Determine work should the total external force
A 6100-kg satellite is in a circular earth orbit that has a radius of 2.7x10^7 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 5.6x10^6 m. What work must the net external force do?
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A parallel-plate capacitor is connected to a 12.0-V battery. The area on each plate is 16 cm^2 and the spacing between the plates is 0.12mm The space between the plates is filled with paper of dielectric constant 3.5. the electric charge on each o
A helicopter is ascending vertically with a speed of 13.6 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: packages initial speed equals the helic
The two resistors are connected in parallel across a power supply, and the current through the 9.0 ohm resistor is found to be 0.25 A. find the voltage setting of the power supply?
Two point charges lie along the y-axis. A charge of q1 = -8.5 μC is at y = 6.0 m, and a charge of q2 = -7.5 μC is at y = -4.0 m. Locate the point (other than infinity) at which the total electric field is zero.
A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 89 km/h. What is the car's centripetal acceleration in m/s2?
Calculate the magnitude of the induced emf in the loop while the magnetic field is increasing.
At the top of a hill with slope angle 25 degrees a snow sled is moving at 5 m/s. The sled travels 30 m down the hill before reaching the bottom. If the coefficient of kinetic friction between the sled and the snow is 0.4, how fast will the sled be
The electric attraction between the two objects provides the centripetal force to keep the particle in orbit. The orbital speed of the particle is 6.480e+4 m/s. What is the charge on the sphere?
If the loop's diameter changes from 24.4cm to 5.0cm in 0.42s the direction of the induced current would be clockwise. What is the magnitude of the average induced emf? If the coil resistance is 1.9 Ohms , what is the average induced current?
A glass window pane has an area of 3.00m^2 and a thickness of 0.600cm. If the temperature difference between its faces is 25.0C, what rate is the rate of energy transfer by conduction through the window?
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