An object has a weight of 399 newtons on the surface of Venus. The acceleration due to gravity on Venus is 8.87 meters per second squared. What is the mass of the object?

A.) 0.022 kg

B.) 41.0 kg

C.) 45.0 kg

D.) 81.4 kg

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

Energy flows from the producer level to the level. is called

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.