An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. a. what is her mass? b. what is her weight on earth? c. what would she weigh on mars?

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

How do the kidneys affect homeostasis