A box being pushed with a force of 85N slides along the floor with a constant speed. What is the force of sliding friction on the box.

What is the name given to the large land mass which all of the continents once belonged to? A) Waterworld B) Colossus C) Frondwandaland D) Pangea

Which Earth system spheres are involved in this particular scientific investigation on hydraulic fracturing? Choose one or more: a. biosphere b. atmosphere c. hydrosphere d. cryosphere e. geosphere

How are average speed and velocity related to each other for an object in uniform motion? A. Speed and velocity are not related. B. Speed is the vector and velocity is the scalar. C. Speed is the absolute value of the velocity. D.

Compute the work performed when 3 tons is raised a distance of 10 feet.

What is net force? A. The fundamental forces B. The unified force C. The gravitational force D. The vector sum of the forces

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light