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A projectile is fired at 30° above the horizontal. Any effects due to air resistance are negligible. At the highest point in its trajectory, its speed is 165 m/s. What is the horizontal component of the initial velocity?
A 3m-long rigid beam with a mass 140 kg is supported at each end. An 75 student stands 2m from support 1.
One mole of ideal monatomic gas undergoes the cycle, consisting of an isothermal process AB at temperature 400 K, an isobaric process BC, Find the work done for the entire cycle
Pete slides a crate up a ramp with constant speed at an angle of 27 degrees by exerting a 133 N force parallel to the ramp. How much work has been completed against gravity when the crate is raised a vertical distance of 1.6 m? The coefficient of fri..
A 91 crate, starting from rest, is pulled across a floor with a constant horizontal force of 390. What is the final speed of the crate
A 97.1-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s. Find the angular velocity of the platform with its load
in a historical movie two knights on horseback start from rest 99 m apart and ride directly toward each other to do
An air-filled spherical capacitor is constructed with inner and outer shell radii of 7.00cm and 14.0cm, respectively. Calculate the capacitance of the device
The wavenumber of the incident radiating in a Raman spectrometer is 20487 cm-1. What is the wavenumber of the scattered Stokes radiation
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.875 rad/s. You, with a mass of 72.3 kg, Calculate the total angular momentum of the system.
A 1400 wrecking ball hangs from a 20 -long cable. The ball is pulled back until the cable makes an angle of 30.0 with the vertical. By how much has the gravitational potential energy of the ball changed?
Peter, a 100kg basketball player, lands on his feet after completing a slam dunk and then immediately jumps up again to celebrate his basket. What is the impulse exerted on Peter during this 0.50s
Discuss how big is a physical protocol data unit and determine the number of simultaneous transmissions for many network architectures.
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