A comet's tail: a. always lies in the ecliptic plane, because a comet is a part of the Solar System.
b. lies between the comet and the nearest planet, because of gravitational attraction.
c. lies between the comet and the Sun, because the gravitational attraction of the Sun dominates over planets.
d. always trails along the orbital path, because of the comet's motion.
e. always points away from the comet in the anti-Sun direction because of the solar wind and light pressure.

What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is