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man hanging upside down is holding a partner who weighs 604 N. Assume that the partner moves on a circle that has a radius of 8.98 m. At a swinging speed of 6.99 m/s, what force must the man apply to his partner in the straight-down position?
A 62 N force acts at 30 degrees and a second 62 N force acts at 60 degrees. What is the magnitude and direction of the force that produces equilibrium
In a particular x-ray tube, an electron approaches the target moving at 1.10 108 m/s. It slows down on being deflected by a nucleus of the target, compute the final speed of the electron
Light of wavelength 418 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33. What is the wavelength of the light in the water
A proton moves at 1.0x10^7 m/s perpendicularly to a uniform magnetic field. Determine the magnitude and direction of the field
A drone, flying 300m above ground, observes a man walking on a road in a cold night (0°C). how many photons/sec does it receive from the man and from a similar surface of road
An 18 mm wide diffraction grating has rulings of 710 lines per mm. What is the largest angle from the normal at which an intensity maximum is formed
Four charged particles are at the corners of a square of side. (Let A = 3, B = 4, and C = 5.) (a) Determine the electric field at the location of charge q.
A 5kg ball moving to the right at 6m/s strikes a 3kg initially at rest. The 5kg ball continues moving in the same direction at 2m/s. find the velocity and direction of the 3kg ball
the blood plays an important role in removing heat from th ebody by bringing the heat directly to the surface where it can radiate away. nevertheless, what is the thermal conductivity of this persons skin
A man is pulling his box that has a mass of 22 kg. What is the work done on the luggage by the lady, What is the power exerted on the box by the man
A solenoid of length 4.0 cm and diameter 0.93 cm is wound with 165 turns per cm. What is the induced emf in one of the windings
Two small plastic spheres each have a mass of 1.2g and a charge of -55.0nC . They are placed 2.6cm apart (center to center). find the magnitude of the electric force on each sphere
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