Bikes come in 5 different colors the bike shack order 45 bikes they order the same number of bikes in each color. how many bikes do they of each color

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?

What is the state of matter with a specific volume but no definite shape

Based on the image below what would an observer on the nighttime side of earth observe?