Physics, 12.11.2019 08:31 stephliu721
Which type of crystal system is also known as cubic, includes diamonds, and has three axes of symmetry that are at right angles to each other?
a. triclinic
b. isometric
c. tetragonal
d. monoclinic
Answers: 2
Physics, 21.06.2019 19:30
Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.
Answers: 1
Physics, 21.06.2019 21:40
Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
Answers: 3
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Which type of crystal system is also known as cubic, includes diamonds, and has three axes of symmet...
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