3 years ago

What exercise became part of movement in the 1970

Physics

1 answer:

joja [24]3 years ago

8 0

Answer:

Aerobic exercise became part of this movement in the 1970s.

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in an automobile crash, a vehicle was stopped at a red light is rear-ended by another vehicle. The vehicles have the same mass.

Masja [62]

8 m/s

Explanation:

Using conservation of momentum :-

$m1u1 + m2v1 = m1u2 + m2v2$

Where:

m1 = Mass of first vehicle

m2 = Mass of second vehicle

u1 = initial speed of first vehicle

v1 = initial speed of second vehicle

u2 = Final speed of first vehicle

v1 = Final speed of second vehicle

From the received informations:

$m1 = m2$

$v1 = 0$

$v2 = u2 = 4 \frac{m}{s}$

$m1u1 + 0 = 4m1 + 4m1$

Now divide both sides by m1 :-

$u1 = 4 + 4$

$u1 = 8m/s$

Therefore, final answer is 8 m/s

4 0

3 years ago

How to find the value of sin(90+ theta) ?

koban [17]

Sin(90 + θ)

By addition angle formula for sine.

sin90cosθ + cos90sinθ

1*cosθ + 0*sinθ

cosθ + 0

= cosθ

sin(90 + θ) = cosθ

6 0

3 years ago

A car acquires a velocity of 72km/h in 10sec starting from rest .find it's

mina [271]

Distance travelled.

8 0

4 years ago

how does the pattern of heat transfer from Earth’s interior to Earth’s surface affect the Earth’s plates?

olga_2 [115]

Answer:

that it is bumpy or by the sun

Explanation:

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3 years ago

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The mass of an object does not depend on its shape - it stays the same. Give an example that would prove this to be true.

lianna [129]

Answer:

it depends on the density.

an object can be small but way more.

Explanation:

8 0

3 years ago