2. Work occurs when (2 points) O an applied force results in movement of an object in the same direction as the applied force
O
an object is subjected to balanced forces resulting in movement of the obiect

the energy present is the result of the force acting on the object
Ο Ο
the movement of the object was caused by a force and is in the opposite direction of the force

Which type of microscope would allow the viewer to see ribosomes inside a cell?

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

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.