All categories

4 years ago

What is the relashinship between the mass and size of a planet?

1 answer:

6 0

Size is in relation to distance(how far across or around)mass is measuring how much there is, mass is related to both size and DENSITY, EX: A balloon has a large size but a tiny mass, compared to a bowling ball, which has a similar size but a much larger mass

You might be interested in

Diamond has a high index of refraction at about 2.4, which helps account for its sparkle. How fast does light travel through a d

wariber [46]

Answer:

$1.25 \cdot 10^8 m/s$

Explanation:

The speed of light through a medium is given by:

$v=\frac{c}{n}$

where

$c = 3 \cdot 10^8 m/s$ is the speed of light through vacuum

n is the index of refraction of the material

In this case, diamond has a refractive index of n = 2.4, so the speed of light in diamond is

$v=\frac{3\cdot 10^8 m/s}{2.4}=1.25\cdot 10^8 m/s$

6 0

3 years ago

The two structural members, one of which is in tension and the other in compression, exert the indicated forces on joint o. dete

melisa1 [442]

We're going to remedy it with the parallelogram law.
$\alpha$ = one hundred eighty - 30 - 70 = eighty degrees
R = sqrt(2^2 + 3^2 - 2(2)(three) cos(80)
R = three.30 kN, we can conclude now that the value of the ensuing of R is 3.30 kN

sin $\beta$ /3 = sin(eighty)/three.304 = 63.4 stages

3.3 kN
180 + 33.4 = 213.4 degrees
63.4 - 30 = 33.4

4 0

4 years ago

At a constant temperature, the volume of a gas doubles when the pressure is reduced to half of its original value. This is a sta

djyliett [7]

Answer: Boyle’s law

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

$P\propto \frac{1}{V}$ (At constant temperature and number of moles)

As pressure is decreased to half, the volume is increased to doubled.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

$V\propto T$ (At constant pressure and number of moles)

Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

$P\propto T$ (At constant volume and number of moles)

Combined gas Law: combining the three laws:

$PV\propto T$

6 0

4 years ago

Read 2 more answers

I NEED HELP I AM SO CONFUSED, WILL GIVE BRAIN.

MakcuM [25]

Answer:

210

Explanation:

A ball rolls horizontally off the cliff at a speed of 30 m/s. It takes 7 seconds for the ball to hit the ground. What is the height of the cliff and the horizontal distance traveled by the ball?

S = (1/2)*9.8 m/s^2 * 7^2 = 240.1 m if the ball is very dense so air resistance, and therefore terminal velocity, can be ignored.

S = v * t = 30 m/s * 7 s = 210 m for the horizontal distance, again assuming negligible air resistance.

5 0

3 years ago

A house is maintained at 1 atm and 24°C, and warm air inside a house is forced to leave the house at a rate of 90 m3/h as a resu

lisov135 [29]

Hope it helps : )

Specific heat of air at constant pressure = 1.005KJ/kg-K Apparently the hot air leaves the house while equal quantity of the cool air passes inside (Neglecting the small specific volume changes between the hot and the cold air) So the situation can be sampled as a scenario where there is continuous draw down of the thermal energy from the air.

3 0

4 years ago