A force of 7.2 N acting on a 1.0-kg object initially at rest moves it through a parallel distance of 2.5 m. How much work is done on the object?
18 J
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A holographic plate produces an image for the viewer that is:
A. real B. virtual C. may be either virtual or real
According to Wein's law, the higher the surface temperature of a star, the redder its color
Indicate whether the statement is true or false
When the sum of the external forces and the sum of the external torques on a body are both zero, we can conclude that
a. the body is moving at constant velocity but is not rotating. b. the body is rotating at constant angular velocity but has no linear velocity. c. the body has neither linear nor angular velocity. d. the body may have constant linear or angular velocity, but not both simultaneously. e. the body may have constant linear or constant angular velocity, or both simultaneously.
A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop increases at a rate of 3.0 × 10-3 m2/s, what is the induced emf in the loop?
A) 4.3 mV B) 0 mV C) 1.5 mV D) 1.7 mV E) 5.5 mV