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drag each label to the correct location. each label can be used more than once.
match the properties with the subatomic particles
its electrical charge is +1.
its electrical charge is -1.
its electrical charge is 0.
its mass is 1
mass is negligible
it's found in the nucleus.
it's found outside
the nucleus
electron
proton
neutron

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?