An object with mass of 0.445kg is put in a vase with water to the 200ml mark. When it's inside the vase the water level rises to the 250ml mark. Is the object fully covered in water?​

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

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?

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?