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Q1. A crate with mass 35.5 initially at rest on a warehouse floor is acted on by a net horizontal force of 120. What acceleration is produced?
Q2. A 18.00 kg lead sphere is hanging from a hook by a thin wire 3.60m long, and is free to swing in a complete circle. Suddenly it is struck horizontally by a 7.00kg steel dart that embeds itself in the lead sphere. What should be the least initial speed of the dart so that the combination makes a complete circular loop after the collision?
The resistance of the loop is 0.490 ohms. A magnetic field parallel to z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds. What is the size of the induced current in the loop at t = 0.470s .
A small radio operates on 3.00 V and has a resistance of 15 coulomb. At what rate does the radio use electric energy.
q1. in accordance to one estimate the first atomic bomb released an energy equivalent to 20 kilotons of tnt. if 1 ton
What is the force on the bottom of a 36.0 cm tall cylindrical beaker with a diameter o 6.0 cm with water filled to its brim, answers in N.
The bolts on a car wheel require tightening to the torque of 90 N•m. If a 30 cm long wrench is used, what is the magnitude of the force necessary when the force applied at 53° to the wrench.
A person walks into a room that has two flat mirrors on opposite walls. The mirrors produce multiple images of the person. Consider only the images formed in the mirror on the left.
The metal equilateral triangle in the figure, 20 {rm cm} on each side, is halfway into a 0.10 {rm T} magnetic field.What is the magnetic flux through triangle.
Calculate the magnetic force per meter between two such lightning bolts separated by 10 meters. (This is mainly to give a feeling for the strength of the magnetic field)
Calculate the acceptance cone angle for a fiber optic cable that has an index of 1.70 for the fiber core and a 1.47 index for the cladding. What is the acceptance cone angle
Calculate the magnitude of the gravitational force exerted on a 462-kg satellite that is a distance of 2.08 earth radii from the center of the earth. What is the magnitude of the earth's acceleration
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
The radius of the planet Saturn is 5.85x10 meters to the 7th power, and its mass is 5.68x10 kg to the 26th power. Find the density of Saturn
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