What is the door''s moment of inertia for rotation

Reference no: EM1322117

Q1. The specific heat capacity of aluminium is 0.22 cal/g°C. How much energy needs to flow into 20 grams of aluminium to change its temperature by 15°C?

Q2. A 21.0 kg solid door is 220 cm tall, 94cm wide. What is the door's moment of inertia for rotation about a vertical axis inside the door, 17cm from one edge?

Q3. A tennis ball with a speed of 13.20 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 10.36m/s. If the ball is in contact with the wall for 0.0140 s, what is the average acceleration of the ball while it is in contact with the wall? Take "toward the wall" to be positive direction. Respond in units of m/s^2

Reference no: EM1322117

Questions Cloud

A race car can be solved with a constant acceleration : If the car is going 55m/s, how many meters will it travel before it stops? How many meters will it takes to stop car going twice as fast.

Find the acceleration of the object : An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ?

What acceleration does each box experience : Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0.10, and m2 = 2.0kg with a coefficient of 0.20, are placed on a plane inclined at 0 = 30o.

Find the magnitude and direction of the initial velocity : A marble is thrown horizontally with a speed of 19.0 m/s from the top of building. When it strikes the ground, marble has a velocity that makes an angle 75° with the horizontal. From what height above the ground was the marble thrown.

What is the door''s moment of inertia for rotation : A tennis ball with a speed of 13.20 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 10.36m/s.

What is the acceleration of the object : An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ?

What are the magnitudes of components of the ship : An autographed baseball rolls off a 0.64m high desk and strikes the floor 0.61 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.80 m/s^2.

What is the acceleration of plane : Plot the position, velocity, and acceleration of the plane throughout this time interval as a function of time, using initial position of the plane as the origin.

Determine the maximum speed and the earliest time : A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz.

User Account

All Pages