A potential difference of 25.0 V is applied between the ends of a 30.0-m gold wire with a diameter of 5.50 mm. The resistivity of the wire is 2.44 × 10−8 Ω.m., Calculate
the drift speed of the electron in the wire. Assume one atom conducts one electron.

(molar mass of gold =196.97 g/mol and ρgold = 19.32 g/cm3

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Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

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?