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A ball is thrown directly downward, with an initial speed of 8.75 m/s, from a height of 30.4 meter. Find after what time interval does the ball strike the ground?
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0190 kg and is moving along the xaxis with a velocity of +4.63 m/s.
when a ball rolls down a incline plane it gains speedbecause of gravitywhen rolling up it losees speed because of
A 1.2-kg mass suspended from a spring of spring constant 22 N.m-1 executes simple harmonic motion of amplitude 5 cm. What is the speed of the mass when the spring is stretched 2.5 cm from its equilibrium position?
An 18.0g arrow is fired into a 3.00kg pumpkin suspended on a string. Calculate the velocity of the arrow just before it enters the pumpkin
In the isothermal compression of an ideal gas, the volume occupied by the gas is decreasing, but the temperature of the gas remains constant. In order for this to happen, A. heat must enter the gas. B. heat must exit the gas. C. no heat exchange shou..
A uniform rod rotates in a horizontal plane about a verticalaxis through one end. find the angular momentum of the rod about that axis
Three equal point charges, each with charge 1.30 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.600 m. Evaluate the electric potential energy U of the system?
The Hall effect can be used to determine the density of mobile electrons in a conductor. Find the density of mobile electrons in the material
A 245 turn coil has an area of 3.3 cm2 and rotates in a magnetic field of 0.5 T. What frequency will generate a maximum emf of 10 V
A current of 1.00 Amperes is maintained in a simple circuit with a total resistance of 3.00 ohms. How much heat is generated in 4.00 s
question derive the expressions to find the wavelength of a particle of mass m and charge q accelerated through a
A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. What is the total distance L between object and image
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