Four satellites are in orbit around the Earth. The heights of their four orbits are identical. The masses of the four satellites are given in the table. For
which satellite is the gravitational pull of Earth the strongest?
Satellite
Mass (kg)
A
1 200
B
1500
С
1400
D
1300

Explain vector addition, triangle method and parallelogram method

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

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?