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Q1. A rightward force of 302 n is applied to a 28.9 kg crate to accelerate it across the floor. The coefficient of friction between the crate and the floor if 03750. Find out the acceleration of the crate.
Q2. A 500 turn solenoid with a length of 20 cm and a radius of 3.0 cm carries a current of 3.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the same radius as the solenoid. Find when the current in the solenoid increases to 5.0 A in a period of 0.90 s.
Two force vectors point in opposite directions and have the same magnitude. If their magnitudes are 36.5 Newton’s, then what is the magnitude of their sum?
Show that the force between parallel wires carrying currents I1 and I2, both in the same direction, find the magnetic force on segment dI2 of wire 2.
Your car's 28.5 W headlight and 2.50 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume
A bullet of mass .004 kg is fired horizontally into a wooden block of mass 1.3 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.2. The bullet remains embedded in the block, which is observed to..
The Doppler effect can be used to measure flow rates in blood. A sound wave is transmitted into a vein or an artery, What is the expected frequency shift
An electric field of 490000 N/C points due west at the certain spot. What is the magnitude of the force that acts on a charge of -8.3 C at this spot.
A string has a linear density of 5.7 x 10-3 kg/m and is under a tension of 400 N. The string is 1.4 m long, determine frequency of the traveling waves that make up the standing wave
An 84.6-kg climber is scaling the vertical wall of a mountain. His safety rope is made of nylon that, How much is the rope stretched when it breaks his fall and momentarily brings him to rest
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
A space probe journeys at a constant velocity from Earth to Tau Ceti (a distance of 10.9 y) in a time of 1.5 y as measured by the probe's internal clock
On a spacecraft two engines fire for a time of 578 s. One gives the craft an acceleration in the x direction of ax = 5.33 m/s2, Calculate the magnitude of the initial velocity
A 1100kg automobile travels at 80km/h. What net work would be required to bring it to a stop
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