Questions in Grade High-school

Questions in Grade High-school

[Free] A 2,000-kilogram railroad car moving at 5 m/sec to the east collides with a 6,000-kilogram railroad car moving at 3 m/sec to the west. If the cars couple together, what is their velocity after the collision?

[Free] Why should you never use direct sunlight as a source of light for the microscope?

[Free] Which of the following terms describes the giving up of a person suspected of a crime as part of an agreement between two or more sovereign powers? A. cartel B. extradition C. bicameral D. insurgency

[Free] Progressive women reformers worked to: A. reduce wages B. limit the workday C. overturn the Nineteenth Amendment D. establish segregated schools in Chicago

[Free] You hit the wall with a stick. What is the equal but opposite reaction?

[Free] Determine the constant of variation for the direct variation given. R varies directly with S. When S is 16, R is 80.

[Free] Which belief system was the basis for the civil service exam given during the Han, Tang, and Song dynasties?

[Free] Marty has a fence in the shape of a rectangle. Its area is 635.4 square feet, and the width of the yard is 18 feet. What is the length of the yard?

[Free] Apply the law of conservation of energy and describe the energy transformations that occur as you coast down a long hill on a bicycle and then apply the brakes to make the bike stop at the bottom. A roller coaster is at the top of a hill and rolls to the top of a lower hill. If mechanical energy is constant, then on the top of which hill is the kinetic energy from the roller coaster's motion greater?

[Free] What type of suffrage did women gain in New York in 1917?