Physics, 29.04.2021 21:40 carmenmarie368
Suppose a small metal object, initially at a temperature of 60 degrees, is immersed in a room which is held at the constant temperature of 90 degrees. It takes 3 minutes for the temperature of the object to reach 75 degrees.
Calculate the heat transfer coefficient
r
, i. e. the constant of proportionality in the differential equation that describes Newton's law of cooling.
Answers: 2
Physics, 22.06.2019 03:30, coollid876
Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)
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Answers: 1
Suppose a small metal object, initially at a temperature of 60 degrees, is immersed in a room which...
Mathematics, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31