A brown bear runs at a speed of 9.0 m/s with 23, 000 J of kinetic energy. What is the bear's mass?
Round answer to two significant digits.
Please help!

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Select the three ways that the parallel-plate capacitor differs from a car battery.