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A 17-kg suitcase falls from a hot-air balloon that is floating at a height of 333 m above the surface of Earth. The suitcase has an initial speed of 0 m/s however it reaches a speed of 26 m/s just before it hits the ground. Compute the percentage of the initial energy that is "lost" to air resistance.
A rocket is launched at an angle of 59° above the horizontal with an initial speed of 97 m/s. The rocket moves for 3s along its initial line of motion with an acceleration of 28m/s2.
A group of physics students are conducting an experiment in projectile motion. They want to launch a ball into a bucket that is 8 meter away from their spring loaded launcher. Find the time of flight for the ball in their experiment
A broken spaceship is located 10 km above the center of a large circular thin sheet of unknown dust. The sheet has a radius of 10^6km and a density of 7x10^11kg/m^2.
atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. How high is the mercury in the barometer
A crane drops a 1.0 kg steel ball onto a steel plate. The balls speed just before impact is 2.0m/s. what is the bounce back speed right after the impact
What is the similarity theorem of Fourier Transforms. Make up an example based on the boxcar function. Sketch your example and write the mathematical formulas for that example.
q1. find flux due to a point charge q on a rectangle of sides l x b at a distance r from the charge along the center of
a certain piano string and an a440 tuning fork heard together give 3 beats per second. what are the 2 possible values
A 40-kg football player leaps through the air to collide with andtackle a 60-kg player heading toward him, also in the air. what is the speed and direction of the tangled players
There is a uniform charge distribution of lambda=7.65*10-8 C/m along a thin wire of length L=5.67 cm. compute the magnitude of the electric field at the center of the semicircle
A dartboard with a mass of 2.2kg is suspended from the ceiling such that it is originally at rest. A 0.030kg dart is thrown at the dartboard with a velocity of 1.2m\s. After the dart hits the dartboard, the dart and the board initially move by a velo..
A racquetball with a diameter of 5.6 cm and a mass of 42 g is cut in half to make a boat for American pennies made after 1982. How many pennies can be placed in the racquetball boat without sinking it
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