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Vanyuwa [196]
3 years ago
9

How is the acceleration of an object in uniform circular motion constant?

Physics
2 answers:
nevsk [136]3 years ago
5 0
In both magnitude and direction since acceleration is a vector quantity
STALIN [3.7K]3 years ago
5 0

Answer:

C. in both magnitude and direction

Explanation:

Circular motion is the movement of a body rotating around an axis along a circular path of constant radius. This movement can be uniform, if the speed of rotation is constant, or varied, if its speed changes over time. When an object moves in a circular motion, the speed is constant in magnitude and direction.

The circular movement occurs when a force of constant modulus is applied in a direction perpendicular to the speed of a piece of furniture, so that the modulus of this velocity remains constant, changing only its direction and its direction. The force applied in this case is called the centripetal force.

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In 1.71 minutes, a ski lift raises four skiers at constant speed to a height of 148 m. The average mass of each skier is 62.9 kg
Vitek1552 [10]

Answer:

3560.36 Watts

Explanation:

Power, P=\frac {nΔW}{Δt) where P is power, n is the number of skiers, t is time in seconds and Δt is change in time, ΔW is given by mgh where m is mass, g is gravitational constant, h is height

Substituting n for 4 skiers, m for 62.9 Kg, g for 9.81, h for 148 m and t for 1.71*60=102.6 seconds

P=\frac {4*62.9*9.81*148}{1.71*60}=3560.360702  Watts

Average power is approximately 3560.36 Watts

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Why are objects that fall near earths surface rarely in free fall?
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Objects that fall near earths surface are ALWAYS falling through air, unless they're inside some kind of a vacuum chamber with all the air removed from it.

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3 years ago
An insulated rigid tank contains 4 kg of argon gas at 450 kPa and 30°C. A valve is now opened, and argon is allowed to escape un
zheka24 [161]

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Explanation: All shown in the attachment.

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