A man started at his house and went to the post office, then to the pet store, and finally home again. What is the average velocity if this trip took three hours?


Explain how you arrived at your answer.

Answer:

Mass = 0.04 Kg

Explanation:

Given the following data;

Density = 800 kg/m³

Volume = 5 * 10^{-5} m³

To find the mass of the object;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the formula;

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

Making mass the subject of formula, we have;

\( Mass = density * volume \)

Substituting the values into the formula, we have;

\( Mass = 800 * 5 * 10^{-5} \)

Mass = 0.04 Kg

Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

bottom-up processing is a cognitive process that involves perceiving and understanding information based on individual sensory stimuli. examples of bottom-up processing in everyday life include recognizing objects based on their color, shape, and texture, identifying sounds based on their pitch, volume, and timbre, and perceiving tastes and textures based on individual flavors and tactile sensations.

bottom-up processing is a cognitive process that involves perceiving and understanding information based on the individual sensory stimuli. It refers to the way our brains make sense of the world by analyzing the basic features of stimuli and building up a complete perception.

In everyday life, we encounter numerous examples of bottom-up processing. For instance, when we see a new object, our brain processes its individual features such as color, shape, and texture, and then combines them to form a complete perception of the object. This allows us to recognize and understand the object without prior knowledge or expectations.

Similarly, when we hear a new sound, our brain analyzes its pitch, volume, and timbre to recognize and understand the sound. This enables us to differentiate between different sounds and identify their sources.

Bottom-up processing is also involved in other sensory experiences. When we taste a new food, our brain processes the individual flavors and textures to form a perception of the taste. Similarly, when we touch different textures, our brain analyzes the tactile sensations to understand the texture.

In summary, bottom-up processing plays a crucial role in our everyday lives by allowing us to perceive and understand the world around us based on the individual sensory stimuli we encounter.

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What is the weight of a car with the mass of 1000 kg?

Answer: it is 9800 N.

5 strategies you would use as the teacher to improve discipline in your class

There is a force exerted on your hand by the apple when the apple is in contact with your hand and you are holding it up against the force of gravity.

When you hold an apple in your hand, the apple is pressing against your hand with a force equal and opposite to the force your hand is applying on the apple. This force is due to the interaction between the atoms and molecules of your hand and the apple, which is known as the normal force.

As long as the apple remains in contact with your hand, there is a normal force acting on the apple and your hand, which prevents the apple from falling due to the force of gravity. Therefore, the force exerted on your hand by the apple is present when the apple is in contact with your hand and you are holding it up against the force of gravity.

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Answer:

mass=force/acceleration

m=10/20

m=0.5kg

Answer:

Most likely Mass

Explanation:

Could be wrong ‍♂️

Answer:

An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.

Explanation:

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An object at rest stays at rest and an object in motion stays in motion at a constant speed and direction unless acted upon by an unbalanced force. ... In the absence of any forces, no force is required to keep an object moving.

In everyday situations, it does seem that a force is needed to keep an object moving at a constant speed in a straight line because the resistive frictional force acted on every objects against their motion.

The resistance provided by surfaces in touch as they move past one another is known as friction.

According to Newton's first law of motion, Unless forced to change its condition by an outside force, every object will continue to be at rest or moving uniformly in a straight line.

But in  everyday situations, it does seem that a force is needed to keep an object, for example the shopping trolley, moving at a constant speed in a straight line because of the frictional resistive force acting opposite to the motion. That's why, a force of equal magnitude and opposite direction must be applied on the object, so that, resultant force becomes zero. It can at a constant speed in a straight line.

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Answer:The first spacecraft which did not merely fly by a jovian (or giant) planet, but actually went into orbit around it for an extended period of time was option a, Galileo. The Galileo spacecraft was launched in 1989 and orbited Jupiter for almost eight years, from 1995 to 2003.

Explanation:

The low-point station has an elevation of 110.32 feet in the given vertical curve with a g1 grade of -2% and a g2 grade of +3%.

To find the elevation of the low-point station in the given vertical curve, we start with the provided data. The g1 grade is -2%, indicating a downward slope, while the g2 grade is +3%, indicating an upward slope. The BVC Station is located at 16+50, with an elevation of 112.00 feet. The length of the curve is given as 400.00 feet. To calculate the elevation at the low-point station, we consider the change in grade from g1 to g2 along the curve. The low-point station represents the transition point where the slope changes from descending to ascending. Using vertical curve calculations, we determine the elevation at the low-point station to be 110.32 feet. This means that the road reaches its lowest point at this station before it starts to ascend again.

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Answer:

It is going through a phase change when it is flat.

Explanation:

During the horizontal line segments, there is no change in temperature, so kinetic energy remains constant. However, all the energy that is absorbed or released is related to changes in potential energy.

Answer:

Hi! I'm a few days late since I just saw this question just now, but I'll answer anyway.

Answer:

When an unbalanced force acts on a moving object, the velocity of the object will change. Change in velocity means a change in speed, direction, or both. For example, if you kick a soccer ball and it moves from one place to another, it means that unbalanced forces are acting upon it. The ball moves from one place to another after kicking it so the position changed.

To calculate electrical potential difference across the battery, the resistance of the circuit is required. Therefore the given question is incomplete.

The ability of the material to restrict the flow of current is referred to as resistance. It is symbolized by the letter 'R'. The ohm, frequently written as a word and sometimes represented by the Greek letter omega, is the unit of resistance that is commonly used.

As electrons pass from a conductor, such a metal wire, an electric current occurs. The atoms in the metal may clash with the travelling electrons. Resistance is created as a result, making it more challenging is for current to flow.

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Answer:

The truck must travel at a speed of 98.6677 km/hr to stay beneath the airplane

Explanation:

The given parameters are;

The velocity of the airplane, v = 105 km/hr

The direction of the airplane, θ = 25 degrees to the ground = 25°

Therefore, we have that the horizontal component of the velocity of the plane, vₓ is given as follows;

vₓ = v × cos(θ) = 105 km/hr × cos(25) ≈ 98.6677 km/hr

The vertical component of the velocity of the plane, \(v_y\), is given as follows;

\(v_y\) = v × sin(θ)  = 105 km/hr × sin(25) ≈ 44.37 km/hr

The truck only has to travel at a speed equal to the horizontal velocity of the airplane to stay beneath the airplane

Therefore, the travelling speed the truck must be vₓ which is 98.6677 km/hr to stay beneath the airplane.

According to the Newton's second law,

where F is the force on the object, m is the mass of the obect and a is the acceleration of the object.

Substituting the known values,

Thus, the mass of the object is,

Hence, the mass of the object is 6 kg.

The pressure at the bottom of the trench, assuming a constant density of seawater, can be calculated using the hydrostatic pressure formula. The pressure is directly proportional to the depth and the density of the fluid. At a depth of 11.0 km, the pressure due to the ocean is immense.

The hydrostatic pressure formula is given by:

\(\[ P = \rho \cdot g \cdot h \]\)

where P is the pressure, \(\(\rho\)\) is the density of the fluid, g is the acceleration due to gravity, and h is the depth. In this case, the depth is 11.0 km.

Assuming a typical density of seawater of 1030 kg/m³ and an acceleration due to gravity of 9.8 m/s², we can substitute the values into the formula:

\(P=1030kg/m^3\times 9.8m/s^2\times11.0\times10^3m\)

Calculating this expression gives us:

\(\[ P = 1.17 \times 10^8 \, \text{Pa} \]\)

Therefore, the pressure due to the ocean at the bottom of the trench is approximately \(\(1.17 \times 10^8 \, \text{Pa}\)\).

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Answer:We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the sun. The Earth's axis is tilted at an angle of 23.5 degrees. This means that the Earth is always "pointing" to one side as it goes around the Sun.

Explanation:

got this from the internet

Answer:

B the second one is the answer

The speed that a fly with a mass of 0.65 g would need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s is 2133.97 m/s.

Given:mass of fly, m1 = 0.65 g = 0.00065 kg

speed of automobile, v2 = 11 m/smass of automobile, m2 = 1250 kg

To find: Speed of fly with kinetic energy same as automobile

Formula:Kinetic energy = 0.5 * mass * speed²

Solution:Let v1 be the speed of the fly

Kinetic energy of automobile = Kinetic energy of fly0.5 * m2 * v2² = 0.5 * m1 * v1²

Substituting given values0.5 * 1250 * 11² = 0.5 * 0.00065 * v1²v1² = (0.5 * 1250 * 11²)/0.00065v1² = 4545454.55v1 = √(4545454.55)v1 = 2133.97 m/s

Therefore, the speed that a fly with a mass of 0.65 g would need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s is 2133.97 m/s.

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The kinetic energy of the spring is obtained as 12 J. Option C

We know that the kinetic energy is the energy that is required to stretch the spring. We can use the graph that has been shown to show the force constant of the spring.

We can find the force constant as the slope of the graph as follows;

K = \(y_{2} - y_{1} /x_{2} - x_{1}\)

K = 60 - 0/0.3 - 0.2

K = 60/0.1

K = 600 N/m

We then have;

W = KE = 1/2 Kx^2

Thus;

KE = 0.5 * 600 * (20 * 10^-2)^2

KE = 12 J

It would have a kinetic energy of 12 J.

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The atom is the smallest part of a substance that can take part in a chemical reaction.

The atom is the smallest part of a substance that can take part in a chemical reaction. Let us now address the atoms individually.

Oxygen;

Mass number = 16

Atomic number = 8

Number of protons = 8

Number of electrons - 13

Number of neutrons = 16 -8 = 8

Helium

Mass number = 4

Atomic number = 2

Number of protons = 2

Number of electrons - 13

Number of neutrons = 4 -2 = 2

Carbon

Mass number = 12

Atomic number = 6

Number of protons = 6

Number of electrons - 6

Number of neutrons = 12 - 6 = 6

Aluminum

Mass number = 27

Atomic number = 13

Number of protons = 13

Number of electrons - 13

Number of neutrons =27 - 13 = 14

Calcium

Mass number = 40

Atomic number = 20

Number of protons = 20

Number of electrons - 20

Number of neutrons =40 - 20=20

Sodium

Mass number = 23

Atomic number = 11

Number of protons = 11

Number of electrons - 11

Number of neutrons =23 - 11 = 12

Potassium

Mass number = 39

Atomic number = 19

Number of protons = 19

Number of electrons - 19

Number of neutrons =39 - 19 = 10

Nitrogen

Mass number = 14

Atomic number = 7

Number of protons = 17

Number of electrons - 7

Number of neutrons =14 - 7 = 7

Silicon

Mass number = 28

Atomic number = 14

Number of protons = 14

Number of electrons - 14

Number of neutrons =28 - 14 = 14

Iron

Mass number = 56

Atomic number = 26

Number of protons = 26

Number of electrons - 26

Number of neutrons =56 - 26 = 30

Hydrogen

Mass number = 2

Atomic number = 1

Number of protons = 1

Number of electrons - 1

Number of neutrons =2 - 1 = 1

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Answer:

I Choose C, Because Genetically engineered bacteria and other microorganisms are currently used to produce human insulin, human growth hormone, a protein used in blood clotting, and other pharmaceuticals and the number of such compounds could increase in the future.

So Basically There Saying It Can Be Used To Remove Certain Diseases.

The battery internal resistance refers to the resistance within a battery that limits the flow of current. To measure the battery internal resistance, a standard test procedure can be followed. Here is a step-by-step explanation of the procedure:

Disconnect the battery from any connected devices or circuits to ensure accurate measurements.
Set up a multimeter to measure resistance. Make sure the multimeter is in the appropriate range for the expected resistance values of the battery.

Measure the voltage across the battery terminals without any load connected. This voltage measurement will be denoted as V_oc (open circuit voltage). Connect a known load resistor to the battery terminals. The value of the load resistor should be such that it draws a significant current, but not too high to damage the battery.
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