A set of data was collected measuring the length of a sheet of steel using three different instruments. The actual length of the sheet is 2.00 m. Which instrument is the most accurate in its measurements

Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:

Acar travels 40m in 8 seconds find the car speed

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.