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A string is wrapped tightly around the circumference of a wheel with a mass of 1.23 kg and a radius of 0.324 m. The string is attached to a block with a mass of 2.48 kg which is 0.34 m above the floor. When the mass is released the wheel rotates freely as the string unwinds without slipping.
A) What is the initial energy of the system?
B) What is the moment of inertia of the wheel?
C) Write the expression for the total energy of the system just before the block hits the floor.
The moon orbits the earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the earth, Find the period for the moon's motion around the earth
The driver of a 1350 kg car, initially traveling at 12.1 m/s, applies the brakes, bringing the car to rest in a distance of 19.5 m. Find the net work done on the car
Find the maximun angle of a slope on which a parked car would not be able to slide down. use the static coefficient of rubber on concrete(1.0)
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 3.50 cm into the river. What is the weight of the truck
Laser light of wavelength 400 nm illuminates an array of very narrow slits, producing an interference pattern on a screen 70 cm from the slits. compute the separation between the slits
Suppose the mica is 1.5 thick (and therefore fills the space between the plates).The charges on the plates are equal and opposite and of magnitude 380.
To start a jump this insect can accelerate at 4m/s^2 over a distance of 2.0mm. What is the upward velocity it takes off at
An AC generator supplies an rms voltage of 120 V at 60.0 Hz. It is connected in series with a 0.350 H inductor, a 5.00 ?F capacitor, What is the peak voltage across the capacitor
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. What is the volume of the object
An outfielder throws a 0.150 kg baseball at a speed of 20.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball
A horse races once around a circular track in a time of 118s, with a speed of 17 m/s. What is the radius of the track? How do you go about solving this.
23g of copper pellets are removed from a 300?C oven and immediately dropped into 70mL of water at 23?C in an insulated cup
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