Projectile Motion: A ball is thrown at an original speed of 8.0 m/s at an angle of 35° above the horizontal. If there is no air resistance, what is the speed of the ball when it returns to the same horizontal level?
A. 4.0 m/s
B. 8.0 m/s
C. 16 m/s
D. 9.8 m/s
Answer: B
Physics & Space Science
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A proton has a total energy of 2.5 × 10?10 J. How fast is it moving? (mp = 1.67 × 10?27 kg)
A. 0.90c B. 0.80c C. 0.70c D. 0.60c E. 0.40c
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As current flows through a uniform wire, the wire gets hotter because the electrons stop moving and therefore transform their lost kinetic energy into thermal energy in the wire
A) True B) False
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When measuring the Hall voltage, what happens to the reading when the current is increased 20%?
A. it increases 20% B. it increases 40% C. it increases 44% D. it decreases 20% E. it decreases 44%
Physics & Space Science
The type of mirror that will allow you to see large areas normally hidden from your view is __________
Fill in the blank(s) with correct word
Physics & Space Science