A 60-kg person is traveling in a car moving at 16 m/s, when the car hits a barrier. The person is not wearing a seat belt, but is stopped by an air bag in a time interval of 0.20 s. Determine the average force that the air bag exerts on the person?

Answers

Answer 1

Answer: Using conservation of momentum, we can solve for the force that the air bag exerts on the person.

Recall the equation for momentum (p):

$p = mv = F*dt$

We can solve for total momentum, then divide by out time interval. This gets us:

$(60kg)(16m/s) = F(0.2s)F = 4800N$

F = 4800N

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A poet endowing animals, objects, or abstract ideas with human characteristics is using the figure of speech called _____.

Answers

The most likely answer is personification. However, if said poet addresses such phenomena directly as to another human, or in a manner of dialogue, they use a type of personification known as anthropomorphism.

I need help I can't solve it and I'm struggling badly. Justin weighs 185 lb. and decides to climb a staircase that has a vertical distance of 12 m. He climbs the stairs in 12.7 seconds. Calculate his work:

Answers

Answer:

Power is work/time - not needed here

W(work) = F * D force * distance

Here W = M g h

Since 2.20 lb is equivalent to 1 kilogram mass

W = 185 lb / 2.20 lb/kg * 9.80 m/s^2 * 12 m = 824 Joules

note that a pound is a unit of force and a kilogram is a unit of mass

Power is transmitted great distances at ______ voltage and ______ current. a low, medium b high, medium c high, low d low, high

Answers

The correct answer to the question stated above is letter c, high, low.

Power is transmitted great distances at high voltage and low current.

>The reason why electrical energy transmitted at high voltage and low current is : so that huge amount of power can be delivered at long distances by using only small size of wires.

What is uniform acceleration

Answers

Answer:

It means zero acceleration.

Explanation:

When a body moves with constant velocity then it is said to be there is no rate of change of velocity takes place because it is constant. So the acceleration becomes zero or uniform acceleration.

What is the overall function of the
excretory system?

Answers

Answer:

excretion

Explanation:

The bodily process of discharging waste.

The excretory system is basically the system of an organism’s body that performs the function of exception and the bodily process of discharging wastes.

The diagram below shows a 1.5 kilogram kitten jumping from the top of a 1.80 meter high refrigerator to a 0.90 meter highcounter.
Refrigerator
Counter
CO
The kitten's gravitational potential energy on top of the refrigerator is greater, but what is the kitten's gravitational
potential energy on top of the counter? Assume gravity as 10, if needed.

Answers

Answer:

E = 27 J

Explanation:

It is given that,

Mass of a kitten is 1.5 kg

Initially, it was at a height of 1.8 m refrigerator and finally jumps to a 0.9 m height counter.

We need to find the kitten's gravitational potential energy on top of the counter. Potential energy is possessed due to the position of an object. It can be given by :

$E=mgh$

g is acceleration due to gravity

$E=1.5\ kg* 10\ m/s^2* 1.8\ m\nE=27\ J$

So, the kitten's gravitational potential energy on top of the counter is 27 J.

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