Why do you think a pregnant woman needs more energy from food than a woman who is not pregnant?

A car drives at a constant speed of 3m/s around a circle with radius 20m. What is the centripetal acceleration of the car

A particle's trajectory is described by x = (12t3-2t2) m and y = (12t2-2t) m, where t is in s. What is the particle's speed at t=0s? What is the particle's speed at t=5.0s? Express your answer using two significant figures.

Which of the following is MOST useful to scientists in measuring the size of asteroids? A) The speed at which the asteroid is traveling. B) The location of the asteroid in the Solar System.

Energy of water is also a form of solar energy. Explain.

1. What is the kinetic energy of a vehicle that has a mass of 2000.0 kg that is driving at a constant speed of 40.0 m/s? 2. What is the kinetic energy of a vehicle with a constant speed of 35.0 m/s with a mass of 4500 kg? 3.

Television is becoming a more effective mass media outlet for advertising because so many more people own TV sets and have access to cable as well as satellite. A. True B. False

How to solve indices

The elements in group 17 of the periodic table are called halogens. all halogens have the same?

Baby Susie's pediatrician notices that one of her eyes rotates outward and that she does not appear to be using it for vision. What is her condition and what does the pediatrician recommend?

All the interconnected paths of energy flowing from species to species in an ecosystem is called a a. trophic level. b. food chain. c. detrital food web. d. food web.