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A soccer player kicks the ball toward a goal that is 37.0 m in front of him. The ball leaves his foot at a speed of 28.8 m/s and an angle of 76.4 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.
A cone has radius R = 30.0 cm and is on a horizontal table. The angle formed by the height and side at the vertex = 60.0°. What is the magnitude of the net flux that enters the cone
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
Paper has a dielectric constant of K=3.7. Suppose that a typical sheet of paper has a thickness of .030 mm. Calculate the capacitance of this home-made capacitor
A violinist is tuning her instrument to concert A (440Hz). Now, when she tightens her violin strings slightly she hears 4.00 beats per second. What was the frequency of her violin
You just calibrated a constant volume gas thermometer. What is the temperature of the thermometer, when it reads a pressure of 480 kPa
Force F = (-1.0 N) + (1.0 N) acts on a particle with position vector r = (5.0 m) + (5.0 m). What is the torque on the particle about the origin
A hunter aims directly at a target (on the same level) 150 m away. If the bullet leaves the gun at a speed of 240 m/s, by how much will it miss the target
Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 450.0 N of tension. String B has a diameter of 1.2 mm and is under a tension of 800.0 N. Find the ratio of the wave speeds, va/vb, in these two strings.
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
q1. a ship sets out to sail to a point 128 km due north. an unexpected storm blows the ship to a point 148 km due east
In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. find the frequency of the vibrator
when jim abd rob ride bicycles, jim can only accelerate at three quarters the acceleration of Rob. Both start from rest at the bottom of a long straight road with constant upward slope. If rob takes 5.7 minutes to react the top, how much earlier s..
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