Diana would like to observe the movements of a paramecium. Which of the following tools would be best for Diana to use? A. hand lens B. light microscope C. scanning electron microscope D. convex telescope

The velocity of sound in air saturated with water vapour at 30°C is 340 m/s. If the atmospheric pressure is 65cm of mercury and saturated vapour pressure of water at 30°C is 31.7 mm of mercury. Calculate the velocity of sound in dry air at 0°C.

Jack stands at rest on a skateboard. The mass of Jack and the skateboard together is 75 kg. Ryan throws a 3.0 kg ball horizontally to the right at 4.0 m/s to Jack, who catches it. What is the initial momentum of the system in kg m/s?

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

How much does an 18 wheeler trailer weigh?

Why are plate tectonics a theory?

How do you determine the speed or velocity of an object using a distance vs. time graph

What is the median of 5 12 7 15 3 6 1

If you double the velocity of an object, you increase its kinetic energy by a factor of what?

2. Modern aircraft carriers use a steam powered catapult system to launch jets from a very short range. These catapults can provide a constant acceleration to bring jets up to speed in only two seconds.

Which of these best describes a situation where science is used? A. choosing a career after graduation B. brushing teeth after having dinner C. ordering food in a restaurant by looking at a menu card D.