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A tire is filled with air at 15°C to a gauge pressure of 210 kPa. If the tire reaches a temperature of 37°C, what fraction of the original air must be removed if the original pressure of 210 kPa is to be maintained?
A boat in a storm is subject to a force of 1750 N at 0.00 degrees and 1640 N at 145 degrees. How much of a third force and in what direction must be exerted to make the net force zero
What is the kinetic energy of a 1,500 kg car with velocity of 72.0 km/hr? How much work must be done on the car to bring it to a complete stop.
What was the bullet's flight time. A marble is thrown horizontally with a speed of 11 m/s from the top of a building. When it strikes the ground, the marble has a speed that makes an angle 38° with the horizontal. From what height above the ground..
A flywheel is rotating initially with an angular velocity of 3.0 rad/s clockwise. Sometime later it is rotating with an angular velocity of 8.0 rad/s counterclockwise. What is the direction of the angular acceleration
A string of linear density 1.60 g/m is stretched between clamps 48.0 cm apart. the string does not stretch appreciably as tension in it is steadily raised from 15.0 N at t = 0 to 25.0 N at t = 3.50 s. Find the number of oscillations it completes du..
A pendulum is made by letting a 3 kg object swing at the end of a string that has a length of 2.0m. The max angle the string makes by vertical as the pendulum swings is 30degrees. What is the speed of the object when it’s at 15degrees?
27 g of copper pellets are removed from a 300 degrees c oven and immediately dropped into 90 ml of water at 22 degrees
The space shuttle is in a 300-mile-highorbit. Calculate What is the shuttle's orbital period
Very fine smoke particles are suspended in air. The translationalrms speed of a smoke particle is 2.65*10-3 m/s, and the temperature is316 K. What is the mass of a smoke particle?
two point charges are placed along a horizontal axis with the following values and positions 2 microc at x 0 cm and -
A light bulb is rated at 60 W when connected to 120V. What current flows through the bulb in this case
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. Find the force acting on the board by the tailgate
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