You press a stick that has a varying cross-sectional area horizontally between the palms of your hands. The area of the stick pushing against your left palm is twice the area of the stick pushing against your right palm.The force on your left palm is twice than the force on your right palm
a. True
b. False
Indicate whether the statement is true or false
False
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What is the primary reason that we launch X-ray telescopes into space rather than building them on the ground?
A. It is less expensive to launch them into space. B. On the ground, there would be too much light pollution from nearby cities. C. Atmospheric turbulence blurs X-ray images too much. D. X-rays from space do not reach the ground.
(Ignore air resistance for this problem.) Two identical balls are thrown simultaneously from the top of a very tall cliff. Ball A is thrown downward with an initial velocity of 6 m/s, while ball B is thrown straight upward with an initial velocity of 9.8 m/s. After one second has elapsed, the
A. acceleration of ball A is upward. B. velocity of ball A is 9.8 m/sec2. C. velocity of ball B is zero. D. acceleration of ball A is greater than that of ball B. E. acceleration of both balls is zero.
Comet impacts might have been a good mechanism for seeding the hot early Earth with the water and molecules of life
Indicate whether the statement is true or false
A two-slit arrangement with 60.3 ?m separation between the slits is illuminated with 537.0-nm wavelength light. If a viewing screen is located 2.14 m from the slits,
find the distance on the screen from the first dark fringe on one side of the central maximum to the second dark fringe on the other side. A) 57.2 mm B) 38.1 mm C) 76.3 mm D) 26.9 mm