PLEASE SOMEONE HELPP 345 g of silver at 300°C is placed in a 125 g Iron calorimeter that contains 400 g of water at 20.0°C. What is the final temperature?
O 115 ° C
O 32.5 °C
O 21.3 °C
O 35.7 °C

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j