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The weight of the block on the table is 454 N and that of the hanging block is 205 N. Ignore all frictional effects, and assuming the pulley to be massless.
(a) Find the acceleration of the two blocks.
(b) Find the tension in the cord.
A small immersion heater can be used in a car to heat a cup of water for coffee or tea. suppose the manufacturer's claim of 60% efficiency.
A 0.15g honeybee acquires a charge of 22pCwhile flying. The electric field near the surface of the earth is typically 100N/C, What is the ratio of the electric force on the bee to the bee's weight
At a county fair, a boy and two friends bring their teddy bears on the giant Ferris wheel. The boys are seated in positions 45° from each other. How far apart will the three teddy bears land
Two blocks made of different materials, connected by a thin cord, slide down a plane ramp inclined at an angle 32 degrees to the horizontal. Determine the tension in the cord
In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 . Ignore air resistance. A flea jumps straight up to a maximum height of 0.520 . What is its initial velocity as it leaves ..
A block is placed at the bottom of the incline and given an initial velocity V0 directed along the incline. Find what should be the angle of the incline a
the starter motor of a car engine draws a current of 110a from the battery. the copper wire to the motor is 4.40mm in
a ball is thrown vertically upward with a speed of 25m/s, how long does it take to reach its highest point
You can think of the work?kinetic energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. Use the work-kinetic energy theorem to find the net work that is done on t..
Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. A person would be able to hear the sound produced by the above standing wave, What is the lowest flagpole harmonic the mouse can hear
The angle of refraction of a ray of light traveling through a piece of fused glass quartz is 29°. Find the angle of incidence
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
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