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Problem: Two charges of equal magnitude exert an attractive force of 6.5×10-4 N on each other. If the magnitude of each charge is +2.1 µC,
Part A: How far apart are the charges?
Please show your work, so I can understand process. Thanks!
A helicopter is ascending vertically with a speed of 5.45m/s. At a height of 141m above the Earth, a package is dropped from a window. How much time does it take for package to reach the ground.
Through a cycle, a heat engine receives 2.78×104 J of heat from the hot reservoir and gives up 1.83×104 J of heat to the cold reservoir. What is the net work performed through one cycle?
vehicle 1 skidded 150 feet and crashed into vehicle 2. vehicle 2 was parked whennbspvehicle 1 struck it and test skids
An engine absorbs 1.72 kJ from a hot reservoir at 277°C and expels 1.24 kJ to a cold reservoir at 27°C in each cycle. What is the power output of the engine if each cycle lasts 0.303 s
A capillary tube with a closed end is place into water.
A slide projector needs to create a 99.0 -high image of a 2.00 -tall slide. The screen is 290 from the slide. What focal length does the lens need? Assume that it is a thin lens.
A laser used to weld detached retinas emits light with a wavelength of 654nm in pulses that are 20.2ms in duration. How much energy is in each pulse
A 2100 kg car traveling to the right at 32m/s is chasing a second car of the same mass that is traveling to the right at 10m/s.
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. find the average net force exerted on the all by the cushion
In fact, it is found that if the heavier mass is given a downward speed of 0.30 m/s, it comes to rest in 6.5 second. Find the average frictional torque acting on the pulley
At 20 degree C, the carbon resistor in an electric circuit connected to a 6.3-V battery has a resistance of 2.9 x 10^2 ohm. What is the current in the circuit when the temperature of the carbon rises to 76 degree C? mA
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between box and incline is 0.380. How far does the box slide down the incli..
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