An object 10.0 cm in height is placed 37.0 cm in front of a concave mirror of focal length 18.5 cm. What is the height of the image?
A) -2.5 cm
B) -5.0 cm
C) -7.5 cm
D) -20.0 cm
E) -10.0 cm
E
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The Andromeda spiral galaxy is almost edge-on to us. Astronomers have detected the orbital motion of this and other such galaxies' disk material by
a. using Hubble's law. b. measuring Doppler shifts of different parts of the disk. c. the steady state theory. d. measuring Doppler shifts of different parts of the disk.
The wheelbase on a 50,000-kg truck is 2.40 m wide and the truck's center of mass is located along the vertical centerline of the truck and 2.00 m above the bottom of the tires
The truck is going around a horizontal turn with a radius of 250 m at 24.0 m/s. What is the total normal force on the tires on the side of the truck that faces the center of the curve? A) 245 kN B) 149 kN C) 349 kN D) 283 kN E) 255 kN
In an isothermal process
a. the volume remains constant. b. the temperature remains constant. c. no heat is transferred between a system and its surroundings. d. the pressure remains constant. e. the internal energy is not constant.
The ratio of the electric field to the magnetic field in the electromagnetic wave is the speed of the light
Indicate whether the statement is true or false