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An arrow of mass 20 gram is shot horizontally into a bale of hay, striking the hay with a velocity of 60 m/s. It penetrates a depth of 20 centimeter before stopping. Obtain the average stopping force acting on the arrow?
A nuclearpower planthas a reactor that produces heat at the rate of870MW. At what rate is heat discarded to the environment by this power plant
Three 10.53-g Styrofoam balls of radius 2 cm are coated with carbon black to make them conducting, Determine the absolute value of q
Rhea, one of Saturn's moons, has a radius of 765 km, Calculate its mass and average density
The index of refraction for red light in water is 1.331, and thatfor blue light is 1.340. If a ray of white light enters the waterat an angle of incidence of 88.20°, what are the under water angles ofrefraction for the blue and red components of the ..
A 20 cm × 20 cm × 20 cm box contains 0.038 mol of nitrogen at 27degreeC. Find the rate of collisions on one wall of the box
the froghopper philaenus spumarius holds the world record for insect jumps. when leaping at an angle of 58.0degree
Suppose we have a cube of resistors (12 resistors total) all the same resistance R connects as in the figure to left. Find the equivalent resistance between the two diagonally opposite corners
A bowling ball (solid sphere mass=7.27 and radius=12.7cm) is rolling on level ground at a constant angular speed of 55rad/s. what is the total kinetic energy of the ball?
Find the electrical and gravitational forces between the proton and electron in a hydrogen atom. Which force holds it together
A circular loop of wire of radius 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is perpendicular to the magnetic field
a 2.00m by 3.00m plate of aluminum has a mass of 324kg. What is the thickness of the plate
Measuring distances to high precision is a critical goal in engineering. Numerous devices to exist to perform such measurements, with many involving laser light. How far was the laser originally from the object
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