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3 years ago

Is there ever a situation where an ant will have more momentum than an elephant? Explain why or why not?

Physics

2 answers:

NeX [460]3 years ago

7 0

Answer: The correct answer is D.

Explanation:

Momentum is defined as the product of the mass and the velocity.

To have more momentum, there should be both mass and the velocity.

If the object has more mass as compared to the object having lighter mass and the heavier mass object is standing still and lighter one is moving then the lighter object will have more momentum.

In the given problem, if the elephant is still standing but an ant is moving then an ant will have more momentum than an elephant.

Therefore, the correct answer is D.

kipiarov [429]3 years ago

6 0

An ant is having higher momentum than elephant only if elephant is standing still.

Explanation:

The word momentum is known as product of mass $m$ of object and its velocity $\overrightarrow v$ by which it moves and the momentum can be denoted by vector term $\overrightarrow p$ .

The object whose product of mass and velocity are higher will have more momentum.

If elephant stands still, means its velocity is equal to zero, then product of its mass and velocity will be zero. Hence, it will have zero momentum.

In the meantime, the mass of ant is insignificantly small but have some velocity for moving. So, the ant will have small momentum but somewhat greater than zero.

Therefore, an ant will have more momentum than elephant if the elephant stands still.

If an ant will stand still it have 0 velocity, so the momentum will be equal to 0. Hence, this option is also incorrect.

The option “The elephant has much high mass” is incorrect because having high mass but zero velocity will result in zero momentum.

Thus, an ant will have higher momentum than elephant if elephant is standing still.

Learn More:

1. Momentum brainly.com/question/11896510

2. More about momentum brainly.com/question/11947870

3. Force and motion brainly.com/question/11942991

Answer Details:

Grade: High School

Subject: Physics

Chapter: Momentum

Keywords:

Ant, more, explain, standing, mass, fast, still, change, object, velocity, force, times, impulse, acting, negligible, product, zero, elephant, momentum.

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Which of the following processes DOES NOT occur during the convective transfer of heat within a container of air? Group of answe

vovangra [49]

The volume of a warmed part of the air is reduced and its density increases.

Explanation:

In a convective form of heat transfer, the volume of a warmed part of air is not reduced and its density does not increase.

During convection, heat causes the warm part of the air to expand and its volume increases. When volume increases, density is reduced.

Convection is a form of heat transfer that involves the actual movement of particles of the medium.
It usually occurs in fluids i.e gases and liquids.
In convection, the cold part exerts a buoyant force on the warmer air below and causes it to rise.
As the warmer part is rising the cooler part replaces it and a convective cell is formed in the process.

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Energy transfer in the sun brainly.com/question/1140127

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3 years ago

How much total energy is dissipated in 10. seconds

noname [10]

Answer : Total energy dissipated is 10 J

Explanation :

It is given that,

Time. t = 10 s

Resistance of the resistors, R = 4-ohm

Current, I = 0.5 A

Power used is given by :

$P=\dfrac{E}{t}$

Where

E is the energy dissipated.

So, E = P t.............(1)

Since, $P=I^2R$

So equation (1) becomes :

$E=I^2Rt$

$E=(0.5\ A)^2\times 4\Omega \times 10\ s$

$E=10\ J$

So, the correct option is (3)

Hence, this is the required solution.

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3 years ago

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A girl hits a baseball with a bat. When the bat strikes the ball, what is the

Illusion [34]

Answer:

Its simple! B The ball accelerates upward!♡♡

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3 years ago

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An object is at rest in front of a compressed spring. It travels over a surface that exerts a kinetic frictional force on it and

PolarNik [594]

Answer:

the object will travel 0.66 meters before to stop.

Explanation:

Using the energy conservation theorem:

$E_i+K_i+W_f=K_f+U_f$

The work done by the friction force is given by:

$W_f=F_f*d\\W_f=\µ*m*g*d\\W_f=0.35*4*9.81*d\\W_f=13.7d[J]$

so:

$\frac{1}{2}1800*(10*10^{-2})+0-13.7d=0+0\\d=0.66m$

3 0

3 years ago

85) List and discuss the structures of a long bone. 86) Discuss the organization of the five regions of the spine. 87) Explain h

Lisa [10]

85)
The bone structure from outside would be periosteum, cortical, cancellous then medulla. Periosteum is the area outside the bone that will supply nutrition into the outer part of the bone. Cortical is the layer where bone mineral deposition is intense. In this part, the bone is compact and hard. This is the part of the bone that has great strength.
Cancellous is part of the bone where it is not too hard but not too soft. Mineralization is not so dense like cortical layer. That makes this part looks spongy.
In the medulla, most part is made from connective tissue and blood vessels. This part is responsible for the bone vascularization, which means the supply of mineral to the outer part is coming from the medulla. Mineralization is not much in the medulla, makes it not strong. Medulla or marrow also makes blood cells.

86)
The region of the spine would be cervical(neck), thoracal(chest), lumbar(back), sacrum then coccyx. The vertebrae in the neck are smaller since it did not need much strength but need more mobility. Lower part on the thoracal and lumbar is bigger and have a bigger process that will further stabilize the vertebrae. Thoracal vertebrae have a part on their side where the ribs attached. Sacrum shape was a kinda weird because it needs to be able to connect with the pelvis to make buttock. Coccyx the tailbone look like just a small remnant and doesn't seem to have a function in human.

87)
Axis is the name of cervical 2nd vertebral which was located below the atlas, 1st cervical vertebrae. Both of them doesn't have spinal processes that were stabilizing the side of vertebrae Axis also has an odontoid peg which will make the joint with atlas more flexible.
This effect makes the neck can turn to side easily. It also makes neck more mobile vertically, make a nodding movement is possible.
88)
Thre kind of joints would be: Synarthrosis, amphiarthrosis, and diarthrosis.
In synarthrosis, the joint mostly made by fibrous so that it can move. The example of this joint would be suture in the skull. In children, the skull joint is not closed to permit the head to grow but in the adult, it is closed.
Amphiarthrosis joint permits a small movement. This included the intervertebral disc.
Diarthrosis permit a wide degree of movement. This joint is more complex because it has the synovial membrane. The complex structure makes the joints more durable to shock. This was vital because organ with this join used frequently. The example of this joints would be femur and pelvic(hip) joints. Joints in arm and leg mostly diarthrosis joint.

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3 years ago