Physics, 03.10.2019 07:30 ceejay8005
1. a liquid compound is not heated by microwaves the way water is. what can you conclude about the nature of the compound's molecules?
2.a solid metal cylinder has a certain resistance. it is then heated and carefully stretched to form a longer, thinner cylinder. after it cools, will its resistance be
a. the same
b. greater than
c. less than what it was before?
explain your choice.
Answers: 2
Physics, 22.06.2019 17:50, manou76
Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
Answers: 1
Physics, 22.06.2019 18:30, dbryrob2557
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
1. a liquid compound is not heated by microwaves the way water is. what can you conclude about the n...
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