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A meter stick of mass 150 g is pivoted at its center. A mass m1 of 75.0 g is suspended 13.0 cm from the left end of the meter stick. How much mass m2 must be suspended 69.0 cm from the left end of the meter stick to achieve rotational equilibrium?
A 325-g model boat floats on a pond. The wind on its sail provides a force of 1.5 N that points 15° north of east. The drag force of the water on the boat is 0.78 N, toward the west. If the boat starts from rest and heads east for a distance of 3.4 m..
An 80 kg weightlifter is standing holding a bar weighing 981 N directly over his head. What is the GRF (ground reaction force) acting on the weightlifter's feet
A projectile is launched into the air with an initial speed of vi at a launch angle of 30 degrees above the horizontal. Calculate the horizontal distance traveled by the projectile
The electric field in a certain region is given E=ax(i hat), where a= 48N/Cm and x is the position in meters. Find the volume charge density in the region
18.53 Mars is 1.52 times farther away from the sun than the earthis and has a diameter.532 times that of the Earth. Estimate the tempreature on the surface of Mars
Logan is given an initial speed of 4.00 m/s down a 20 %u030A incline. when he reaches the bottom of the incline
The punter on a football team tries to kick a football so that it stays in the air for a long "hang time". If the ball is kicked with an initial velocity of 25.0 m/s at an angle of 60.0 degrees above the ground, illustrate what is the "hang time"?
A bottle containing 5 kg of water at a temperature of 15C is placed in a refrigerator, How much heat is transfered from the water to cool it to 1C
Ocean waves pass through two small openings, 21m apart, in a breakwater. You're in a boat 69m from the breakwater and initially midway between the openings, but the water is pretty rough. You row 37m parallel to the breakwater and, for the second tim..
its nighttime and youve dropped your goggles into a swimming pool that is 4.0 m deep. if you hold a laser pointer 1.0 m
a spool of wire of mass m250 g and radius r45 cm is unwound under a constant force f 5.0 n. assume that the spool is a
Two adjacent resonant frequencies of an organ pipe are found to be 500 Hz and 600 Hz. What is the length of the pipe
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