Physics, 26.11.2019 22:31 isaacdlt15
Acrate is lifted vertically 1.5 m and then held at rest. the crate has weight 100 n (i. e., it is supported by an upward force of 100 n). how much work was done in lifting the crate from the ground to its final position?
1. 150 j2. no work was done.3. none of these4. more than 150 j5. a bit less than 150 j
Answers: 3
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Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
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Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums
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The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
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Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m
Answers: 2
Acrate is lifted vertically 1.5 m and then held at rest. the crate has weight 100 n (i. e., it is su...
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