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A catapult launches a rock at at 50 degree angle with respect to the horizontal. Find the maximum height attained if the speed of the rock at its highest point is 26m/s.
Starting from rest, a 12-cm-diameter compact disk takes 3.3s to reach its operating angular velocity of 2500rpm. How much torque is applied to the disk
find the mass defect (in u) for (a) helium-3 (2He3), which has an atomic mass of 3.016 030 u, and (b) the isotope of hydrogen known as tritium (1T3), which has an atomic mass of 3.016 050 u.
Estimate the phase difference between the sounds received by your ears when you are facing 90° away from the direction of the source
An infinitely long line of charge has a linear charge density of 4.50×10?12 C/m. How close does the proton get to the line of charge
A uniform 210N ladder rests against a perfectly smooth wall, making a 40.0 degrees angle with the wall. Find the normal forces that the wall exert on the ladder
A laser emits a narrow beam of light. The radius of the beam is 1.5 mm, and the power is 2.9 mW. What is the intensity of the laser beam
One end of a long rod (n=1.5) is formed into a convex surface with a radius of curvature of 6cm. Find the image and object focal lengths, f' and f, and mark the locations of the foci in your to-scale sketch
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
A solid uniform marble and a block of ice, each with the same mass, start from rest at the same height, Which object is moving faster at the bottom, the ice or the marble
Professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph (miles per hour). how much kinetic energy does the ball have
A proton in Fermilab's Tevatron is accelerated through a potential difference 2.06 MV during each revolution around the ring of radius 1.00 km. how many revolutions must the proton make
Consider a series RLC circuit with R = 15 , L = 184 mH, C = 75 µF, and a maximum voltage of 141 V. What is the resonance frequency of the circuit
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