The impulse given to a body of mass 1.5 kg, is 6.0 kg
• m•s-?
If the body was initially at rest, what
will its resulting kinetic energy be? Give your answer in J without units.

Show work

The car is moving at approximately 12.5 meters per second.

The kinetic energy (KE) of an object can be calculated using the formula:

KE = 1/2 * m * \(v^2\)

where

KE = kinetic energy,

m =Mass of the object, and

v = velocity.

In this case, we are given the mass (m) of the car as 1600 kg and the kinetic energy (KE) as 125,000 J. To find the velocity .

Substituting the  values , we have:

125,000 J = 1/2 * 1600 kg *\(v^2\)

Now, we can solve for v by rearranging the equation:

\(v^2\) = (2 * 125,000 J) / 1600 kg

\(v^2\) = 156.25 \(m^2/s^2\)

Taking the square root, we find:

v = √156.25\(m^2/s^2\)

v ≈ 12.5 m/s

Therefore, the car is moving at approximately 12.5 meters per second.

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Explanation:

Calculating this according to the m/s rate

Now solving the question

If the car goes 20 m/s mathematically we can generate it as

15 × 60 = 600 secs

If the car goes 20 meters per every second it means

The car will go 20 meters for 900 secs

Which is 900 ×20 = 18000m/s

=18000÷1000 = 1km

Therefore the answer is 18km

Answer:

Answer is (b) Mercury, venus and Mars.

Explanation:

i think b is correct!!

;-) :-) :-) :-)

Statement b and d are inconsistent with Dalton's atomic theory.

Dalton's atomic theory, as originally stated, includes the following postulates:

All matter is made up of tiny, indivisible particles called atoms.

All atoms of a given element are identical in mass and properties.

Compounds are formed when atoms of different elements combine in fixed ratios.

Chemical reactions involve the rearrangement of atoms; no atoms are created, destroyed or changed into atoms of another element.

Statement b contradicts postulate 3 by suggesting that a water molecule is formed from 1.5 hydrogen atoms and 1 oxygen atom. However, in Dalton's theory, atoms combine in whole-number ratios to form compounds.

Statement d contradicts postulate 4 by suggesting that the formation of a compound involves the destruction of one or more atoms. However, in Dalton's theory, atoms are neither created nor destroyed in chemical reactions. Instead, they are rearranged to form new compounds.

Statement a and c are consistent with Dalton's atomic theory as all atoms of a given element are identical in mass and properties and compounds are formed when atoms of different elements combine in fixed ratios.

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Answer:

0 seconds its jst zero seconds

Answer:

The laws of reflection govern how incident light rays are reflected on reflecting surfaces such as mirrors, smooth metal surfaces, and clear water. The laws of reflection are as follows: The incident ray reflected ray, and normal to the mirror’s surface are all in the same plane. The incidence angle equals the reflection angle.

Explanation:

Answer:

29.4 m.s

Explanation:

Vf = vo + at       v o = original velocity = 0 in this case

Vf = at

   = 9.81 m/s^2 * 3 = 29.4 m/s

Answer:

whan he observed that magnetic forces often produced circular motions,he began to connect the phenomenon of magnetism with the rotation of the earth.This led to his discover of the earth's own magnesium,and provided the theoretical foundation for the science of geomagnetism.

hope it's helpful ❤❤❤

THANK YOU.

The farmer uses this technique to protect the produce from freezing because as the water in the tubs begins to freeze, it releases heat. This heat can help to keep the surrounding air in the shed above freezing, protecting the produce from freezing as well. Additionally, as the water in the tubs freezes, it releases latent heat of fusion, which is the energy required to change a substance from a solid to a liquid. This energy is also released in the form of heat, further helping to keep the produce from freezing.

The kinetic energy of the flywheel after 1 minute of rotation, given that it has a mass of 50 and radius of 40 cm is 32.4 KJ (Option D)

We'll begin by obtaining the velocity of the flywheel. This is shown below:

v = at

v = 0.6 × 60

v = 36 m/s

Finally, we shall determine the kinetic energy of the flywheel. Details below:

KE = ½mv²

KE = ½ × 50 × 36²

KE = 25 × 1296

KE = 32400 J

Divide by 1000 to express in KJ

KE = 32400 / 1000

KE = 32.4 KJ

Thus, the kinetic energy is 32.4 KJ (Option D)

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Force constant of the spring is 846 N/m, spring will stretch 1.36 cm when the 1.15-kg block is hung on it, work done by external agent is 23.9 J

(a) To find the force constant of the spring, we can use Hooke's law, which states that the force F exerted by a spring is proportional to its displacement x from its equilibrium position, with a constant of proportionality known as the spring constant k. Mathematically, we can write:

F = -kx

where the negative sign indicates that the force is in the opposite direction of the displacement. Rearranging this equation, we get:

k = -F/x

Substituting the given values, we get:

k =\(-(mg)/x = -(2.30 kg)(9.81 m/s^2)/(0.0271 m)\) = -846 N/m (Note: the negative sign indicates that the spring is being stretched, so the force is in the upward direction.)

Therefore, the force constant of the spring is 846 N/m.

(b) If the 2.30-kg object is removed and replaced by a 1.15-kg block, the force exerted by the spring will be:

F = kx = \((846 N/m)(0.01355 m)\) = 11.5 N

where we have used the fact that the displacement of the spring is proportional to the force exerted on it, and that the force constant is the same for both cases.

Using Hooke's law again, we can find the displacement of the spring with the 1.15-kg block:

x = F/k = \((11.5 N)/(846 N/m)\) = 0.0136 m = 1.36 cm

Therefore, the spring will stretch 1.36 cm when the 1.15-kg block is hung on it.

(c) To find the work required to stretch the spring 6.90 cm from its unstretched position, we can use the formula for the elastic potential energy stored in a spring:

PE = \((1/2)kx^2\)

where k: spring constant and x: spring displacement from equilibrium

Substitute value:

PE = \((1/2)(846 N/m)(0.069 m)^2\) = 23.9 J

Therefore, an external agent must do 23.9 J of work to stretch the spring 6.90 cm from its unstretched position. This work is stored as elastic potential energy in the spring, and can be released to do work on another object when the spring returns to its equilibrium position.

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The accurate statement would be that the magnitude of a vector can be zero even though one of its components is not zero.

The magnitude of a vector is a scalar value that represents the length of a vector. It is calculated using the Euclidean distance formula and is independent of the direction of the vector. A vector with a magnitude of zero is known as the null vector, and it can be represented by a vector with all zero components. Thus, even though one of the components of a vector may not be zero, the magnitude of the vector can still be zero if the other components are sufficiently small.

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Your question seems to be missing, but I suppose the full question was:

"Which of the following is an accurate statement?

The magnitude of a vector can be zero even though one of its components is not zero.

Rotating a vector about an axis passing through the tip of the vector does not change the vector.

The magnitude of a vector is independent of the coordinate system used.

Even though two vectors have unequal magnitudes, it is possible that their vector sum is zero

It is possible to add a scalar quantity to a vector."

Answer:

The magnitude of the normal force is equal to the weight of the box multiplied by the cosine of the angle θ.

Explanation:

When a box is pulled along a frictionless surface at an angle θ, the normal force acting on the box is perpendicular to the surface and opposes the force of gravity.

In this case, the box is accelerating to the right, which means the force F is greater than the force of gravity pulling the box downward.

The magnitude of the normal force (N) can be determined by breaking down the forces in the vertical direction:

Sum of vertical forces = 0

N - mg * cos(θ) = 0

Here, mg * cos(θ) represents the vertical component of the weight of the box, which is balanced by the normal force.

Rearranging the equation, we have:

N = mg * cos(θ)

There are two parts main parts of the atoms they are the nucleus and the orbits.

The atom mains consists of three particles, protons, neutrons, and electrons.

The protons are positively charged particles. The charge of a proton is 1.602×10⁻¹⁹ C. And the neutron does not possess any charge. The neutrons are neutral particles. Protons and neutrons are located at the nucleus of an atom.

The electrons are negatively charged particles. The charge of an electron is -1.602×10⁻¹⁹ C. The electrons will be orbiting the nucleus. Thus they are located around the nucleus of an atom.

The  acceleration, tension of the cord between the 3.5 and 1 block, and the force excreted on the 2 block from the 1 block is 12.6 N.

To solve this problem, we need to apply Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and acceleration.

We can start by finding the acceleration of the system. Since the surface is frictionless, there are no horizontal forces acting on the blocks except for the tension in the string. Thus, we can write:

F - T = (m1 + m2 + m3) * a

where F is the force acting on the 3.5 kg block, T is the tension in the string between the 3.5 kg and 1 kg blocks, and a is the acceleration of the system. Substituting the values given in the problem, we get:

46 N - T = (1 kg + 2 kg + 3.5 kg) * a

46 N - T = 6.5 kg * a

Next, we need to find the tension in the string between the 3.5 kg and 1 kg blocks. This tension is the same throughout the string, so we can use the same equation we used to find the acceleration:

T - m1 * g = m1 * a

where g is the acceleration due to gravity (9.8 m/s^2). Substituting the values given in the problem, we get:

T - 1 kg * 9.8 m/s^2 = 1 kg * a

T = 1 kg * (a + 9.8 m/s^2)

Now, we can substitute this expression for T into the first equation we derived to get:

46 N - 1 kg * (a + 9.8 m/s^2) = 6.5 kg * a

Simplifying and solving for a, we get:

a = 2.84 m/s^2

Now that we know the acceleration of the system, we can find the force exerted by the 1 kg block on the 2 kg block. Since there are no horizontal forces acting on the 2 kg block, this force is equal in magnitude and opposite in direction to the force exerted by the 2 kg block on the 1 kg block. Thus, we can write:

F1-2 = -m2 * a

where F1-2 is the force exerted by the 1 kg block on the 2 kg block. Substituting the values given in the problem, we get:

F1-2 = -2 kg * 2.84 m/s^2

F1-2 = -5.68 N

Therefore, the force exerted by the 1 kg block on the 2 kg block is 5.68 N, directed to the left.

Finally, we can use the equation we derived earlier for the tension in the string to find the tension between the 3.5 kg and 1 kg blocks. Substituting the value we found for a, we get:

T = 1 kg * (2.84 m/s^2 + 9.8 m/s^2)

T = 12.6 N

Therefore, the tension in the string between the 3.5 kg and 1 kg blocks is 12.6 N.

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ANSWER

25 N

EXPLANATION

Given:

• The spring constant, k = 75 N/m

• The distance the spring is stretched, x = 0.333 m

Find:

• The ,weight, that hangs from the spring, Fg

If we draw a free-body diagram for this situation, we can see that the forces acting on the mass hanging from the spring are the spring force and its weight,

If the weight hangs motionless, it means that it is in equilibrium and the two forces are equal and opposite,

So the weight is equal to the spring force,

Hence, the weight is 25 N.

If we just had one telescope and wanted to photograph stars in both visible and ultraviolet light, we should put it in space.

While visible light is observable from Earth, ultraviolet light can only be seen from space. Indeed, Hubble's ability to observe ultraviolet light gives it a major advantage over larger ground-based observatories.

Rank the visible light hues from left to right according to the altitude in the atmosphere where they are totally absorbed. All visible light wavelengths reach the Earth's surface, which is why we can see all colors and why visible-light telescopes perform well on the ground.

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Answer:

In the taller, skinnier cylinder, each tick mark represents 2, while in the larger one, each tick mark represents 50.

Explanation:

If you count the tick marks between each big number, then you can divide, and figure out what amount each tick mark represents.

Answer:

the speed of light in air is about 299,000,000 and 3×10⁸ m/s

A master's thesis and a dissertation are typically required for clinical psychology programs. Each of these typically takes one to two years.

Psychology doctoral degrees provide students with the training they need to pursue careers in academic research, professional practice, or both. The most common academic degrees awarded are the Doctor of Philosophy (PhD) or the Doctor of Psychology (PsyD). There are notable disparities between the types of training and professional goals of those with these degrees, even though each is intended to engage students in deep knowledge and abilities within an area of psychology. Understanding these variations is the first step in determining which curriculum is the greatest fit for a particular student.

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Answer:

Explanation:

A cargo spacecraft was orbiting the earth. It is equipped with rocket and has an initial mass of 30 metric ton. It wants to catch up with the international space station to deliver the cargo. So its rocket engine was fired for 1 minute. The engine ejects mass at a rate of 30 kg/s with an exhaust velocity of 3.1 km/s. The pressure at the nozzle exit is 5 kPa and the diameter of exit area is 94.4 cm. What is the thrust of the eng

Answer:

19,200j

Explanation:

formular W=f×d

a) W=240N×20m

= 4,800j

b) W=200N×20m

=4000j

C) Td= 4800×4000\20×50

td= 19,200,000/1000

td= 19,200j

sorry if am wrong ☹️

n = 1.50. In this case, the index of refraction is 1.50, which demonstrates that the lens is able to refract light in order to form an image.

Let us calculate the focal length of the lens:

F = 1/[(1/r1)+(1/r2)]

F = 1/[(1/3.00 cm)+(1/3.00 cm)]

F = 1.50 cm

Calculate the index of refraction:

n = 1/(1/f - 1/d)

n = 1/(1/1.50 cm - 1/1.98 cm)

n = 1.50

Both of these surfaces cause light rays to bend and converge at a focal point on the other side of the lens. The index of refraction of the lens can be calculated by using the equation n = 1/(1/f - 1/d), where f is the focal length and d is the distance of the image.

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Answer:

Probably copper wire

Explanation:

I took the class and that's the only one that sounds right but I'm pretty dum lol

Answer:

8 divided by 12 is 1.6

Explanation:

. .......

The temperature change of the bullet is 85.47 ℃.

To calculate the temperature change of the silver bullet, we can use the equation:

ΔT = Q / (m * c)

where,

ΔT = temperature change

Q = heat transferred

m = mass of the bullet

c = specific heat capacity of silver

Since all the internal energy generated by the impact remains with the bullet, the heat transferred is equal to the change in internal energy.

The internal energy can be calculated:

U = (1/2) * m * \(v^{2}\)

where,

U = internal energy

v= velocity of the bullet

Given that the muzzle speed of the bullet is 200 m/s and the mass of the bullet is not provided, we cannot directly calculate the internal energy. However, we can assume a mass, such as 0.01 kg, for the bullet to proceed with the calculation.

Calculating the internal energy:

U = (1/2) * m * \(v^{2}\)

U = (1/2) * 0.01 kg * \((200 m/s)^{2}\)

U = 200 J

Now, we can calculate the temperature change:

ΔT = Q / (m * c)

ΔT = U / (m * c)

ΔT = 200 J / (0.01 kg * 234 J/kg.℃)

ΔT ≈ 85.47 ℃

Therefore, assuming a mass of 0.01 kg for the silver bullet, the temperature change is approximately 85.47 ℃.

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The word or phrase that should be emphasized in the given step to convey order is "Immediately after you pop." Hence, option B  is correct

The phrase "Immediately after you pop" indicates the precise timing for the next step, which is to drag the front foot up and jump forward. It is important to follow this sequence of actions in order to execute the trick correctly.

By emphasizing "Immediately after you pop," the reader or listener will understand that this is a crucial step that should not be delayed or performed out of order. This will help them focus on the timing and make sure they do not miss this important step.

While the other phrases are also important, emphasizing "Immediately after you pop" will ensure that the reader or listener understands the correct sequence of actions and is able to execute the trick properly.

Correct answer is Option B) Immediately after you pop.
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The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

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d

firstly so she can fit the experiment in the class and in addition to that the smaller the gap the more diffraction