What is the normal operating unit for the perm?
What will be an ideal response?
The normal unit for the perm is grains per hour?inHg?ft^2.
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In science, the tendency of an experiment to produce a particular result is referred to as
A) a deviation B) bias C) an error D) an uncertainty
Consider the following situations:
· a car slowing down at a stop sign · a ball being swung in a circle at constant speed · a vibrating string · the Moon orbiting the Earth · a skydiver falling at terminal speed · an astronaut in an orbiting space station · a ball rolling down a hill · a person driving down a straight section of highway at constant speed with her foot on the accelerator · a molecule in the floor of this room In how many of the situations is the object accelerating?
1.One of the situations. 2.Two of the situations. 3.Three of the situations. 4.Four of the situations. 5.Five of the situations. 6.Six of the situations. 7.Seven of the situations. 8.Eight of the situations. 9.Nine of the situations. 10.None of the situations.How does the separation of maxima on the screen vary with slit separation?
A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground. At what angle below the horizontal does the ball approach the ground?
A) 35° B) 42° C) 48° D) 40° E) 65°