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When the dried-up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.64 at an angle of 62.0 above the horizontal. What horizontal distance does it cover during its flight?
question1two boys are pulling a car of mass 800 kg along a level surface with a pair of ropes attached horizontally.
A cord with a mass of 500g is tied between two supports. The tension in the cord is 35N and it takes a wave 0.55s to travel from one end to the other. How long is the cord
An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..
An RL circuit has a 5 kO resistor and a 1 mH inductor. This circuit is driven by a 100 Hz sine wave with 1 V amplitude. What is the amplitude of the current in the circuit
A hoodlum throws a stone vertically downward with an initial speed of 12.2 m/s from the roof of a building, 25.0 m above the ground. What is the speed of the stone at impact
A beam of light shoots from air into a piece of glass. If the refracted angle is half of the incident angle, what is the incident angle
A Carnot engine works between two heat reservoirs at temperatures Th = 305 K and Tc = 60 K. How much heat does it give off in each cycle
a house is heated by 24 kq electric furnace using resistance heating if 9 J are used. How long was the furnace running in an acerage Jan day
A 0.481 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
assume a planet had a density that varied with radius according to the equation, ρ =A/r, where A is some constant. Determine a formula that gives the central pressure for this kind of planet.
A 0.550 {\rm kg} glider on an air track is attached to the end of an ideal spring with force constant 458 {\rm N}/{\rm m}; Compute the total mechanical energy of the glider at any point in its motion
A thin metallic spherical shell of radius 42.6 cm has a total charge of 6.95, What is the electric field at a distance of 14.4 cm from the center of the spherical shell
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