What is a difference between a law and a hypothesis?
a. a law describes how two variabl...
What is a difference between a law and a hypothesis?
a. a law describes how two variables affect each other, but a hypothesis only discusses one variable.
b. a law must be testable so that it can be proven, but a hypothesis is an untestable explanation.
c. a hypothesis includes an explanation for why two variables affect each other, but a law only describes how they affect each other.
d. a hypothesis may or may not be testable, but a law is an untestable explanation of why two variables affect each other and cannot be proven.
Answers: 3
Physics, 21.06.2019 22:50
Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.
Answers: 2
Physics, 22.06.2019 12:00
The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?
Answers: 1
Physics, 22.06.2019 14:00
Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
Answers: 1
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