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A baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle (r=11m) as the carousel turns. The coefficient of static friction among the suitcase and the carousel is 0.760, and the angle is 36°. How much time is needed for your suitcase to go around once?
q1. a 23 g ball is fired horizontally with initial speed toward a 110 g ball that is hanging motionless from a 1.1m
A neutron at rest decays into a proton with a decay energy of Q=0.782 MeV. Find maximum kinetic energy of the residual proton
A pitcher throws a 0.145-kg baseball to a batter at 36 m/s. The batter hits the ball straight back at the pitcher at 49 m/s. The amount of time that the bat and ball are in contact is 9.0E-3s. What is the force (in N, assumed to be constant) among th..
A damped mass-spring system oscillates at 140 Hz. The time steady of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is after that 86 J.
A tennis ball gun launches tennis balls at 17.6 m/s . It's pointed straight up and launches one ball; 2.0 s later, it launches a second ball. I already found - At what time (after the first launch) are the two balls at the same height? = 2.8s What..
Zinc has a density of 7.14 g/cm3, and the mass of a zinc atom is 1.09 10-25 kg. What is the distance between the centers of adjacent atoms
An electron that has a horizontal initial speed of 4.50 106 m/s enters a region that has anelectric field of 120 V/m pointingvertically upward. How long does the electron take to travel19 cm in the horizontal direction?
If an X-ray beam of wavelength 1.4 × 10-10 m makes an angle of 30° with a set of planes in a crystal causing first order constructive interference, what is the plane spacing
for a system with an undamped natural frequency of 100 hz and a damping ratio of 0.05 what is the maximum frequency of
a glider on an air track carries a flag of length l through a stationary photo gate which measures the time interval
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
A house painter stands 3 m above the ground on a 4.9-m-long ladder that leans against the wall at a point 4.7 m above the ground. find the force of friction that the driveway exerts on the bottom of the ladder
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