A motorcycle travels 15 km west in an hour. The motorcycle then travels 35 km east in another hour. If east is taken as the positive direction, what is the velocity of the motorcycle?

A. - 10 km/h

B. 10 km/h

C. 50 km/h

D. - 50 km/h

Exposure to the Sun's harmful infrared radiation should be kept to a minimum. a. True b. False

P3.43 Water at 20 C flows through a 5-cm-diameter pipe that has a 180 vertical bend, as in Fig. P3.43. The total length of pipe between flanges 1 and 2 is 75 cm. When the weight flow rate is 230 N/s, p1

What are glacial episodes example of

Which material would melt ice more quickly? A. Styrofoam B. metal

Which best describes how air moves during convection?

What are some methods humans have used to control flooding and what has been done to worsen the effects of flooding?

Suppose an electron is moving with a constant velocity until it encounters a positively charged sphere on its right. How does the sphere alter the trajectory of the electron? a. It has no effect on the trajectory of the electron b.

Most of the mass of the Milky Way exists in the form of: a.) starsb.) gasc.) dustd.) dark matter

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

F we wanted to compare muscular endurance between a very large person and a very small person, what method would be the best method to use? a. absolute method b. maxing out c. callisthenic method d. fixed percentage of rm method