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A simple pendulum is made from a 0.76-m-long string and a small ball attached to its free end. The ball is pulled to one side during a small angle and then released from rest. After the ball is released, how much time elapses before it attains its greatest speed?
A 1200 kg ore cart is rolling at 10.8 m/s across a flat surface. A crane dumps 888 kg of ore (vertically) into the cart. How fast does the cart move after being loaded with ore
A car of mass 1054 kg moves NE at 20.12 m/s, and collides with another car of mass 1233 kg moving 27.72 m/s at 20.0° E of S. find The velocity of the heavier car after the collision
a 12.8-kg monkey hangs from a cord suspended from the ceiling of an elevator. the cord can withstand a tension of 156n
A Styrofoam bucket of negligible mass contains 1.75 of water and 0.450 of ice. More ice, from a refrigerator at -14.0, is added to the mixture in the bucket, what mass of ice was added
A small object carrying a charge of -6.00 nC is acted upon by a downward force of 19.0nN when placed at a certain point in an electric field. What would be the magnitude and direction of the force
Three 4 uF capacitors are connected in parallel across the terminals of a 120 Hz generator. What is the capacitive reactance of the circuit
1. two alpha particles helium nuclei each consisting of two protons and two neutrons have an electrical potential
at its hot reservoir at 135 degrees Celsius and has a thermal efficiency of 22.0%. How much heat does the engine waste per cycle
Consider the following vector fields: C=2x(x-direction), D=5x(y-direction), F=4s(phi-direction), G=3s(s-direction), For each field which could be magnetic, calculate the current density at the origin in two different ways
an inductor that has a resistance of 70 k? is connected to an ideal battery of 48 v. 2.6 ms seconds after the switch is
A wire of initial length L0 and radius r0 has a measured resistance of 2.0 . The wire is drawn under tensile stress to a new uniform radius of r = 0.45r0. What is the new resistance of the wire
If the frequency is held constant at 1350 Hz and the length of the closed (at both ends) tube is increased from zero, sketch the tube showing this expansion of length and the position of the nodes and anti nodes for the first three resonances.
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