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A sphere is spinning with a constant angular velocity. A 371 N force is applied at the axis of rotation. A rotating body has an angular acceleration of 9rad/s 2. A 3175 N force is applied 6 cm from the axis of rotation and is parallel to the lever arm. A force is applied 47 cm away from the axis of rotation and is perpendicular to the lever arm.
The "reaction time" of the average automobile driver is about 0.7 s. Compute the total distance covered in coming to a stop after a signal is observed from an initial velocity of 15.6 mi/h
A bottle containing 3.4 kg (mass) of water at a temperature of 23.4 oC is placed in a refrigerator where the temperature is kept at 3.2 oC
A 640- hollow ball 25cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz .What is the torsional constant of the wire?
A small immersion heater is rated at 950 W. Estimate how long it will take to heat a cup of soup (assume this is 250 mL of water) from 17 degrees C to 77 degrees C.
An air-track glider attached to a spring oscillates with a period of 1.50 seconds. At t = 0, the glider is 4.40 cm left of the equilibrium position and moving to the right at 31.9 cm/s. What is the phase constant?
A new type of personal scale is designed where the person stands on top of a platform supported by a rubber cylinder which has a radius of 5 cm and a height of 10 cm. What is the mass of the person
Suppose you have a 1000 kg weather satellite that you would like to put into circular orbit 300 km above earth. How much work is required to place the satellite into orbit
Find the basic and actual transmission losses between two antennas separated by 30 meters operating at 10 MHz when the gain of each antenna is 1.65 dB
A microwave transmitter emits electromagnetic waves of a singlewavelength. The maximum electric field 1.22 km from the transmitteris 6.74 V/m. Calculate the total power emitted by the transmitter
4.10g of nitrogen gas at 20.0 C and an initial pressure of 2.70 atm undergo an isobaric expansion until the volume has tripled. The gas pressure is then decreased at constant volume until the original temperature is reached. What is the gas pressur..
After a day of testing race cars, you decide to take your own 1478 kg car onto the test track. While moving down the track at 11.7 m/s, you suddenly accelerate to 28.8 m/s in 12.6 s. What average net force have you applied to the car during tha..
You have a pulley 11.8 cm in diameter and with a mass of 1.6 kg. You get to wondering whether the pulley is uniform. What is the moment of inertia if the pulley is uniform
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