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Iteru [2.4K]
4 years ago
13

Projectile motion is an example of what kind of motion

Physics
2 answers:
Orlov [11]4 years ago
7 0

Projectile motion is a form of motion experienced by an object or particle (a projectile) that is thrown near the Earth's surface and moves along a curved path under the action of gravity only (in particular, the effects of air resistance are assumed to be negligible). Therefore its circular motion..

Elza [17]4 years ago
7 0

Answer:

Projectile movement is an example of what kind of two-dimensional movement.

Explanation:

We call the movement of projectiles to the free movement of a body launched in a uniform gravitational field, where the acceleration of gravity is constant and vertical, the air resistance being negligible. This movement is considered a two-dimensional movement, because when we launch a projectile, its movement can always be decomposed into two movements, one horizontal and one vertical.

The horizontal movement will be uniform since there is no acceleration with a horizontal component, that is, the horizontal component of the projectile speed is constant.

The vertical movement will be uniformly varied with an acceleration equal to that of gravity.

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A ball is launched horizontally from a height of 172 m above the ground. its initial horizontal velocity is 16m/s. how long does
Romashka-Z-Leto [24]

Answer:

172*16 times it and that is your answer

8 0
3 years ago
Neutrons incident on a heavy nucleus with spin J 0 show a resonance at an incident energy ER = 250 eV in the total cross-section
ivolga24 [154]

Answer:

elastic partial width is 2.49 eV

Explanation:

given data

ER  E = 250 eV

spin J = 0

cross-section magnitude σ = 1300 barns

peak P = 20ev

to find out

elastic partial width W

solution

we know here that

σ = λ²× W /  ( E × π × P )     ...................1

put here all value

σ = (0.286)² × W  × 10^{-16}/  ( 250 × π × 20 )

1300 × 10^{-24} = (0.286)² × W  × 10^{-16}/  ( 250 × π × 20 )

solve it and we get W

W = 249.56 × 10^{-2}

so elastic partial width is 2.49 eV

8 0
4 years ago
Special relativity can be used to study an object in which frame of reference?
Tresset [83]
Special relativity led the path for general relativity; special relativity is in a sense a special application of the rules of general relativity. While general relativity is in position to tackle all of these problems, special relativity can tackle only problems in inertial frames. Inertial frame means that the frame of reference is inot accelerating. So, we disqualify answers A and D. However, remember that moving in a circle means that there is an acceleration, the centrifugal one, even if the speed does not change. Hence C is also incorrect.
The correct answer is B, since if there is no change in velocity, the frame does not accelerate and it is inertial.
3 0
3 years ago
Read 2 more answers
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Natasha_Volkova [10]

Answer: 10%

Explanation:

n this case, if the earth' mass goes up by 10%, then the force of gravity on you, or your weight, will increase by the same amount, that is 10%

4 0
3 years ago
Which factor causes the two balls to reach the ground at the same time
bixtya [17]
The factor that causes that is gravity
5 0
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