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A particle is moving with a constant acceleration of 4.0 m/s2. Its speed at t = 1.0 s is 4.0 m/s and at t = 3.0 s it is 12.0 m/s. What is the area under the position-time graph for the interval from t = 1.0 s to t=3.0 s?
In the ground state of hydrogen, theuncertainty in the position of the electron is roughly 0.10nm. how fast is the electron moving
A block with mass m = 6.0 kg is attached to two springs with spring constants kleft = 29.0 N/m and kright = 57.0 N/m. What is the effective spring constant of the two springs
A 0.36 kilogram ball moving in the +x direction at 17.8 meter per second is hit by a bat. Determine the average force exerted on ball by bat
A motorcycle traveling with a constant acceleration of 2.0 m/s sq crosses a 100 m long bridge in 4.23 sec. What was the velocity at the end of the bridge
A torque of 60 Nm producing a counterclockwise rotation is applied to the wheel about its axle. A frictional torque of 10 nm acts at the axle.If the wheel is observed to accelerate at the rate of 2rad/s2 under the influence of these torques, what i..
A ball is dropped from rest from the top of a 6.30-m-tall building, falls straight downward, collides in-elastically with the ground, How many bounces can the ball make
To make a simple microscope a student places two converging lenses of +20 D at opposite ends of a 34 cm long tube. How far should an object be placed from the objective lens
An electric heater is used to heat a room of volume 62m3 . Air is brought into the room at 50 and its completely replaced twice perhour. Heat loss through the walls amounts to approximately 850kcal/h. If the air is to be maintained at 20o C, what mi..
A pair of in-phase stereo speakers is placed side by side, 0.80 m apart. What is the lowest frequency that will produce constructive interference at your location
A wave of amplitude 0.20 meter interferes with a second wave of amplitude 0.12 meter traveling in the similar direction.Find the largest resultant amplitude that can occur
A block of wood with volume V floats in water with 0.70V submerged. In oil the block floats with 0.85V of its volume submerged. calculate the density of the wood and oil
Kim has a metal casting company which makes commemorative coins. what is the diameter in centimeters of each coin
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