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A circular disk of radius 0.010 m rotates with a constant speed of5.0 rev/s. What is the acceleration of a point on edge of the disk?
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of 9.20 cm. how long does it take a ripple passing the cork to reach the shore
what is the magnitude of its velocity after the collision. A soccer player applies a force of 60.5 N to a soccer ball while kicking it. If the ball has a mass of 0.42kg, what is the acceleration of the soccer ball.
A 1.0-kg copper rod rests on 2 horizontal rails 1.0 m apart and carries a current of 50 A from 1 rail to the other.the coefficient of static friction is 0.60.What is the smallest magnetic field (vertical) that would cause the bar to slide with accele..
A 52dB sound wave strikes an eardrum whose area is 5.0×10?5m^2 . a)How much energy is received by the eardrum per second? b)At this rate, how long would it take your eardrum to receive a total energy of 7.0J?
A copper plate has a length of 0.12 m and a width of 0.10 m at25 degrees C. What is the change in the area of the plate as aresult of the increase temperature
A person pushes the shopping cart with a force of 100 N acting down at 45 degrees. Of the cart travelled at a constant speed of 1.00 meters per second what is the value of combined retarding force acting horizontally on the cart due to friction an..
A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 2.80 s for the ball to reach its maximum height. Find the ball's initial velocity
two unknown charges attract each other with a force of 4.0 n when they are 4.1 m apart. find the force in n between
the 1994 winter olympics include theaerials competition in skiing. in this event skiers speed down aramp that slopes sharply upward at the end. what isthe skiers launch speed
Find the electric energy density between the plates of a 225 μF parallel-plate capacitor. The potentialdifference between the plates is 345 V, and the plate separation is0.300 mm.
50 g of gasoline are mixed with 38 g of water. What is the average density of the mixture
A 4900 kg lunar lander is in orbit 60 km above the surface of the moon. How much work must the thrusters do
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