Figure 1 (The Attached Image): A circuit is shown above. Assume the cell and wires are ideal. Find the voltage across the 4, R,4R resistor.
(This uses Kirchhoff's Laws)

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

=force × distance a. work b. velocity c. pressure d. momentum

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.