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Question: A ball is thrown vertically upwards at 19.6 m/s. For its complete trip (up and back down to the starting position),
Question I: Find its average velocity?
If possible just a brief explanation how you got its average velocity?
A 2.50 x 10^-6 F capacitor is charged to 754V and a 6.80 x 10^-6 F capacitor is charged to 563V, Determine the potential difference across the second capacitor
A transverse periodic wave is represented by the equation y(x, t) = 2.50 cm cos(2,500 rad/s t - 15.0 m-1 x). What is the frequency of the vibration of the wave
An outboard motor for a boat is cooled by lake water at 14.7°C and has a compression ratio of 14.9. Assume that the air is a diatomic gas. Calculate the efficiency of the engine's Otto cycle
Make use of the data in appendix B to determine how much the volume of the water will change. For a tank diameter of 2 ft, would the corresponding change in water depth be very noticeable
A toy racing car moves with constant speed around the circle. When its coordinates are x = 0, y = 3m its velocity is (6m/s) i. When itis at x = -3m, y = 0m what is its velocity and acceleration? Usingi, j, k notation to give answer.
Arie van Wijngaarden shoots a puck at his goaltender father. Arie stands 30 meters from a net having dimensions 3 meters x 2 meters. Assuming his father obscures 1/3 of the net,
A 2 kg book rests on a frictionless, horizontal surface. Acord attatched to the book passes over a pulley whose diameter is.150m, find The moment of inertia of the pulley about its rotation axis
A woman is reported to have fallen 139 ft from a building, landing on a metal ventilator box, which she crushed to a depth of 30 in. She suffered only minor injuries.
a laser having an internal loss per round-trip of 0.015 when pumped at three times threshold has an output power of 4w.
A vertical straight wire carrying an upward 40-A current exerts an attractive force per unit length of 8.8*10-4 N/m on a second parallel wire 5.0cm away. What current (direction and magnitude) flows in the second wire?
Potassium has a work function of 2.21 eV. What is the maximum kinetic energy of electrons escaping from a sample of potassium if photons of frequency 6.00×1014 Hz strike it?
question the gas inside a flexible container e.g. a balloon is allowed to expand against a constant external pressure
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