A student is building a model of a lift that would move heavy boxes onto a truck. She wants to make a simple machine at 1/10th scale that can lift objects up to 3.4 kg. The model machine outputs up to 200 J of energy when functioning at maximum capacity. If the maximum height to lift an object is 0.3 m, which statement describes the amount of heat generated when the machine functions at maximum capacity? (g = 9.8 m/s2)

Acommercial passenger jet can travel up to 970 km/hr at an altitude of 30,000 feet. at this speed, how long will it take the jet to travel 1,865 kilometers? a. 2.3 hrs b. 1.9 hrs c. 1.7 hrs d. 1.5 hrs

14. a body is projected with velocity vi from a. at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.