If the masses of an object increase and their distance from each other stays the same the force of gravity

decreases

increases

stays the same

increases then decreases

Consider an object sliding at constant velocity along a frictionless surface. Which of the following best describes the forces on the object?

Which one of the following activities lead to poor posture

A railroad car of mass 2,000 kg traveling at a velocity v = 10 m/s is stopped at the end of the tracks by a spring-damper system, as shown in fig. 1. if the stiffness of the spring is k = 80 n/mm and the damping constant is c = 20 n-s/mm, determine:

Which statement best describes the magnetic properties of a material? Magnetic materials have many spinning, unpaired electrons Paired electrons of magnetic materials can move to other atoms Electrons of magnetic materials are strongly held by

A cart of mass 20 kg, initially at rest, is pushed with a net force of 40 N on a flat surface. If the cart is pushed 5 m, what is the final kinetic energy (KE) ? What is the final velocity? (Assume no heat losses.)

A person gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. The cart travels forward along the floor, gradually slowing as it moves.

A driver, traveling at 22.0 m/s, slows down her 2.00 x 103 kg car to stop for a red light. What work is done by the friction force against the wheels?

If the masses of an object increase and their distance from each other stays the same the force of gravity decreases increases stays the same increases then decreases

What is Avogadro's number? A. 5.002 Ã - 1020 B. 2.3 Ã - 1021 C. 6.02 Ã - 1013 D. 6.02 Ã - 1023

Mathew, a farmer, cultivates monocultures of wheat. What negative effect will monoculture farming have on Mathew's land? A. crop productivity will decrease B. greenhouse gases will generated C. nutrients will not be recycled back into the soil D.