Physics, 22.02.2021 16:20 reganjones89
Zeke saw a pen he dropped on the floor. He bent down and picked up the pen. His brain had to receive information from the eyes. Then it sent signals to his muscles so he could pick up the pen. What type of neurons sent impulses to his muscles?​
Answers: 2
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Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
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An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
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Frequency of electromagnetic waves that a radio station is assigned is called
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Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.
Answers: 1
Zeke saw a pen he dropped on the floor. He bent down and picked up the pen. His brain had to receive...
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