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A mechanic pushes a 3.60 x 103 kilogram van from rest to a speed of v, doing 4800 Joule of work in the process. During this time, the van moves 24.0 meter. Ignore friction between road and van, determine each of the following.
(a) the speed v
m/s
(b) the horizontal force exerted on the car
N
A 1000N beam is loaded with a 2000N filing cabinet and supported by two cables. If the beam is 8 meters long and the filing cabinet is 2 meters from the left cable, what is the tension force in each cable? total of both tension? tension in left cable..
In an L-C circuit, C=3.21*10^-6 F and L=86.0mH. What is the magnitude of the charge on the capacitor at an instant when the current in the inductor has a magnitude of .501mA
In a constant-volume process, 205 J of energy is transferred by heat to 0.94 mol of an ideal monatomic gas initially at 309 K. find the increase in internal energy of the gas
A ball of mass 8.0 kg is suspended by two wires from a horizontal arm, which is attached to a vertical shaft, What are the tensions in wires 1 and 2
Let be the magnitude of the kinetic energy of puck A at the instant it reaches the finish line. Likewise, is the magnitude of the kinetic energy of puck B at the (possibly different) instant it reaches the finish line.
A 36.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
sound with frequency 1220 leaves a room through a doorway with a width of 1.16 . at what minimum angle relative to the
A thin disk of uniform density, mass 5kg and radius :25m, rests on a frictionless table. Find the linear and angular speed of the disk clay system after the impact
a spacecraft engine creates 55.1 mn of thrust with a propellant velocity of 4.88 kms. a find the rate dmdt at which the
A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. What is the speed of the waves on the string
A string of a violin is 32 cm long between fixed points with a fundamental frequency of 440 Hz and a mass per unit length of 7.2 x 10-4 kg/m. What are the wave speed and the tension in the string
to help keep his barn warm on cold days a farmer stores 832 kg of solar-heated water lf 3.35e5 jkg in barrels. for how
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