Humans must depend on the environment for their survival.

True

False

If the universe is expanding, what is outside it? If there is nothing outside it, how does it expand to create void?

A circuit with a current of 400 amp has several lights that have a total resistance equal to 30 ohms. Find the voltage.

Which of the following planets has a diameter that is larger than the diameter of the Earth?

Two froghoppers sitting on the ground aim at the same leaf, located 35 cm above the ground. Froghopper A jumps straight up while froghopper B jumps at a takeoff angle of 58° above the horizontal.

What is the term for the flow of electric charge

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?