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An object with mass m= 6.5 kg, is moving with a constant velocity along the y axis V0=8.4 m/s. Suddenly, a force along the x axis F=11.5-17*t N acts on the object. What is the acceleration at t=3 s? When is the acceleration zero? What is the velocity of the object along the x direction after 10 s? What is the velocity of the object along the y direction after 10 s?
Suppose that a person in Tilted Land throws a ball straight up at 20 m/s. Where does the ball hit the ground?
A string is wrapped many times around a pulley and is connected to a block with mb = 5.711 kg that is hanging vertically. What is the magnitude of the acceleration of the block
A person with perfect pitch sits on a bus bench listening to the 450{\rm Hz} horn of an approaching car. how fast is the car moving
A 2 meter wire carrying 1 A of current is at a 90 degree angle to a magnetic field. If the current feels a force of 1 N from the magnetic field, what is the strength of the field
You are setting up two standing string waves. You have a length of uniform piano wire that is 6.0m long and has a mass of 0.150kg . You cut this into two lengths, one of 2.6m and the other of 3.4m , and place each length under tension. What should..
according to the bureau of labor statistics the average hourly wage in the us was 22.57 in may 2010. a random sample
What average force is required to stop an 1100-kg car in 8.0 seconds if the car is traveling at 95 km/h
Your company makes anemometers and plans to install light bulbs on them for high wind warnings. calculate the number of turns in the coil wire needed to light the bulb
a vehicle covers 600m on a compass bearing of 47 degrees,then 500m bearing 128 degrees; Determine the resultant displacement of the vehicle
imagine a hole is drilled down to the center of the earth. a small mass m is dropped into the hole. find the speed of the mass just as it reaches the earth's center
A wheel rotating about a fixed axis has an angular position given by q = 3- 2.0t3, where q is measured in radians and t in seconds. What is angular acceleration of the wheel at t = 2.00s.
A stone is thrown straight up with a speed of 25.0 m/s from the top of a building 55.0 m tall. How far above the ground will the stone go
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