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A civil engineer is in charge of building a section of theinterstate that includes a turn whose radius is 80m What will be the maximum allowable speed on this section of the interstate?
During this process the arrow's deceleration has a magnitude of 1600 and the block's acceleration has a magnitude of 450. Explain how long does it take for the arrow to stop moving with respect to the block?
A photon has momentum of magnitude 8.15×10?28kg?m/s. What is the wavelength of this photon
You're standing in waist-deep water with your eyes 0.48m above the surface. A fish is swimming 0.65m below the surface. How far (horizontally) from you is the fish
The period of a satellite at an altitude of 200 km above the surfce of the earth is 20 hours. What is the period of a satellite that is placed at an altitude of 500 km
Attached to each end of a thin steel rod of length 1.10 m and mass 6.00 kg is a small ball of mass 1.02 kg. Compute the retarding torque due to friction
Two boats start together and race across a 72 km wide lake and back. Boat A goes acrossat 72 km/h and returnsat 72 km/h. Boat B goesacross at 36 km/h, and itscrew, realizing how far behind it is getting, returnsat 108 km/h.
A 0.600 kg ball falls directly down onto concrete, hitting it with a speed of 13.5 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
The handle of a grinding wheel goes around a circle with a circumference of 1.2m. how much work is performed each revolution
Zach, whose mass is 55kg , is in an elevator descending at 14m/s. What is Zach's apparent weight while the elevator is braking
When are the displacement, velocity, and acceleration equal to zero for the motion of a mass on a spring? A. at maximum displacement B. at minimum displacement C. at the equilibrium position D. at a displacement of 2x E.at a displacement of 1/3x.
A ball with a mass of 0.620 kg is initially at rest. It is struck by a second ball having a mass of 0.370 kg, find the change in the total kinetic energy of the two balls
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