Why is it better to build and test a prototype of a product than to pruduce tens of thousands of the product and then test it?

A carpenter is making a part for a desk. The part is to be 256 millimeters wide plus or minus 3 millimeters. This means that the absolute value of the difference between the dimension of the part and 256 can be no more than 3 millimeters.

What is the temperature change in 355 ml of water upon absorption of 34 kj of heat? (the specific heat capacity of water is 4.184 j/g∘c.) express your answer in degrees celsius?

A bicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. The mass of the rider and his bike is 88.0 kg. Sea level is the zero level for measuring gravitational potential energy.

A police car drives with a constant speed of 60 m/h. How long will it take to travel a distance of 180 kilometers?

What is a hurricane?

How does the theory of natural selection explain the diversity of life?

What law states that when matter undergoes a physical or chemical change, no atoms are created or destroyed?

Which statement would be a valid argument in favor of using nuclear power? There are few negative impacts from mining the fuel. Reactors are safe from natural disasters. There are little to no waste products from fission.

How would you convince somebody that the momentum of an isolated system is constant?

Object A has a charge q on it, object B has a charge q on it, and Object C has a charge 2q on it. These charges are arranged, one each, at the vertices of an equilateral triangle. Which charge has the greatest magnitude electric force on it? a. Ab.