Physics, 08.10.2019 23:10 christopherandp66l91
The barrel of a rifle has a length of 0.855 m. a bullet leaves the muzzle of a rifle with a speed of 553 m/s. what is the acceleration of the bullet while in the barrel? a bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be assumed for this problem. answer in units of m/s 2 .
Answers: 3
Physics, 21.06.2019 20:30
Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?
Answers: 3
Physics, 21.06.2019 20:30
Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)
Answers: 2
Physics, 22.06.2019 09:30
1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.
Answers: 1
Physics, 22.06.2019 10:30
J. j. thomson’s experiment disproved the theory that an atom
Answers: 3
The barrel of a rifle has a length of 0.855 m. a bullet leaves the muzzle of a rifle with a speed of...
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