As energy is transferred among organisms, some escapes from the environment as ____ energy
a. electrical
b. heat
c. light
d. mechanical
e. nuclear
b
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Einstein's equation E = mc2 states that when a particle loses energy, the result is an increase in mass of the particle
a. True b. False Indicate whether the statement is true or false
Two identical balls are at rest and side by side at the top of a hill. You let one ball, A, start rolling down the hill. A little later you start the second ball, B, down the hill by giving it a shove. The second ball rolls down the hill along a line parallel to the path of the first ball and passes it. At the instant ball B passes ball A:
a. it has the same position and the same velocity as A. b. it has the same position and the same acceleration as A. c. it has the same velocity and the same acceleration as A. d. it has the same displacement and the same velocity as A. e. it has the same position, displacement and velocity as A.
A dominating segment of a webpage that directs visitors' attention is called a(n) ______.
A. focal point B. white space C. contrast area D. visual identity
A huge interstellar cloud collapsed into a rotating disk with a central bulge. What did this object become?
A. The disk was the solar nebula and the bulge became the Sun. B. A large belt containing asteroids in a gap between the orbits of Mars and Jupiter. C. The disk was the Solar nebula and the bulge became Jupiter. D. They formed the outer planets which eventually met up with the Sun.