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Tarzan, with a mass of 80.0 kg, wants to swing across a ravine on a vine, but the cliff on the far side of the ravine is 0.900 m higher than the cliff where Tarzan is now, and 1.80 m higher than Tarzan?s lowest point in his swing. Use g = 9.80 m/s^2. How fast is Tarzan going at the bottom of his swing?
A 10.0-kg mass is placed on a 25.0o degree incline and friction keeps it from sliding. What is the frictional force while the mass is sliding
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
How many joules of kinetic energy does a 750 automobile traveling at a typical highway speed of 65 have.
A 2500 kg satellite is to be launched and put in orbit at 750km above the surface of the earth. What gravitational force will the satellite experience? How fast is the Satellite traveling in orbit?
The index of refraction for violet light in silica flint glass is 1.66 and that for red light is 1.61. What is the angular dispersion of visible light
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection
You have a 200 resistor, a 0.400 H inductor, a 5.00 F capacitor, and a variable-frequency ac source with an amplitude of 3.00 V. At what frequency will the current in the circuit be greatest
a car moving at 80 km/hr is brought to a stop in 5 seconds. How far did the car travel while stopping
A 23 kg child goes down a straight slide inclined 38? above horizontal. The child is acted on by his weight, How large is the normal force of the slide on the child
Two 10-cm-diameter charged rings face each other, What is the electric field at the center of the left ring
The energies associated with molecular rotation and vibration are quantized and photons can be emitted or absorbed by molecules making transitions from one rotational or vibrational state to another.
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
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