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A 86 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 380N. For the first 16m the floor is frictionless, and for the next 16m the coefficient of friction is 0.23.
What is the final speed of the crate?
An anchor holding a boat stationary on a river forms a 65 degree angle with the river bottom. The anchor line is 40 meters long. Assume the river has a uniform depth, how deep is the river directly below boat.
You apply a constant force F? =(?68.0N)i^+(36.0N)j^ to a 400kg car as the car travels 47.0m in a direction, How much work does the force you apply do on the car
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 145 km/h. exactly 2.5 s after the speeder passes, police officer steps on accelerator; if the police car's acceleration is 2.10m/s^2.
Calculate approximately E at a distance of 40 m (large relative to the plate size) by assuming that the plate is a point charge.
The square loop shown is made of wires with a total series resistance of 10 W. It is placed in a uniform 0.100-T magnetic field directed perpendicular into the plane of the paper.
the coyote accidentally runs off the edge of a cliff and plummets to the ground 30.0 m below. Illustrate what force does the ground exert on the coyote as he makes a coyote-shaped dent 0.420 m deep in the ground?
a person pulls on a 50Kg desk with a 200N force acting at 30 angle above the horizontal. the desk does not budge. draw a force diagram for the desk. Write down the equation that describes the forces which act in the x-direction.
Calculate the velocity of the object for an elapsed time of t=1s. Use the formula v=v0+at, these use the v0,and the value for acceleration you determined in previouse step. PROBLEM:V=Vo+at Vo is 3.8 m/s a=1.2m/s^2
the volume of a gas is decreased by a constant external pressure of 0.200atm, changing from 2.10 litters to 0.58 litters. during this compression
What diameter has the tip of the minute hand with 100mil/hr tangential speed? Illustrate what diameter has the tip of the hour hand with 100mil/hr speed?
Use the binomial expansion to find an approximate expression
Two point charges lie along the y-axis. A charge of q1 = -9.5 ?C is at y = 6.0 m, Locate the point (other than infinity) at which the total electric field is zero
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