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A hoop and a disk, both of 0.66- m radius and 4.0- kg mass,are released from the top of an inclined plane 3.1 m high and 8.9 mlong. What is the speed of each when it reaches the bottom? Assume that they both roll without slipping.
a) What is the speed of the hoop?b) What is the speed of the disk?
an electron is accelerated from rest by a potential difference of 350 v. it then enters a uniform magnetic field of
Suppose that 250g of water at 85oC is mixed with 25g of ice at 0oC in an insulated container of negligible heat capacity. How much of the ice has melted
The ball rebounds straight upward to a height of 0.700 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?
question the intensity 18m from a source of sound is measured to be 10-4wm2.a determine the intensity of the sound in
A startled armadillo leaps upward rising 0.550 m in the first 0.203 is. (a) What is its initial speed as it leaves the ground? m/s (b) What is its speed at the height of 0.550 m? m/s (c) How much higher does it go?
two electric charges, eagh of+6.00μ C are placed at thecorners of the base of the square of the side s=8.50m. calculate the magnitude of the force on each of the charges
A parallel-plate vacuum capacitor has 6.36 J of energy stored in it. The separation betweenthe plates is 2.20 mm. If the separation is decreased to1.85 mm,
For a particular scientific experiment, it is important to be completely isolated from any magnetic field, including the earth's field. What is the current in the current loop
explain the shape of the distribution of sample means.
a 85-turn circular coil has diameter 4.3cm and resistance 2.9o. this coil is placed inside a solenoid with coil and
How much energy is transferred to the water as heat
A wrecking ball swings at the end of a 11.4-m cable on a verticalcircular arc. The crane operator manages to give the ball a speedof 12.0 m/s as the ball passes through the lowest point of itsswing and then gives the ball no further assistance.
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