Physics, 17.09.2019 03:00 2021andrewkell
There are several gas cylinders that are under pressure, which are located outside of the maintenance department. as the safety professional, you have been asked a couple of questions regarding this issue. provide the correct responses, and discuss your recommendations for any control measures.
the volume of the gas cylinder is 25.7 liters and exerts a pressure of 670 mmhg. if part of the gas is used, the pressure drops to 595 mmhg. what would be the remaining volume of gas?
Answers: 2
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The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?
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What equation is used to calculate the weight of an object on a plant ?
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Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided
Answers: 3
Physics, 22.06.2019 20:20
The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?
Answers: 2
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