A person weighs 146 pounds. The person's weight is (1 lb = 4.45 N)
A. 445 N.
B. 500 N.
C. 584 N.
D. 650 N.
D. 650 N.
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The Fahrenheit scale has a ______________ degree size than the Celsius scale
Fill in the blank(s) with correct word
A girl is using a rope to pull a box that weighs 300 N across a level surface with constant velocity. The rope makes an angle of 30° above the horizontal, and the tension in the rope is 100 N. What is the normal force of the floor on the box?
a. 350 N b. 200 N c. 400 N d. 250 N e. 213 N
Why do we use fuses?
a. to eliminate shock hazards b. to prevent fires c. to save on the cost of electricity d. to store charge
The distance between adjacent orbit radii in a hydrogen atom
A) increases with increasing values of n. B) decreases with increasing values of n. C) varies randomly with increasing values of n. D) remains constant for all values of n.