BRAINLY HELP. If an anvil is dropped by Bugs Bunny, at what point will it have the most Kinetic Energy?'
a - Just before it lands
b - Right at the moment it is let go
c - Kinetic energy doesn't exist, its made up
d - Half Way Down

No , frequency of a wave is not distance between waves, it is called wavelength.

Frequency is the number of waves that pass a particular point in a given period of time. It is typically measured in Hertz (Hz), which is the number of waves per second. Wavelength, on the other hand, is the distance between two consecutive crests or troughs of a wave. It is typically measured in meters (m). So frequency and wavelength are related, but they are not the same thing. Frequency is a measure of the number of waves, while wavelength is a measure of the distance between waves.

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Explanation:

Kinetic energy of an object is given by :

\(E=\dfrac{1}{2}mv^2\)

Where

m is mass and v is velocity of the object

A. Mass, m = 300 kg.

Speed, v = 60 km/h = 16.67 m/s

\(E=\dfrac{1}{2}\times 300\times 16.67^2\\\\=41683.33\ J\)

B. Mass, m = 1100 kg.

Speed, v = 60 km/h = 16.67 m/s

\(E=\dfrac{1}{2}\times 1100\times 16.67^2\\\\=152838.89\ J\)

C. Mass, m = 900 kg.

Speed, v = 80 km/h = 22.22 m/s

\(E=\dfrac{1}{2}\times 900\times 22.22^2\\\\=222177.78\ J\)

D. Mass, m = 2000 kg.

Speed, v = 50 km/h = 13.88 m/s

\(E=\dfrac{1}{2}\times 2000\times 13.88^2\\\\=192654.4\ J\)

The kinetic energy in case C is maximum.

Answer:

 K_f = 20000 J

Explanation:

This is a conceptual exercise, where the relationship between work and kinetic energy should be used

            W = ΔK

             W = K_f - K₀

In this case, as the car is damaged, its initial velocity is zero and therefore its initial kinetic energy is also zero.

             W = K_f

consequently the work is completely transformed into kinetic energy of the car

             K_f = 20000 J

Answer:

Air and Vacuum

Explanation:

Radiant heat can easily pass through air and vacuum. Because radiant energy is a type of heat radiation.

Answer:

b and you mom is cute so it's nice I'm here for points

Statement 1 and 3 are correct.

According to Ohm's law,

P = V I

V = I R

where,

P = Power

V = Voltage

I = Current

R =Resistance

Given that,

P = 250 * \(10^{-3}\) W

If R = 10 Ω

P = \(I^{2}\) R

\(I^{2}\) = P / R

\(I^{2}\) = 250 * \(10^{-3}\) / 10

I = 15.81 * \(10^{-2}\) A

V = 15.81 * \(10^{-2}\) * 10

V = 1.581 V < 50 V

So statement 1 is correct

If the same method is applied for 100 Ω, the voltage would be 50 V which is greater than 5 V. So statement 2 is wrong

V = P / I

V = P R / V

V = \(\sqrt{0.25*R}\)

According to this, statement 3 is correct and statement 4 is wrong.

Ohm's law states that, when two points have a potential difference, the current passing through the resistance is directly proportional to the voltage across the two points.

The given question is incomplete. The complete question is :

The power rating of the resistors in our kits are 1/4 watt. That means the power dissipated by any resistor of resistance R should not exceed 250 mW. Using the power formula P = Vxl and Ohm's law, which of the following is true? V is the voltage across the resistor and I is the current through it. (check all that apply)

Therefore, the statements 1 and 3 are true.

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Answer:

letter D

Explanation:

sana po makatulong po sa inyo

Answer:

Q=mc∆tita.

490J= m× 0.5J/Kg/C × (18-0°C)

490J= m × 9J/kg

490J

9J/Kg = m.

m= 54.4Kg

The simplest ratio of squares to total shapes if we have 8 squares and 10 circles is 4:9.

What is Ratio?

A ratio is said to be is the simplest form or in the lowest term if two quantities of a ratio (i.e., antecedent and consequent) have no common factor (i.e. antecedent and consequent are co-prime) other than 1 (or their HCF is 1). The ratio must always be expressed in its simplest form or in its lowest terms.

Now,

There are 8 squares and 10 circles.

We have, total shapes = 8 + 10 = 18

Hence, The simplest ratio of squares to total shapes = 8 : 18 = 4 : 9

So, The simplest ratio of squares to total shapes is 4 : 9

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Answer:

1: Because matter has many different forms.

2: The materials that are shown can be organized into 3 different forms; solid, liquid, and gas.

3: The image of the liquids is most likely a material that cannot be found in nature. Liquids have many useful properties, but it depends on the liquid. Bleach is a liquid that has is very useful for sterilizing. Water is useful because without it, life on earth would not exist. And there are many more liquids, but I am going to cut it short here because there too many to put down.

Explanation:

Pls mark Brainliest with the crown.

Answer:

0.2

Explanation:

3/15

To calculate the magnitude of the voltage drop vab using Ohm's law, we need to know the resistance and current in the circuit.

Ohm's law states that voltage (V) is equal to current (I) multiplied by resistance (R): V = I * R . In this circuit, when both switch s1 and s2 are closed, the current will flow from point a to point b through resistors R1 and R2 in series. To find the current in the circuit, we can use Kirchhoff's voltage law (KVL), which states that the sum of all voltage drops in a closed loop is equal to the voltage supplied to the loop.

The magnitude of the voltage drop vab when both switch s1 and s2 are closed is equal to 9V multiplied by the resistance of resistor R2, divided by the sum of the resistances of R1 and R2. However, the question seems to be incomplete, as we need more information about the circuit, such as the resistance and current values.

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Answer:

projectiles is an object

Explanation:

projectiles moves freely under the influence of gravity and air resistance

Maybe sea or onshore breeze

It develops due to the difference of air pressure greater by the different temperature of the water and land

Answer: The sound will increase in pitch.

Explanation:

According to the Doppler Effect, sounds will increase in pitch as they are nearing the listener, and then decrease in pitch as the sound moves further away. This is because when sound waves travel a shorter distance, the waves are more compact (higher frequency), producing a higher pitch. The further a listener is from the sound, the lower the pitch because the sound waves are more spread apart (lower frequency).

The rope’s velocity when it reached the lower climber is 9.35 m/s.

The force of attraction felt by a person at the center of a planet or Earth is called as the gravity.

Given is a climber throws a rope with a velocity of 3.0 m/s downward to another climber 4.0 m directly below

The upward acceleration is equal to the acceleration due to gravity a = -g = -9.81 m/s

Using the third equation of motion ,we have

Vf² -Vi² =2as

Put the values, we get

Vf² = 3² + 2(-4.0)(-9.81)

Vf = 9.35 m/s

Thus, rope’s velocity when it reached the lower climber is 9.35 m/s.

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Answer: molecules heat up under different ranges of heat causing bonds to break down but depends on the solid. There are different melting points.

Explanation:

Answer:

I hope this helps ^^

Explanation:

If more factories start using large tanks of bacteria to remove carbon dioxide from the atmosphere, it would likely lead to a decrease in the overall amount of carbon dioxide in the atmosphere. Carbon dioxide is a greenhouse gas that contributes to the greenhouse effect, trapping heat in the Earth's atmosphere and causing global warming.

With a decrease in the amount of carbon dioxide, the total amount of energy in the Earth system would be affected. Carbon dioxide acts as a blanket, trapping heat from the sun and preventing it from escaping back into space. When the concentration of carbon dioxide decreases, less heat is trapped, resulting in a reduction of the total energy within the Earth system.

As for the global average temperature, the decrease in carbon dioxide levels would have a cooling effect on the planet. Since carbon dioxide is a major contributor to the greenhouse effect, its reduction would reduce the overall warming impact. This could lead to a decrease in the global average temperature, potentially slowing down or mitigating the rate of global warming.

However, it's important to note that the relationship between carbon dioxide levels, energy balance, and global temperature is complex and influenced by various factors. The impact of reducing carbon dioxide through bacteria tanks would depend on the scale of implementation, the effectiveness of the technology, and other factors that affect the Earth's climate system.

Answer:

the  kinetic energy the bat can give to a ball is 2,025 J.

Explanation:

Given;

mass of the bat, m = 2kg

velocity of the bat, v = 45 m/s

The kinetic energy the bat can give to a ball is calculated as;

\(K.E = \frac{1}{2} mv^2\\\\K.E = \frac{1}{2} \times \ 2 \ \times \ 45^2\\\\K.E = 2,025 \ J\)

Therefore, the  kinetic energy the bat can give to a ball is 2,025 J.

Answer:

False

Explanation:

they just what they spent money on and thats not all of it

Hi there!

We can use the following equation for a point charge in a magnetic field:

\(\large\boxed{F_B = qv \times B}\)

\(F_B\) = Force due to magnetic field (7.6 × 10⁻¹³N)
\(q\) = Charge of particle (1.6 × 10⁻¹⁹ C)

\(v\) = velocity of particle (6.6 × 10⁶ m/s)

\(B\) = Magnetic field strength (1.8 T)

Or, without the cross product:
\(F_B = qvBsin\theta\)

θ = angle between particle's velocity and field

We can rearrange to solve for theta:
\(\frac{F_B}{qvB} = sin\theta\\\\\theta = sin^{-1} (\frac{F_B}{qvB})\)

Solve for theta:
\(\theta = sin^{-1} (\frac{7.6*10^{-13}}{(1.6*10^{-19})(6.6*10^6)(1.80)}) = \boxed{23.57^o}\)

Answer:

An independent variable is a variable that stands alone and isn't changed by the other variables you are trying to measure.

A dependent variable is something that depends on other factors.

A reflective journal is like looking in a mirror in that it provides an opportunity for self-reflection and introspection.

A reflective journal is a type of personal journal that is used to document and record thoughts, feelings, and experiences.

A reflective journal allows an individual to reflect on their thoughts, feelings and experiences, and to assess the impact of these on their life and behavior. In this sense, it can be seen as a tool for self-discovery and growth.
I agree with this analogy. Reflective journaling provides an opportunity to take a step back and objectively assess our lives and our behavior, much in the same way that looking in a mirror can help us to reflect on our physical appearance and make changes accordingly. Through reflective journaling, we can gain insight into our motivations, values, and beliefs, and use this to make positive changes in our lives.

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A) OF = 2.25 x 10-6 N in the -i direction, E = 2.25 x 103 N/C in the -i direction and f = -i.  The direction of the force on the test charge is opposite to the direction of the electric field due to Coulomb's law.

The magnitude of the force and electric field are equal as the test charge is positioned such that the electric field is uniform and proportional to the force. The use of unit vector notation simplifies the representation of the force vector, making it easier to perform vector operations and compare forces in different scenarios. The expression for the force in unit vector notation, f = -i, simply represents the force as a vector in the -i direction with magnitude equal to the magnitude of the force. This notation makes it easier to perform vector operations, such as addition and subtraction of forces, and to compare forces in different situations.

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Answer:

the answer is A. A school crossing guard raises a stop sign that weigh 10 N

Only the school crossing guard who raises a stop sign that weighs 10 N does the work.

Work done in physics is defined as the dot product of force and displacement caused by it. Mathematically -

W = F.x

W = |F| |x| cos Ф

where Ф is the angle between force and displacement

Given are the various situations from which we have to select the situation in which work is done.

A specific amount of displacement is needed for the work to be done. Similarly, the displacement and the force vectors should not have 90 degree angle between them. If any of this is zero than -

W = F × 0 = F × x × cos(90) = 0

It is only in case A that the guard applies a force equal to the weight of the stop sign and displacement is in the same direction. While in other three cases, either displacement is zero (C) or the angle between displacement and force is 90 degrees (B & D).

Therefore, we can conclude that, only the school crossing guard who raises a stop sign that weighs 10 N does the work.

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Answer:

42secs

Explanation:

v=u-gt

0=7-10t

10t=7

t=7/10

t=7/10*60

t=42

The total amount of flour he used in all is 115kg

One of the four fundamental operations in mathematics is addition, along with subtraction, multiplication, and division. When two whole numbers are added, the sum or total of those values is obtained.

Given that Baker Bill used 67 kilograms of flour on Monday. He used 48 kilograms of flour on Tuesday

We would add the kg of flour he used

This would be 67 + 48 = 115kg of flour

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When all other factors are constant, the initial velocity determines the length of a projectile's trajectory.

A projectile is an object that is thrown or projected into the air and follows a path determined by the forces of gravity and air resistance. The length of a projectile's trajectory is determined by the time it takes for the projectile to reach its maximum height and the time it takes for the projectile to return to the ground. Initial velocity is the velocity at which a projectile is launched, and it determines the initial speed and direction of the projectile.

The greater the initial velocity, the farther the projectile will travel before hitting the ground, this is because the projectile spends less time in the air, so it has less time to slow down due to air resistance. In contrast, a projectile with a lower initial velocity will travel a shorter distance because it spends more time in the air and slows down more due to air resistance. Therefore, the initial velocity is a crucial factor that determines the length of a projectile's trajectory.

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