Physics, 21.02.2020 01:00 Falconpride4079
If two different substances, with the same mass (1 gram) absorb the same amount of energy, which of the following can be predicted? The temperature of both substances will increase equal amounts. The temperature of the substance with the lower specific heat will increase more than the one with a higher specific heat. The temperature of the substance with the higher specific heat will increase more than the one with a lower specific heat. Cannot predict without knowing the specific substances.
Answers: 2
Physics, 21.06.2019 15:10
What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?
Answers: 3
Physics, 21.06.2019 18:10
An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.
Answers: 2
If two different substances, with the same mass (1 gram) absorb the same amount of energy, which of...
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