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Calculate the electrical power of a lamp that carries 2 amps of current at 120 volts. Please show your work and write (preferably type) legibly.
A 5mm tall object is placed in front of a thin lens of focal length 4cm. what is the distance of the object from the lens
a metal sphere of radius 80. mm is charged to a potential of -0.50 kv. with what velocity must an electron be fired
An LC circuit includes a 0.010 µF capacitor and a 400 µH inductor. If the peak voltage on the capacitor is 190 Volt, obtain what is the peak current in the inductor
A stamp collector is viewing a stamp with a magnifying glassheld next to her eye. Her near point is 25 cm from her eye. What is the refractive power of a magnifyingglass that has an angular magnification of 6.9 when the image ofthe stamp is located ..
After placing the 5.00 kg mass onto the syringe you wait for the syringe to return to thermal equilibrium with the surrounding laboratory. What is the height of the syringe now?
When laser light of wavelength 633.4nm passes through a diffraction grating, the first bright spots occur at 17.8 degrees from the central maximum. At what angles do the third bright spots occur
a seasoned mini golfer is trying to make par on a tricky hole 5. the golfer can complete the hole by hitting the ball
A tee consisting of two thin rods each having a mass of M and with lengths L1 and L2, Find the rotational velocity of the tee-clay ball combination just after the collision
Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 516 Hz, determine the (a) initial and (b) final sound intensities (in ?W/m2) and the (c) ..
a viewing window in the atlanta aquarium is 69 inches wide and 41 inches high. if the average pressure of the water
If the relative uncertainty of the measurement of the slit separation d above is 6.3%, and other measurement uncertainties are neglected, what is the absolute uncertainty of the wavelength (to two important figures)?
A high intensity desk lamp is rated at 45 W and 12 Volts. It contains a transformer in its base that converts 120 V household voltage to the needed level. What is the current in the primary when the lamp is on
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