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A 15.0 ampere current flows through a 4.75 msection of wire, perpendicular to a 0.250 T magnetic field.What is the magnitude of the force exerted by the field on the wiresection?
A baseball outfielder throws a 0.150 kg baseball at a speed of 35.0 m/s and an initial angle of 26.0°. Illustrate what is the kinetic energy of the baseball at the highest point of its trajectory?
A 0.410 kg pendulum bob passes through the lowest part of its path at a speed of 3.13 m/s. What is the tension in the pendulum cable at this point if the pendulum is 76.2 cm long.
An engineer has designed a machine to produce electricity by using the difference in the temperature of ocean water at different depths. what is the maximum efficiency of this machine
at 22m from a sound source, the intensity level is 52dB. A: what is the level at distance of 60 B: what is the level at distance of 216m
the roller-coaster car is dragged up at the highest point where it is released passing the highest point with speed of
A small car (m1) is pushing a larger truck (m2) thathas a dead battery. What is the magnitude of the force of the car on the truck
Human skin is most sensitive to ultraviolet light of approximate wavelength 300 nm, I know the energy of the light is 6.626e-19 J. The threshold for sunburn occurs when 1 cm2 of skin absorbs about 1015 of these UV photons over an interval of seve..
find the moment of inertia of a hoop a thin-walled hollow ring with mass m and radius r about an axis perpendicular to
Light enters a container of liquid at an angle of 48° to the normal; the refracted beam makes an angle of 37° with the normal. Calculate the index of refraction of this liquid
A photoelectric effect experiment finds a stopping potential of 1.93 V when light of wavelength 200 nm is used to illuminate the cathode. what metal is the cathode made?
50 g of gasoline are mixed with 38 g of water. What is the average density of the mixture
An apparatus, shown in the the figure below, is designed to study insects at an acceleration of magnitude 958 m/s (= 97.8g). How fast does an insect move when it experiences a radial acceleration of 958 m/s2
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