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An oceanliner is heading due north with a speed of 8.5 m/s relative to the water. A small sailboat is heading 45 degrees east of north with speed of 1.0 m/s relative to the water. Find the relative velocity of the sailboat as observed by the passengers on the ocean liner.
A 2.00 m brass rod with a 1.00 mm diameter is used as a spring by stretching the rod. If the tensile modulus of brass is 9.10 1010 N/m2, then the spring constant of the rod is
Workers are dragging a 610kg block up a dirt ramp that isinclined at 13o above the horizontal. They are exertinga 5600-N force parallel to the ramp. The block is accelerating at0.49 m/s2
After falling from rest from a height of 28 m, a 0.54-kg ball rebounds upward, reaching a height of 18 m. what average force was exerted on the ball
Calculate the fuel utilization and infinite multiplication factor for a fast reactor consisting of a mixture of liquid sodium and plutonium
the first-order line of 571 nm light falling on a diffraction grating is observed at a 17.9 deg angle, at what angle will the third order be observed
Pretend a person can walk only at a certain pace no faster, no slower. If you time her uninterrupted walk across a room of known length, you can compute her walking speed.
Two runners start simultaneously from the same point on a circular 200-m track and run in the same direction. How far from the starting point will each have run at that instant
A coin 2.1 cm in diameter is held 25 cm from a concave spherical mirror of 28 cm radius of curvature. What is the diameter of the image
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
A golf ball of mass 0.045 kg is hit off the tee at a speed of 35m/s . The golf club was in contact with the ball for 3.90×10?3s. Find the impulse imparted to the golf ball
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. what is the intensity of the light wave
A pair of speakers separated by 0.700m are driven by the same oscillator at a frequency if 690Hz. an observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers.
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