Which statement is correct?
a. light, in a vacuum, travels at the same speed even if the lig...
Physics, 04.11.2019 17:31 cristykianpour
Which statement is correct?
a. light, in a vacuum, travels at the same speed even if the light source is moving.
b. light, given off from a moving source will travel faster in a vacuum.
c. light, given off from a moving source will move faster in air.
d. light, in a vacuum, travels slower if the light source is moving.
Answers: 3
Physics, 22.06.2019 00:40, naomicervero
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 1
Physics, 22.06.2019 22:20, destiniout04231
A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.
Answers: 1
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