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10A 4:0-kg block (A) is pushed against a horizontal light spring with constant k = 4:0 104 N/m. When the spring is compressed 4:0 cm from its relaxed length, the block is released. Block A then slides across a horizontal frictionless surface and collides elastically with another block B (5:0 kg) that was initially at rest. What is the nal velocity of each block?
If the amplitude of a particle in simple harmonic motion is doubled, how are the total energy and maximum speed affected
An inductor is connected to a source of sinusoidally varying voltage with constant amplitude and a frequency of 50.0 Hz. what will be the new rms current
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 240 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes. Because of these charges, the spring..
Suppose you drop a feather and a steel ball of equal masses (0.010 kg) at the same time from a height of 1.9 m and you are told that the feather hits the floor 4.5 s after the steel ball. Estimate the feather's drag coefficient
Common transparent tape becomes charged when pulled from a dispenser. calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a 9.00 mg piece of tape held 0.80 cm above another
A 70-kg climber is hanging by a rope off the edge of a cliff, with the top end of the rope tied to a 200-kg rock. However, the rock is sitting on an icy horizontal surface,
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. What is the size of the image of the tree on your retina
1. Explain what is meant by baseband signal and baseband transmission. 2. Explain one approach for PWM modulation and detection (demodulation). Draw the required circuits and diagrams.
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
A block of mass of 4kg is dragged 2m along a horizontal surface by a force F=30N acting on a 53 degree to the horizontal. Find change in kinetic energy of the block
A 2.00-mol sample of hydrogen gas is heated at constant pressure from 302 K to 414 K. Calculate the increase in its internal energy
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