joad0951 joad0951

16-04-2021
Physics

contestada

A ball falls down 30 meters from the top of a building. If the ball weighed 1.2 kg, what is the gravitational potential energy lost by the ball? Estimate g as 9.81.

Respuesta :

pankake103 pankake103

16-04-2021

The answer is
Pe:353.16 J

Answer Link

Otras preguntas

Which type of reaction occurs when nonmetal atoms become negative nonmetal ions? A. oxidation B. reduction C. substitution D. condensation

V=4/3πr^3 with 5 inches radius

Which statement describes electrolysis? (1) Chemical energy is used to produce an electrical change. (2) Chemical energy is used to produce a thermal change. (3

Which compound is classified as a hydrocarbon?(1) ethane (3) chloroethane(2) ethanol (4) ethanoic acid

The sum of two numbers is 21. The first number is 2/5 of the second number. What are the numbers?

F=gMv^2/r solve for v

According to one acid-base theory, water acts as an acid when an H2O molecule (1) accepts an H+ (3) accepts an H- (2) donates an H+ (4) donates an H-

A circle has a radius of 9 ft. What is the approximate area of the circle? Use 3.14 to approximate pi. Write the answer to the nearest hundredth.

A catalyst works by(1) increasing the potential energy of the reactants(2) increasing the energy released during a reaction(3) decreasing the potential energy o

In which type of reaction is an atom of one element converted to an atom of a different element? (1) decomposition (3) saponification (2) neutralization (4) tra