Classify the following statement as a characteristic
(a) of electric forces only,
(b) of magnetic forces only,
(c) of both electric and magnetic forces, or
(d) of neither electric nor magnetic forces.
The force exerted on a charged object is proportional to its speed.
1.electric forces
2.magnetic forces
3.both electric and magnetic forces
4.neither electric nor magnetic forces
2
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A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30? degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3 * 10 3 N/m. The block slides down the ramp and compresses the spring. Find the maximum compression of the spring.
An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the origination of the flight
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Even with perfect optics, what is the resolution limit (in radians) of the Hubble Space Telescope when it is focusing light of wavelength 400 nm? The mirror diameter is 2.4 m
What will be an ideal response?