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A hardworking ant must supply 0.0500 N to pull a small piece of fruit at constant velocity over a distance of 8.00 cm up a small hill to the entrance of the colony. If the coefficient of kinetic friction between the piece of fruit and the 15.8° sloped hill is 0.500, calculate the work done by the ant by pulling the piece of fruit up the hill.
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.)
At one time, television sets used "rabbit-ears" antennas. Such an antenna consists of a pair of metal rods. The length of each rod can be adjusted to be one-quarter of a wavelength of an electromagnetic wave whose frequency is 125 MHz. How long is ea..
An airplane is travelling horizontally with a speed of 50 m/s 500m above the ground. How long will the package take to strike the ground
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
Suppose you lower the object a distance 0.246 m (in the same direction the field is pointing). What is the work done by the electrical force
Light of wavelength 5.0*10^-7 m in air is incident normally (perpendicular) on a doubled slit. The distance between the slit is 4.0*10^-4 m, Caculate the line density in slits/mm of the diffraction grating
An airplane has an effective wing surface area of17m2that is generating the lift force. What is the weight of the plane
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis, What is the radius of a chamber
When a current of 2.0A flows in the 100-turn primary of an ideal transformer, this causes 14 A to flow in the secondary. How many turns are in the secondary
A large air-filled 0.247-kg plastic ball is thrown up into the air with an initial speed of 11.3 m/s. What fraction of its original energy has been lost to air friction
A cannon, placed in the valley, fires a shell at 52 degrees with respect to the horizontal line. The initial speed of the shell is 516 m/s, Calculate the range of the shell
A ladder 2.05 m long, weighing 229 N, initially lies flat on the ground. The ladder is raised to a vertical position. Compute the work done by the force lifting the ladder
Two 4.0cm x4.0cm square aluminum electrodes, spaced 0.70mm apart are connected to a 400V battery. What is the charge on each electrode
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