A hydraulic lift is used to lift a 9800-newton sportscar 2.00 meters. The cylinder supporting the car is 10.0 centimeters in diameter, the input force is applied to a hydraulic cylinder 1.00 centimeter in diameter. Figure 12-2

55. Over what distance must the input force be applied to lift the sportscar 2 meters?

56. Calculate the pressure exerted by the hydraulic lift.

57. Calculate the force that must be exerted at the input cylinder to lift the sportscar at the output cylinder.

Although the two theories differ on the evolutionary path of dinosaurs, they agree that

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.