Arectangular loop with dimensions 4.20 cm by 9.50 cm carries current i. the current in the loop produces a magnetic field at the center of the loop that has magnitude 3.10×10−5 t and direction away from you as you view the plane of the loop. part a what is the magnitude of the current in the loop?

The slope of a velocity time graph over any interval of time gives the during that interval

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

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?