Nothing at all it can't get
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Answer:
Explanation:
Since the pulley has a mass concentrated on its rim, the pulley can be considered as a ring.
The moment of inertia of a ring is
The mass on the left is heavier, that is the pulley is rotating counterclockwise.
By Newton's Second Law, the net torque is equal to moment of inertia times angular acceleration.
Here, the net torque is the sum of the weight on the left and the weight on the right.
Applying Newton's Second Law gives the angular acceleration
The relation between angular acceleration and linear acceleration is
Then, the linear acceleration of the masses is
Answer:
(C) length / height of the plane
Explanation:
The mechanical advantage of an inclined plane can be determined using different variables. In this case, the geometry of the setup is relevant. The advantage is proportional to the length of the plane, and inversely proportional to the height: it is the ratio (length) / (height) of the plane. For example, given a desired, fixed height, a long inclined plane gives you a bigger mechanical advantage than a short inclined plane. In this example, pushing an object up the long plane will require a smaller force, than it would on the short plane.
Strictly speaking, (D) would also "allow you to determine the mechanical advantage" because you could simply invert the ratio listed under (D). However, (C) is the best, direct, answer.
Slow down before entering the curve. Stay close to the outside. Use the gas pedal as you enter the middle of the curve.
Answer:
Air and ice
Explanation:
convection, process by which heat is transferred by movement of a heated fluid such as air or water.
Everyday Examples of Convection:
radiator - A radiator puts warm air out at the top and draws in cooler air at the bottom.
steaming cup of hot tea - The steam you see when drinking a cup of hot tea indicates that heat is being transferred into the air.
ice melting - Ice melts because heat moves to the ice from the air.
