In a vacuum, which form of electromagnetic radiation travels slowest?
A) Visible light
B) Radio
C) Gamma rays
D) Ultraviolet light
E) All forms of electromagnetic radiation travel at the same speed.
E
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A 3.0 kg object is moving to the right at 4.0 m/s. It collides in a perfectly inelastic collision with a 6.0 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?
A. 62 J B. 25 J C. 12 J D. 0.0 J
Information-carrying nerves are connected to the retina at the
A) fovea. B) blind spot. C) cornea. D) iris. E) periphery.
The U-tube shown is rotated about the left vertical leg at 100 rpm. The highest pressure in the U-tube is nearest:
(A) 5.6 kPa
(B) 4.2 kPa
(C) 2.2 kPa
(D) 0.8 kPa
Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s would be a distance of ____ Mpc from Earth
a. 0.014 b. 70 c. 4930 d. 4970 e. 343,000