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Two balls with mass m1 and m2 are a distance R apart. The gravitational force between them is F. For two balls with masses 3 m1 and m2/7.00 a distance 2 R apart, find the gravitational force between these balls (in terms of F)?
you are on a standard elavator . you are holding a fishing rod with a fish you just caught on the fishing line .the fish has a mass of 4kg. how much tension is in the fishing line
Use Kirchhoff's laws to set up three simultaneous equations that can be solved for the value of each of the currents in Figure 3 in terms of the power supply voltages and the resistor values. Use the measured resistor and power supply voltage values ..
an electrically neutral model airplane is flying in a horizontal circle on a 3.0-m guideline which is nearly parallel
A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, calculate the number of turns on the secondary coil of the adapter transformer
Assume that the air temperature is 20C and that no wind is blowing. How much time would elapse if the wind were blowing toward the observer at 33.0Km/h from where the rail was struck?
One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 140 N. What is the radius of the brass ball
a circuit consists of an ideal ac generator a 20nbspmicrof capacitor and an 90?nbspresistor all connected in series.
q1. in a crash test a 1300 kg car slams into a concrete wall at 18.8 ms and comes to rest in 0.275 s. a find the
Two small plastic spheres are given positive electrical charges. When they are 15 cm apart, the repulsive force between them has magnitude of 0.220N. what is the charge on each sphere
A train at rest emits a sound at a frequency of 1000 Hz. What is the frequency heard by the observer
An electric motor can accelerate aFerris wheel of moment ofinertia I = 20000 kg·m2 fromrest to 9.7 rev/min in 12.0 s. Determine the torque generated by the motor to bring the wheel to 9.7 rev/min
An individual uses a pulley and rope to raise a 25 kg mass to a height of 2.0 m. If it takes 5.0 seconds to do this, how much power was supplied
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