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3 years ago

What is the relationship between air pressure and air temperature?

1 answer:

8 0

The relationship between the two is that air temperature changes the air pressure. For example, as the air warms up the molecules in the air become more active and they use up more individual space even though there is the same number of molecules. This causes an increase in the air pressure.

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Enter an expression for the force constant for the floating raft, in terms of L, g, and the density of water, ρ.

andriy [413]

Answer:

K = ρL²g

Explanation:

Consider L as the length of the raft inside the water when the raft is displaced through additional distance y;

Then:

F = upthrust ( restoring force) = weight of the liquid displaced.

$F = V_{\omega} \rho_{\omega} g= A y \rho_{\omega} g$

where;

A = L²

$\rho_{\omega} = \rho$

F = ky.

Then,

$Ay \rho g = ky$

$L^2y \rho g = ky$

Divide both sides by y

K = ρL²g

3 0

3 years ago

Which of the following is the best definition of energy?

Montano1993 [528]

Energy is the capacity to do some type of work

8 0

3 years ago

0.042 kg … ________________grams

olchik [2.2K]

Answer:

42 grams

Explanation:

you multiply the value by 1000 to get your answer

6 0

3 years ago

Read 2 more answers

What happens to parallel light rays that strike a concave lens?

torisob [31]

Answer:

They diverge on refraction

Explanation:

When parallel light rays strike a concave lens, they will diverge that is they spread out .

Concave lens is also known as diverging lens, which means that when parallel rays of light strike on it, the lens spreads out the light rays ( that is it diverges the rays of light) that are refracted through it.

At the middle of concave lens is thinner.

When light is passes through the lens they diverge it or spread out.

The concave lens causes light rays to bend away or diverge from its axis since the concave lens is a diverging lens.

5 0

3 years ago

Isolating a variable in two equations is easiest when one of them has a coefficient of 1. Let's say we have the two equations 3A

xxTIMURxx [149]

Answer:

$B=3A-5$

Explanation:

Variable Isolation

It's a common practice when dealing with equations that we have to isolate one variable in terms of other variables and/or constants. The isolation of the variable usually implies adding, subtracting, multiplying or dividing by constants. The following example shows how to isolate the A:

$2A+3B=-4\\\\2A=-4-3B\\\\\displaystyle A=\frac{-4-3B}{2}$

We are required to find the equation where the variable has a coefficient of 1 and isolate it. The following equation fits into the description:

$3A-B=5$

Isolating B:

$B=3A-5$

3 0

3 years ago