According to Newton's first law, a moving odject acted on by a net force of zero-

remains at rest

increase its inertia

slows at a constant speed

moves at constant speed

If you transfer a liter of oxygen into a 2 liter container and the gas expands to fill the entire container. Does the density of the oxygen change?

If you throw a 0.25-kg ball with a force of 20N what's the acceleration of the ball

While chopping down his father's cherry tree, george discovered that if he swung the axe with a speed of 25 m/s, it would embed itself 2.3 cm into the tree before coming to a stop. if the axe head had a mass of 2.

Which one of the following temperatures is equal to 5°C? A. 465 K B. 0 K C. 41 K D. 278 K

Which of the following statements about gemstones is true? Choose one: A. Emerald is a gemstone variety of the common mineral corundum. B. In order to be considered precious or semiprecious, a gemstone must be transparent. C.

What is a fault? A. the name for 2 opposing forces B. a type of crust that moves under heavier crust C. A crack in earths crust where movement occurs D. A volcanic region where new material is being created

18. Which does not affect the strength of an electromagnet? A the current in the solenoid B the temperature of the coil OC the number of loops in the coil D the type of ferromagnetic core

What causes the electric charges to flow from one end of the battery to the other? a balance in electric potential a balance in resistance a difference in electric potential a difference in resistance

What is one exsample of a closed economy

A transfer by work from the system, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s. The specific internal energy, u, decreases by 5 kJ/kg and the acceleration of gravity is constant at 9.7 m/s².