Determine the mechanical energy of this object: a 1-kg ball sits on a 10-meter high cliff.

A. The ball isn't moving, so the mechanical energy is zero

B. 10 J

C. 98 J

D. 980 J

Also could you explain how you did it because i have know idea how to solve it

Im building a carbon atom. I've been told that the atomic number of carbon is 6, which means that the carbon Atom has how many protons.

A pressure difference of 6.00 x 104 Pa is required to maintain a volume flow rate of 0.400 m3 / s for a viscous fluid flowing through a section of cylindrical pipe that has a radius 0.330 m.

The magnitude of the charge of the electron is: a. Exactly the same as the magnitude of the charge of the proton. b. Much greater than the magnitude of the charge of the proton. c. Zero. d. Much less than the magnitude of the charge of the proton. e.

One difference between a hypothesis and a theory is that a hypothesis

A car traveling 90 km/hr is 100 m behind a truck traveling 50 km/hr. How long will it take the car to reach the truck?

Give two examples of motion related to civil engineering.

The waves shown below represent sound waves. Which of the waves would have the highest-pitched sound?

In most materials, as heat energy is absorbed, density

What types of energy transformations take place in a windmill

A shot is fired at an angle of 30 degrees with the horizontal from the top of a tower 182.88m. The velocity of projection is 60.90m/s. Find where from the foot of the tower it strikes the ground?