The power consumed by the light bulb is 20 watts
Indicate whether the statement is true or false
F
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Satellite Motion: A satellite orbits the Earth once every 6.0 hours in a circle. What are the magnitude and direction of the acceleration of the satellite? (G = 6.67 × 10-11 N ? m2/kg2, Mearth = 5.97 × 1024 kg)
What will be an ideal response?
Light is incident on a double-slit. The fourth bright band has an angular distance of 7.0° from the central maximum. What is the distance between the slits (in ?m)? (Assume the frequency of the light is 5.4 × 10^14 Hz.)
a. 27 b. 21 c. 24 d. 18 e. 14
A steady current of 0.15 A exists in a wire for 20 s
a. How much net charge passes by a point in the wire? b. How many electrons does this charge represent?
What do we know about the direction of momentum?
a. It has the same direction as the object's speed. b. It has the same direction as the object's acceleration. c. It has the same direction as the object's weight. d. It has the opposite direction to the object's velocity. e. It has the same direction as the object's velocity.