d = 14 cm = 0.14 m.

The equation for horizontal distance traveled is given by:

d = vt

where d is the distance, v is the initial horizontal velocity, and t is the time.

The horizontal velocity of the projectile remains constant throughout the motion, as there is no horizontal acceleration.

a = 0.14 m / 0.201 m/s = 0.697 m/s² = 7.1g (where g is the acceleration due to gravity)Case (b)

Distance d = 20 cm = 0.20 m.

the elevator's acceleration magnitude a for (a) 14.0 cm, (b) 20.0 cm, and (c) 7.50 cm is 0.697 m/s² = 7.1g, 0.993 m/s² = 10.1g, and 0.373 m/s² = 3.8g respectively,

where g is the acceleration due to gravity.

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Answer:

Too what i know its because of the air

Explanation:

The steel rod is more dense and doesnt have air whil'st the oil tanker is less dense with lots of air