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Moses Vincent
An arrow is shot upward on mars from ground level with a velocity of 60 meters per second. Its height (in meters) after t seconds is given by 2 s (t) = 60t - 1.9t^2. (a) what is the maximum height attained by the arrow? (b) With what velocity will the arrow hit mars?
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Veronica Perkins
What are (a) the lowest frequency, (b) the second lowest frequency, (c) the third lowest frequency of transverse vibrations on a wire that is 10.0m long, has a mass of 100g, and is stretched under tension of 250 N?
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Helen
Why is a rock salt crystal likely to shatter when struck
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Chic
Find the speed required to throw a ball straight up and have it return 6 seconds later. neglect air resistance.

how high does the ball go?
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Mikaela Wade
Do all electromagnetic waves travel at the speed of light, carry energy, and travel through a vacuum?
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Rudy Weiss
The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding?

30

583

12000

332500
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Allen Morrow
A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh
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Geovanni Wilson
In an experiment, the control is

never changed by the scientist

not important to the scientist

not recorded by the scientist

changed by the scientist
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Saniyah Mejia
When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?
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Aedan Lynch
All describe work except

A) a team of dogs dragging a sled

B) a jokey sitting on a horse

C) a bowler lifting a bowling ball
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Zayne Greer
Who is known as the father of toxicology
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Amelia Herman
In which layer of the sun is energy transfferred between atoms?
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Jaqueline
A 63 kg object needs to be lifted 7 meters in a matter of 5 secound. Approximately how much horsepower is required to achieve in the task
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Markus Diaz
If you ere to continue the investigation, what would you suggest as a next step? and Can you determine the identity of an unknown substance by calculating its densitu and observing chemical reactions?
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Isaac Stafford
A small cylinder made of a diamagnetic material is brought near a bar magnet. One end of the cylinder is brought near the North pole of the magnet and is repelled. What happens when the other end of the cylinder is brought near the North pole of the magnet? (A) The other end of the cylinder will be repelled by the magnet. (B) The other end of the cylinder will not be affected by the magnet. (C) The other end of the cylinder will be attracted more strongly by the magnet. (D) The other end of the cylinder will be attracted less strongly by the magnet. (E) The other end of the cylinder will be attracted by the magnet.
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