What are the SI units of momentum?

a. kg m/s c. joules
b. pascals d. watts


A

Physics & Space Science

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The process in which one plate slides under another is called subduction and occurs where seafloor crust descends into the mantle below continental crust

Indicate whether the statement is true or false

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No evidence of impact craters has been found on Venus

Indicate whether the statement is true or false

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After a switch is thrown to remove the battery from a DC LR circuit, but the circuit is still left complete, the time constant represents

a. the time rate of change of the current in the circuit. b. the time rate of change of the induced emf in the circuit. c. the magnitude of the ratio of the current to the time rate of change of the current. d. all of the above. e. only (a) and (b) above.

Physics & Space Science

If the displacement of an object is given in SI units by Dx = -5t + t 2, at t = 2 s its velocity and acceleration are, respectively: (Hint: Use dimensional analysis along with the equations for motion with constant acceleration.)

a. positive, positive. c. negative, negative. b. positive, negative. d. negative, positive.

Physics & Space Science