A scientific law is

A. the same as a hypothesis

B. a description of natural events

C. an explanation of a scientific observation

D. the conclusion of a scientific experiment.?

How do u know if a wave is a mechanical wave?

Which element was discovered by joseph priestley to be what his contemporaries called ""dephlogisticated air""?

A brick is thrown from a wall that is 19.2 m above the ground and hits the ground 5.00 s later. What was the initial velocity of the brick?

A particle with charge q = + 5e and mass m = 8.2*10-26 kg is injected horizontally with speed 1.1*106 m/s into the region between two parallel horizontal plates. The plates are 26 cm long and 1.1 cm apart.

Describe briefly one problem caused by the expansion of metals

7. What type of mineral can scratch glass, but cannot scratch steel? A. Gypsum B. Diamond C. Feldspar D. Fluorite

What factors determine the electrostatic force between two objects?

How many watt-hours does a 80 watt light bulb use if it runs for 3.5 hours?

A series circuit contains two devices, one with a resistance of 10 ohms and one with a resistance of 4 ohms. If the generator supplies a voltage of 42 V, what is the magnitude of the current? A. 2 A B. 3 A C. 1.75 A D. 1.33 A

What is the relationship between speed and the slopes of the lines on a graph