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The starter motor of a car engine draws an electric current of 27.0 A from the battery. The copper wire to the motor is 5.90 mm in diameter and 1.22 m long. The starter motor runs for 0.65 s before the car engine starts up.
How much electric charge passes through the starter motor?
What is the current density in the wire?
What type of information would you tell the prospective employer?. Explain how would you share be to your advantage or disadvantage?
A balloon inflated with helium (density .2 kg/m^3). If the density of air is 1.3 kg/m^3, what is the bouyant force exerted on the balloon
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
q1. the coefficient of kinetic friction between a 78kg box and a warehouse floor is 0.21. how much force is necessary
A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. at what rate does the box accelerate down the slope
A step-up transformer has 24 turns on the primary coil and 780 turns on the secondary coil. what input current and voltage are needed
A pitcher throws a curveball that reaches the catcher in 0.61 s. What is the angular displacement of the baseball
A runner performs a standing hamstring curl in 1.5 seconds with the mass of the cuff weight and the lower leg 5 kg, How much mechanical work does the runner preform
The International Space Station ISS (the mass is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth.
On a workday the average decibel level of a busy street is 78 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
A football punter accelerates a football from rest to a speed of 11 m/s during the time in which his toe is in contact with the ball (about 0.24 s). what average force does the punter exert on the ball
A 7.1-kg block of aluminum is heated from 30°C to 60°C at atmospheric pressure. Find the work done by the aluminum
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