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Alchen [17]
4 years ago
15

Is this an example of an elastic collision or inelastic collision? A 200-kg bumper car stopped at an intersection is rear-ended

by an 1100-kg truck
Inoving at 13 m/s. If the car was in neutral and the brakes were off, the bumper car would BOUNCE OFF of the truck into the intersection.​
Physics
1 answer:
Alina [70]4 years ago
4 0

Answer:

inelastic collision.

Explanation:

An elastic collision consists in a collision in wich the bodies implied bounce off. Furthermore, the momentum of the bodies is conserved.

In as inelastic collision the momentum is not conserved, and is possible that the bodies implied in the collision stay joint after the collision.

In this case yo have that both bumper car and truck stayed joint after the collision. Hence, this situation is an inelastic collision.

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What is it called when the moon passes through the penumbra of Earth’s shadow?(1 point)
skad [1K]

Answer:  I'm not sure, but I think it would be a <em>total lunar eclipse </em>

8 0
3 years ago
A worker drives a 0.554 kg spike into a rail tie with a 2.30 kg sledgehammer. The hammer hits the spike with a speed of 62.7 m/s
Goryan [66]

Answer:

Increase in total energy will be equal to the increase in the internal energy i.e 1130.246 Joules

Explanation:

Given

Weight of sledge hammer = 2.30 kilogram

Speed of sledge hammer = 62.7 meter per second

Kinetic energy is equal to half the product of mass and velocity square

K E = \frac{1}{2} mv^2

Substituting the value of mass and velocity, we get -

KE = 0.5 * 2.30 * 62.7^2\\KE = 4520.9835

It is given that one fourth of the energy is converted into internal energy

One fourth of kinetic energy is equal to

\frac{1}{4} * 4520.9835\\= 1130.246

Increase in total energy will be equal to the increase in the internal energy i.e 1130.246 Joules

8 0
3 years ago
Read 2 more answers
A 400g mass object at rest is acted on by a 200 N net force for 12 seconds. What is it’s final velocity?
Kisachek [45]

Explanation:

do we can say that the first step is finding the acceleration of the object. We do so by saying F = ma

so a = F/m

a = 500 m/s^2

we now have the time, acceleration and initial velocity.

so we can find the final velocity by using one of newtons equations which is: vf = vi + at

so:

vf = 0 + 500 × 12

vf = 6000

note that our initial velocity was zero since the object was initially at rest.

if you still have any doubt dont hesitate to ask for further help.

3 0
2 years ago
Courtney wants to practice doing science. Which example best illustrates her
dybincka [34]

Answer:

A

Explanation:

because she wants to practice science and A is the practical option.

6 0
4 years ago
The ΔG of a reaction would be at the minimum when... Group of answer choices the equilibrium constant is equal to 1 (i.e., the r
Blizzard [7]

Answer:

the equilibrium constant is equal to 1 (i.e., the reactant and product concentrations are always equal).

Explanation:

ΔG is a symbol related to Gibbs free energy, which is a physical quantity related to thermodynamics. ΔG refers to the difference between the change in enthalpy (and sometimes entropy) and the temperature of a chemical reaction.

Gibbs free energy is very useful for measuring the work done between the reactants in a reaction. It is calculated using the formula: ΔG = change in enthalpy - (temperature x change in entropy).

The ΔG of a reaction would have a minimum value (zero), if the equilibrium constant is equal to 1 (that is, the concentrations of the reagent and the product are always equal).

5 0
4 years ago
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