LET'S CHECK! Across
1. when an object takes in light
5. colors that white reflect
6. light is converted into this form of energy
when absorbed
8. presence of all colors
9. the color of an object that reflects green
Down
2. the color that means the absence of all colors
3. light bounces back upon hitting an object
4. colors reflected by black
7. the color of an object that absorbs all colors
except red​

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?