Does an increased volume of a substance increase its density?

Answers

Answer 1

Answer: hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
idk

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In science, theories tend to be ______________________ than hypotheses. Answers: A) more speculative B) more empirical C) less scientific D) more experimental E) broader in scope

Answers

Answer:

More experimental.

Explanation:

A hypothesis is formulated on the basis of some observed, but unexplained behavior. It is usually preceded by an exclamation from the researcher of "What the heck? Did you see that? It went up and turned blue, when it should have gone sideways and turned red."

The observed behavior was unexpected, so the researcher wants to know why. The first place to start is with an hypothesis: an explanation of what might be happening. It must be a "testable" hypothesis - an explanation that provides an avenue for testing whether the hypothesis may contain some truth. E.g., the lab tech created sufficient momentum in the sample to make it react when he/she moved it from the table to the cabinet.

This can be tested. Just do the same experiment but control movement of the sample. If the reaction does NOT occur under the new conditions, then one might advace the observation as a theory. Ni=ot proven, but the data are consistent with the hypothesis. A theory is based on some level of experimental results, to move it up from an hypothesis.

An extended period when temperatures are well below average is known as a/an A. drought.
B. ice age.
C. cold wave.
D. draft.

Answers

It would be a cold wave.
Ice ages occur when the temperatures are extremely cold.(long-term)

Depends on the "period". If weeks, months, or years, then it's a cold wave. If centuries, then you've got yourself an ice age.

A wedge is simply a form of an inclined plane. TRUE or FALSE.

Answers

The statement about "A wedge is simply a form of an inclined plane" is false. The pivot joint is the lever and the wedge are the blades of the scissors. This is to efficiently exert force on an object to cut it.

The magnitudes of the vectors in this diagram are vx/y = 17.94 meters/second and vy/z = 3.46 meters/second. Find vx/z.

Answers

It's very hard to make out the diagram. I think we need
to see it clearly in order to answer the question.

Answer:

See image

Explanation:

Plato

What common household substances can turn blue litmus paper red?

Answers

There is a few things. The things that turn it red is acids.

Properties of acids include:
*Tasting sour
*Conduct electricity
*Corrosive

A few household acids would be lemons, vinegar, salt, and some sodas.

A crane raises a 150 N weight to a height of 2.0 m in in 5.0 s. The crane does work at a rate of

Answers

The work done is (force) x (distance) = (150N) x (2m) = 300 joules.

The crane does the work at the rate of (300 J) / (5 sec) = 60 joules per second.

That rate ... (work done) / (time to do the work) ... is called power.

That 60 joules per second is called 60 watts .

Answer:

60. W

Explanation:

60 Watts

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You're driving down the highway late one night at 19 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s , and the maximum deceleration of your car is 10 m/s² . How much distance is between you and the deer when you come to a stop? What formulas do you use?