I WILL GIVE BRAINLIEST IF SOMEONE GET THIS Bronze is made by mixing molten copper and tin. If 200kg of the mixture contains 75% by mass of copper and 25% by mass of tin, calculate the density of bronze given that density of copper is 8900kg/m3 and density of tin is 7000kg/m3.

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

What is the measurement of how fast an object moves relative to a reference point?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.