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3 years ago

At what rate does gravity cause objects to accelerate at sea level on earth

Physics

1 answer:

VLD [36.1K]3 years ago

5 0

The acceleration due to gravity on Earth is 9.8 m/s per second.

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Explanation:

i think C . it is twice the size of the object

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3 years ago

Condyloid joints are, logically enough, created by joints at condyle bone markings.

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2 years ago

The train traveled 500 kilometers north to Odessa in 2 hours . What’s the train’s speed ? What is the velocity ?

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Explanation:

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Velocity is speed and direction.

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3 years ago

Which car is accelerating?

Oliga [24]

Answer:

The car that is accelerating is B a car that rounds a curve at a constant speed

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2 years ago

Read 2 more answers

Astronauts are trained for take-off in a high-speed centrifuge of 4.7 m radius that spins in the horizontal plane.

Leokris [45]

Answer:

a) $1.94 \frac{rad}{s}$

b) $9.12\frac{m}{s}$

c) Towards the center of the centrifuge

Explanation:

Becuse the centrifuge rotates in circular motion, there's an angular acceleration tha simulates high gravity accelerations

$a_{rad}=\omega r^{2}$

with r the radius and ω the amgular velocity, in or case $a_rad=3.5g$ so:

$3.5g=\omega r^{2}$ and g=9.8 $\frac{m}{s^{2}}$

solving for ω:

$\omega=\frac{3.5g}{r^2}=\frac{3.5*9.8}{4.2^2}$

$\omega = 1.94 \frac{rad}{s}$

b) Linear speed (v) and angular speed are related by:

$v=\omega r =(1.94)(4.7)$

$v= 9.12\frac{m}{s}$

c) The apparent weigth is pointing towards the center of the circle, becuse angular acceleration is pointing in that direction.

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2 years ago