Why might steps in scientific methods be skipped or changed

1. Which of the following is NOT a vector quantity? (a) Displacement. (b) Energy. (c) Force. (d) Momentum. (e) Velocity.

A sled is at rest at the top of a high slope the sled has a mass if 45 kg calculate the potential energy using the formula P equals MGH

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 1.01 s after passing his window. Roger's room is on the third floor, 15 m above the sidewalk.

The items listed below were found in a science classroom. - a heart made of plastic with many of its parts labeled. - clay formed to look like Earth and other planets. - a giant plastic plant cell with removable cell parts.

When measuring wellness, you must consider

If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be? answer: Unit:

35. An object of mass m moving at speed v0 strikes an object of mass 2m which had been at rest. The first object bounces backward along its initial path at speed v0.

Calculate the change in the canister pressure when the outside temperature changes from 72 ∘f to 80 ∘ f.

Give two examples of motion related to civil engineering.

The waves shown below represent sound waves. Which of the waves would have the highest-pitched sound?