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It takes 180 Joule of work to compress a certain spring 0.18 meter. Estimate what the force constant of the spring? To compress the spring an additional 0.18 meter, does it take 180 Joule, more than 180 Joule, or less than 180 Joule?
At what time after the discharge begins is the energy stored in the capacitor reduced to half its initial value? RC=3ms (timeconstant for capacitor to discharge)
q1. a book with a mass of 2.0 kg is held in equilibrium on a board with a slope of 60.0 degrees by a static frictional
A 4.50 g} bullet is fired horizontally into a 1.10 kg} wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.200. The bullet remains embedded in the block, which is observed to slide 0.200..
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
A block of mass 0.14 kg is placed on a vertical spring of constant 5723 N/m and pushed downward, compressing the spring 0.08 m. What height above the point of release will the block reach
a 0.005 kg. bullet is fired at 300 ms east into a 10 kg. block of wood at rest. if the bullet sticks into the wood what
An RL series circuit has R= 78.0? and L= 2.00mH. The series combination is connected across a 165V(rms), 65Hz power supply. Find the impedance of the RLcombination
The rear axle of a truck is 2.5 m long. If the truck is moving at 28 m/s and the vertical component of the earth’s magnetic field is 3.2 *10^-5T, what emf is induced between the ends of the axle?
A circuit consists of one DC power supply providing 20 V and four resistors R1 = 10 Ohm, R2 = 20 Ohm, R3 = R4 = 40 Ohm. Calculate the total power provided by the power supply
The air pressure inside the tube of a car tire is 431 kPa at a temperature of 14.5 °C. What is the air pressure inside the tube
In a television tube, electrons inillially at rest are accelerated by a uniform electric field of magnitude 4 * 10 exp 5 N/C during the first 5 cm of the tube's length, find the speed of the electrons when they hit the screen
Two blocks of masses 1.0 kg and 3.0 kg connected by a spring rest on a frictionless surface. what is the velocity of the second
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