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A 44-N crate is suspended from the left end of a plank. The plank weighs 21 N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.30 m from the left end of the plank. How far to the right of the support is the plank's center of gravity?
Two cars are on the highway and moving at speeds of v1 = 14.5m/s and v2 = 70.2m/s. What is the frequency of the second car's engine
Calculate the y-component of the magnetic force. How fast must the candy bar travel to have the same joules in the form of kinetic energy.
a bullet is fired through a board 14.0 cm thick with its line of motion perpendicular to the face of the board. if it
two objects attract each other with a gravitational force of magnitude 1.01 x 10-8 n when separated by 19.9 cm. if the
A spherical navigation buoy is tethered to the lake floor by avertical cable. Determine the tension in the cable
why do you think that it takes a significantly stronger electric field strength to move the beam of alpha particles
a scaffold of mass 61 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. a
A cart has a mass of 851.8 g the attached string has a tension of 0.36 N and a displacement of 40.9 cm. what is the kinetic energy of the cart
an electron is accelerated by a constant electric field of magnitude 290 nc. a find the acceleration of the electron. b
Two charged particles, q1 = ?2.50×10?3 C and q2 = +3.850e-3 C, are separated by a distance of 5.00 cm. What is the electric potential energy of this configuration
A bolt on an engine is to be tightened with a maximum torque of 75 Nm. If a wrench has a length of 0.30 m, what is the maximum force perpendicular to the length that should be used to tighten the bolt?
In 1993, Javier Sotomayor set a world record of 2.45 m in the men's outdoor high jump. He is 193 cm tall, determine his takeoff speed
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