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A stone is thrown upwards from the edge of a clif 20m high. It just misses the cliff on the way down and hits the ground below with a speed of 30m/s.
a. With what velocity was it released?b. What is its maximum height above the cliff?
c. Plot ?y(t), ?v(t), and ?a(t)
A 601 kg car stopped at an intersection is rear-ended by a 1420 kg truck moving with a speed of 11.5 m/s. what is the final speed of both vehicles after the collision
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 4.41 × 10-11 m. Determine the magnitude..
A uniform plate of height 1.920 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 1.000 x2. The plate has a mass of 1.17 kg.
The accommodation limits for Nearsighted Nick's eyes are 20.0 cm and 82.0 cm. When he wears his glasses, At what minimum distance is he able to see objects clearly
A 30 kg child rides a 9 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 7 m/s. If the slope makes an angle of 15° with the horizontal, how far did she slide on the sled?
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2, What is theaverage speed over the entire trip
A transparent material has indices of refraction given by: n(violet) = 1.6231 n(red) = 1.6111 Determine the angular spread of these two colors
65 kilogram Tory skates on ice at 5.0 m/s to talk to her brother Jose who is 69 kilogram, who is standing still. As they collide and stay together find with what speed do they both move off
Two small charges with a mass of 1.0 g each are connected by a 2.0 cm long insulating rod of negligible mass. What is the dipole moment of the rod
Think the Bohr energy expression (Equation 30.13) as it applies to singly ionized helium He+ (Z = 2) and an ionized atom with Z = 4 and only a single electron orbiting the nucleus. This expression predicts equal electron energies for these two specie..
A very long, straight cylindrical conductor with radius R and length L carries a uniformly distributed net charge Q. What are the bound surface charge densities at r = 2R and at r = 4R
A positive charge of 0.900? C is located in a uniform field of 1.05×105 N/C. How close are the two charges
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