Which one of the following indicates a drop in temperature?
A bimetallic strip bends so that the steel is on the outside curve -indicates a drop in temperature.
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If a ball with an original velocity of zero is dropped from a tall structure and takes 7 seconds to hit the ground , what velocity does the ball Have when it reaches the ground ?
Weegy: If a ball with an original velocity of zero is dropped from a tall structure and takes 7 seconds to hit the ground, [ the ball have 68.6 m/s velocity when it reaches the ground. Solution: Final Velocity = Initial Velocity - (Gravity)(Time); Final Velocity = 0 m/s - (-9.8 m/s)(7s); Final velocity = 68.6 m/s. ] (More)
A 3.8 kg object is lifted 12 meters . Approximately how much work is performed during the lifting ?
Weegy: A 3.8 kg object is lifted 12 meters. Approximately 446.9 J of work is performed during the lifting. Solution: W = mgh; W = (3.8 Kg)(9.8 m/s²)(12 m); W = 446.88 J or 446.9 J. (More)
A 6.7 kg object moves with a velocity of 8 m/s . What’s its kinetic energy ?
Updated 7/14/2019 2:23:45 AM
A 6.7 kg object moves with a velocity of 8 m/s. kinetic energy= 1/2 *m*v^2 , Kinetic energy =1/2 * 6.7* 8 *8 = 214.4J
Which of the following objects uses two converging lenses to produce two images, the second of which is virtual, magnified, and inverted? A. Compound microscope B. Slide projector C. Corrective eyeglasses D. Camera
Weegy: Compound microscope objects uses two converging lenses to produce two images, the second of which is virtual, magnified, and inverted. (More)
Updated 10/5/2018 2:17:30 AM
What is not a factor in the illuminance at a certain point in a room with no windows ?
Updated 4/27/2020 4:03:48 PM
The time of day is not a factor in the illuminance at a certain point in a room with no windows.

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