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Does time dilation mean that time actually passes more slowly in a moving inertial reference frame, or that it seems to move slower? Would a mechanical clock be affected by time dilation? If you are traveling away from Earth at 0.7c does your heart rate slow down?
a balloon rubbed against denim gains a charge of -8.0 microc. whats the electric force between the balloon and the
An electromagnetic doorbell has been constructed by wrapping 66 turns of wire around a long, thin rod, What is the magnitude of the angular velocity of the rod
if the incident light is unpolarized about what percentage 0 to 100 of the light intensity gets through a plane
A 7.3 x10^3 kg space vehicle and its empty 6.8 x 10^2 kg booster unit are moving together through space at 370 m s. An explosion lasting 2.2s is used to separate the two parts.
two parallel plates each of area 6.27 cm2 are separated by 3.60 mm. the space between the plates is filled with air. a
A 48 kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. determine her altitude as she crosses the bar
A 124cm long 4.00g string oscillates in its n=4 mode with a frequency of 200 Hz and a maximum amplitude of 5.50mm What is the tension in the string?. What is the wavelength in the string?
A television is tuned to a station broadcasting at a frequency of 6.60×10^7 Hz . For best reception, the rabbit-ear antenna used by the TV should be adjusted to have a tip-to-tip length equal to half a wavelength of the broadcast signal
Consider a parallel plate capacitor with an area of 2 cm^2 and a plate separation of 0.02 mm which is charged to a voltage of 2 kV. The work function for the electrons in the plate is 3.8 eV. Compare the electron tunneling current when there is a vac..
We all sound like great singers in the shower, due to standing waves. What are the wavelengths of the first two overtones for this shower
You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 670 N and that of your belongings is 1030 N. Determine the work done by the elevator in lifting you
A box of books is initially at rest a distance D = 0.515 m from the end of a wooden board. Find the speed of the box as it reaches the end of the board
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