A 2kg book is moved from a shelf that is 2m off the ground to a shelf that is 1.5m off the ground, what is it's change in gravitational potential energy

an object with a mass of 6.0 kg accelerates 4.0 m/s² when an unknown force is applied to it. what is the amount of force?

A car is traveling at a constant velocity of sok V or hours Choose the correct statement about the acceleration of the The acceleration of this car is zero.

What are all the elements of a perfect graph?

The radius of a potassium atom is 0.227 nanometer (nm). what is this radius in centimeters (cm) ? a. 2.27 Ã 10â8 cm b. 2.27 Ã 106 cm c. 2.27 Ã 10â10 cm d. 2.27 Ã 10â11 cm check answer

An atom with an imbalance of electrons to protons is

Steam enters an adiabatic turbine steadily at 3 mpa and 400°c and leaves at 50 kpa and 100°c. if the power output of the turbine is 2 mw, determine (a) the isentropic efficiency of the turbine and (b) the mass flow rate of the steam flowing through

StA A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far has the boat traveled? Round your answer to the nearest whole number.

Which inventor created a delivery system for electricity that was deemed safer than Thomas Edison's system? a. Henry Flagler b. George Proctor c. George Westinghouse d. Thomas DeSaille Tucker

Which is the most closely related to the color of an acid-base indicator when dipped into solution? A.) The hydronium ion concentration in the solution. B.) The total amount of solution present. C.) The number of water molecules in the solution. D.

If a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. Water will move out of the cell, causing it to swell. b.