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A baseball is hit with a speed of 30.0m at an angle of 41. It lands on the flat roof of a 11.0 -tall nearby building.
If the ball was hit when it was 1.2m above the ground, what horizontal distance does it travel before it lands on the building?
An electron with kinetic energy 1.52 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 22.0 cm, Find the frequency of circling
An 80 kg skydiver falls through air with a density of 1.15 kg/m3 . Assume that his drag coefficient is C=0.57. What are the terminal speeds in both cases
A centrifuge in a medical laboratory rotates at an angular speed of 3800 rev/min. Find the constant angular acceleration of the centrifuge
A Ferris wheel with radius 38m is driven by a motor that exerts a force on the wheel 1m from the center. find the normal force at the bottom of the wheel's trajectory
A light spring of force constant k = 156 N/m rests vertically on the bottom of a large beaker of water. A 5.55-kg block of wood (density = 650 kg/m3) is connected to the spring, and block-spring system is allowed to come to static equilibrium. Wha..
A laser used to weld detached retinas emits light with a wavelength of 654nm in pulses that are 20.2ms in duration. How much energy is in each pulse
A rubber balloon filled with air is rubbed against a wool sweater and acquires a negative charge. The balloon is placed up against a flat wall and released. The balloon stays stuck to the wall. How is this possible if the wall is not charged in an..
A speed skater moving across frictionless ice at 8.1{\rm m}/{\rm s} hits a 6.0{\rm m} -wide patch of rough ice. What is her acceleration on the rough ice
Sketch and describe a floe control loop.
If the magnitude of vector A is 10.0 m and that of vector B is 12.5 m, what is the range of values allowed for the magnitude of the sum of A and B?
Two identical point charges (q = +6.90 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.45m. A test charge (q0 = -3.20 x 10-8 C), with a mass of 5.20 x 10-8 kg, is released from rest at one of the corners of the s..
What is the magnitude of the normal force. What is the total translational kinetic energy of gas molecules.
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