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A cannonball is shot (from ground level) with an initial horizontal velocity of 37.0 m/s and an initial vertical velocity of 22.0 m/s.
What is the speed of the cannonball 3.5 seconds after it was shot?
A golfer drives a golf ball with a velocity of 100ft/sec and an angle of 45 degrees, Find the time of travel for the ball
Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface. find the magnitude and sign of the excess charge
Calculate the escape velocity for a planet that has twice the mass of Earth and is half the size of Earth
The ball thrower, who has a mass of 100 kg, can throw a 500 g ball with a speed of 10 m/s. What constant force must the athlete exert on the ball
A pendulum consists of a 3.7 kg stone swinging on a 4.4 m string of negligible mass. The stone has a speed of 8.2 m/s when it passes its lowest point. What is the greatest angle with the vertical that the string will reach during the stone's motion
A hair dryer operate at 1800 watts along with a 240 watt power resistor connected in a series. Utilizing a 120 volt source, determine the current I and resistance R of the hair dryer
You are standing on a sidewalk when a police car passes you traveling 25 m/s and sounding its siren. what is the frequency of the sirens on the police cars
A 60.0 resistor is connected in parallel with a 117.0 resistor, Find the current in the 117.0 resistor and Find the power dissipated in the 117.0 resistor
A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm. Find the inductance of this solenoid
The electric potential difference between two infinite, parallel metal plates is V. If the plates are separated by a distance L = 4.50 mm and the electric field between plates is E = 270 V/m, what is V.
A bus was initially traveling with a velocity of 50 km/hr east. Later it was observed traveling with a velocity of 100 km/h north. What was the change in velocity of the bus
questiona.if puck has a radius of 2 cm what is the ratio of angular to linear velocity for which kinetic energy of
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