7 1. How many Newtons are there in 56 Kg m/s2 ? Why? 2. A force of 150 N acts on the block at the angle shown in the diagram. The block moves a horizontal distance of 30.0 m. How much work is done by the applied force?Show your calculations: 0 30 1

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.