do you think taking “Legs” of the snowboarder as reference point for plotting the motion is a good option for describing the snowboarder’s projectile motion?

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

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

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black