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A 4.35 kilogram ball is dropped from the roof of a building 170.2 m high. While the ball is falling to earth, a horizontal wind exerts a constant force of 13.3 Newton's on the ball. Determine what is its speed when it hits the ground?
Answer in units of m/s.
monochromatic light falls on two very narrow slits 0.050 mm apart. successive fringes on a screen 5.10 m away are 5.2
A solar cell has a light-gathering area of 10 cm^2 and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1000 W/m^2 sunlight. What is the efficiency of the solar cell
question a 1.58-kg block is held against a spring of force constant 1.25e4 nm compressing it a distance of 0.158 m. how
jet rolls onto end of runway before accelerting down runway for takeoff. at point where leaves the ground it is
A small plastic sphere charged to -10nC in held 1.0 cm above small glass bead at rest on a table. What is the maximum charge can the bead have without leaping up
A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
A wheeled cart is shoved up an inclined plane with an unknown initial speed. What was the cart's initial speed
Physicians use a high-frequency (f = 1-5 MHz) sound waves,called ultrasound, to image internal organs. What is the critical agle for sound waves in air incident on muscle
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 82.1 N, Jill pulls with 64.3 N in the northeast direction, What is the direction of the net force
two trains face each other on adjacent tracks. they are initially at rest and their front ends are 36 m apart. the
Two conductors having net charges of +18.0 µC and -18.0 µC have a potential difference of 18.0 V between them. (a) Determine the capacitance of the system. F (b) What is the potential difference between the two conductors if the charges on each are i..
Block A in the figure weighs 1.60 N and block B weighs 3.10 N. The coefficient of kinetic friction between all surfaces is 0.300. Illustrate what is the friction force on block A?
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