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A charged particle A exerts a force of 1.87N to the right on charged particle B when the particles are 18.49 mm apart. Particle B moves straight away from A to make the distance between them 21.38mm. What force (magnitude) does particle B then exert on A?
A 1200 kg car rounds a corner of radius r = 45m. If the coefficient of static friction between the tires, what is the greatest speed the car can have in the corner without skidding
At one instant a bicyclist is 49.0 m due east of a park's flagpole, going due south with a speed of 14m/s. Then 35.0 s later, the cyclist is 49.0 m due north of the flagpole, going due east with a speed of 14m/s.
A boat is heading upstream when a float is dropped overboard and carried downstream. What is the boats speed in still water
Two rocks collide in outer space. Before the collision, one rock had mass 15 kg and velocity ‹ 4300, ?2700, 2350 › m/s. what is the velocity of the other rock
A proton moves perpendicular to a uniform magnetic field. Its trajectory is a circle of radius 0.31 m with a period of 2.1 10-7 s. find the magnitude of centripetal force exerted on the proton
A particle of mass m in a three-dimensional harmonic oscillator of poterntial energy (m w^2 r^2)/2 has spectrum given by E=h bar w(2nr+l+3/2) where nr is the radial quantum number and l is the orbital angular momentum suppose the particle has charge ..
A plane flies 450 km east from city A to city B in 45.0 min and then 900 km south from city B to city C in 1.50 h. (Assume points east and points north.) what is the plane's average velocity for the total trip
An airplane with a wing span of L = 27m flies horizontally at a location where the vertical component of the Earth's magnetic field is B = 6.0 x10 -5 T.
An open-tube mercury manometer is used to measure the pressure in an oxygen tank. When the atmospheric pressure is1140mbar, what is the absolute pressure (in Pa) in the tank if the height of the mercury in the open tube is26.0cm higher than the mer..
a person of weight 80 kg jumped off a platform of height 1 m and safely landed on his feet. what is the magnitude of
A spherical shell of copper with an outer diameter of 19.0 cm floats on fresh water with one third its volume above the water's surface
a box with a weight of 50 n rests on a horizontal surface. a person pulls horizontally on it with a force of 10 n and
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