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A hardworking ant must supply 0.00655 N to pull a small piece of fruit at constant velocity over a distance of 10.00 cm up a small hill to the entrance of the colony. If the coefficient of kinetic friction between the piece of fruit and the 18.4° sloped hill is 0.400,
calculate the work done by the ant by pulling the piece of fruit up the hill.
W=_______J
Use the work-energy theorem to calculate the mass of the piece of fruit in grams. (The acceleration due to gravity is 9.81 m/s2.)
m=_______g
Two cars travel in the same direction along a straight highway, How far must the faster car travel before it has a 15-min lead on the slower car
The magnetic field 7.5 cm directly above the center of a 25-turn coil of radius 15cm is 0.80mT. obtain the current in the coil
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. What is the average net force (magnitude and direction) exerted on the ball by the cushion
A certain freely falling object, released from rest, requires 1.90 s to travel the last 36.5 m before it hits the ground. Find the total distance the object travels during the fall
A projectile is launched perpendicularly upward from a planet of mass M; and radius R; its initial speed is twice the escape speed. Derive an expression for its speed as a function of the distance from the center of the planet.
You are standing at a red light on SW 8th Street at 97th Avenue. The light turns green, find the work done on your car by the frictional force
An isolated hollow spherical conducting shell has a charge of 10^-6 C. In some manner, a point charge of 3*10^-6 C is placed inside the cavity of the shell,find the charge on the inner surface of the shell
A 240 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.20, Calculate the power dissipated by 100 of them.
q1. a wheel is spinning clockwise at a 12.0 revolutions per second at t 0. because of friction in the bearings
A certain light source is found to emit radiation whose peak value has a frequency of 1.83E+15 Hz. Calculate the temperature of the source
A simple gaussmeter for measuring horizontal magnetic fields consists of a stiff 42 cm wire that hangs from a conducting pivot, What is the equilibrium angular displacement of the wire from vertical if the horizontal magnetic field is 0.04 T and the..
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. how many turns are in the secondary coil
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