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An 8.50 kg point mass and a 12.5 kg point mass are held in place 50.0 cm apart. A particle of mass is released from a point between the two masses 18.0 cm from the 8.50 kg mass along the line connecting the two fixed masses.
(a) Find the magnitude of the acceleration of the particle.
A highway engineer wants to design a horizontal turn so that a car with mass 623 kg can go 16.8 m/s around curve. what is the smallest radius she can make the turn
In coming to a stop, a car leaves skid marks 81 m long on the highway. Assuming a deceleration of 4.30 m/s 2 , estimate the speed of the car just before braking
A 2.00 m brass rod with a 1.00 mm diameter is used as a spring by stretching the rod. If the tensile modulus of brass is 9.10 1010 N/m2, then the spring constant of the rod is
If an isolated conducting sphere 8.9 cm in radius has a net charge of 6.8 ?C and if V = 0 at infinity, what is the potential (in V) on the surface of the sphere
A 237 kg cart runs into the rear end of a 120 kg cart that is stationary. What is the speed of the moving cart before the collision
A small ball is located at the origin and has as charge of +3.9 nC. At a distance of 5.8 cm the electric field has a magnitude of 10422 N/C. What is the direction of the electric field, away or toward the ball
In a certain time, light travels 4.78 km in a vacuum. During the same time, light travels only 2.37 km in a liquid. What is the refractive index of the liquid
A circuit contains six 210 lamps and a 14 heater connected in parallel. The voltage across the circuit is 120V. If the circuit has a 12A fuse, will the fuse melt if all the lamps and the heater are on.
An air-filled toroidal solenoid has a mean radius of 15.5cm and a cross-sectional area of 4.95cm2, How many turns does the winding have
A copper rod of length 0.78 m is lying on a frictionless table (see the drawing). What must be the direction of the current in the copper rod
Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for 472.9 and 696.0 in the visible spectrum. What is the minimum thickness of the film.
Mercury makes one complete orbit of the Sun every 0.24 years. Calculate the radius of the orbit of Mercury
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