When you're taking an exam for the first time with a new computer or in a new location, you should always try this practice test.判断题
A
True
B
False
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When you're taking an exam for the first time, the 100th time, with a new computer or in a new location, you should always try this practice test.
When you're taking an exam for the first time with a new computer or in a new location, you should always try this practice test.
A 62.9 kg lady is standing on a weighing scale in an elevator as shown in the diagram below. Assume gravitational acceleration = 15 ms-2 Given that the elevator is accelerating upwards at 3.7 ms-2 , determine the magnitude of the normal force on the lady.
An object is fired from ground level at an angle of 31.9 degrees to the horizontal. Taking acceleration due to gravity = 7.65 ms-2 If the initial speed is 5.6 ms-1, how far from the starting point will it hit the ground? Assume air resistance is negligible.
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