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solong [7]
3 years ago
7

Scientists who work to investigate new theories or formulate basic principles are considered _______________ scientists.

Physics
1 answer:
Inga [223]3 years ago
7 0

They are considered Theoretical scientists.

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A government agency estimated that air bags have saved over 14,000 lives as of April 2004 in the United States. (They also state
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To solve this problem it is necessary to apply the concepts related to momentum, momentum and Force. Mathematically the Impulse can be described as

I = F*t

Where,

F= Force

t= time

At the same time the moment can be described as a function of mass and velocity, that is

P = m\Delta v \rightarrow P=m(v_1-v_2)

Where,

m = mass

v = Velocity

From equilibrium the impulse is equal to the momentum, therefore

I = p

Ft = m(v_1-v_2)

PART A) Since the body ends at rest, we have the final speed is zero, so the momentum would be

p=m(v_1-v_2)

p = 75*0.15

p = 1125Kg\cdot m/s

Therefore the magnitude of the person's impulse is 1125Kg.m/s

PART B) From the equation obtained previously we have that the Force would be:

Ft = m(v_1-v_2)

F(0.025)= 1125

F= 45000N

Therefore the magnitude of the average force the airbag exerts on the person is 45000N

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3 years ago
Suppose the displacement of an object is related to time according to the expression x=By*2, what are the dimensions of B
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Answer:

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A car travels along the motorway at a steady 70 m.p.h. How far will it travel in half an hour?
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If a car is travelling 70 m.p.h that means it is travelling 70 miles PER HOUR and since we want to know half an hour we can do

70mph divided by 2 =35m.p half hour so the car is travelling 35miles in half an hour

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Answer:

sqdqk3

Explanation:

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