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Snezhnost [94]
3 years ago
13

HELP ASAP

Physics
1 answer:
Vlad [161]3 years ago
5 0

Answer:

You can but it depends on how you’ll state your opinion.

Explanation:

Hope it helped :)

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Please help me give a summary for trees lessons as I (cody) have a quiz Tommorow
zysi [14]

Answer:

Conduction is heat transfer through stationary matter by physical contact. (The matter is stationary on a macroscopic scale—we know that thermal motion of the atoms and molecules occurs at any temperature above absolute zero.) Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction.

Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.

Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of Earth by the Sun. A less obvious example is thermal radiation from the human body.     I hope this helps you

Explanation:

3 0
3 years ago
Read 2 more answers
Describe and explain the potential energy changes that occur during the formation of a covalent bond
Yanka [14]
<span>when two hydrogen atoms approach each other the potential energy of the combination becomes lower and lower until it reaches a minimum value of -436 kl/mol at a distance of 75 pm</span>
8 0
4 years ago
How do scientist know how much the world really rotates​
kotykmax [81]
“The Smithsonian pendulum, like all pendulums, moved in accordance with Foucault’s sine law, which predicts how much a pendulum’s path will distort each day based on its latitude. Absent any exterior forces, a pendulum would swing back and forth in a single plane forever—there would be no gradual angular shift. But the Earth is rotating, so the story isn’t that simple.

Since all points on Earth’s surface rotate as a unit, it follows that those located on the wider portions of the planet—nearer to the equator—must cover more meters each second (i.e., go faster) to “keep up” with the points tracing smaller circles each day at the extreme northern and southern latitudes. Though they don’t feel it, a person standing in Quito, Ecuador, is moving with appreciably higher velocity than one in Reykjavik, Iceland.

Because each swing of a pendulum takes it from a point farther from the equator to a point nearer to the equator and vice versa, and the velocities at these points differ, the path of the pendulum is subtly distorted with every swing, gradually torqued away from its original orientation. The extent of this effect depends on where on Earth the pendulum is swinging.

At the North Pole—where small changes in latitude have big implications—the path traced by a pendulum would shift through a full 360 degrees in a mere 24 hours, explains Thompson. At the equator, meanwhile, a pendulum’s motion would not be seen to distort at all.” From the Smithsonian Magazine
4 0
3 years ago
An Earth satellite moves in a circular orbit 561 km above Earth's surface with a period of 95.68 min. What are (a) the speed and
crimeas [40]

Explanation:

It is given that,

Radius of earth, r = 6371 km

An earth satellite moves in a circular orbit above the Earth's surface, d = 561 km

So, radius of satellite, R = 6371 km + 561 km = 6932 × 10³ m

Time taken, t = 95.68 min = 5740.8 sec

(a) Speed of the satellite is given by :

v=\dfrac{d}{t}

d = distance covered

For circular path, d = 2πR

v=\dfrac{2\pi \times 6932\times 10^3\ m}{5740.8\ sec}

v = 7586.92 m/s

(b) Centripetal acceleration is given by :

a=\dfrac{v^2}{R}

a=\dfrac{(7586.92\ m/s)^2}{6932\times 10^3\ m}

a=8.3\ m/s^2

Hence, this is the required solution.

3 0
4 years ago
If the area of the plates of a parallel plate capacitor is halved, and the separation between the plates tripled, all while the
Scorpion4ik [409]

Answer:

Explanation:

The capacitance of a parallel plate capacitor is given by

C=\frac{\epsilon _{0}A}{d}

where A is the area of plates and d is the separation between the plates.

Now the area is halved and the separation is tripled.

The new capacitance is

C' = C / 6

Initial potential energy is given by

U=\frac{q^{2}}{2C}

here the charge is constant

The new energy is given by

U'=\frac{6q^{2}}{2C}

U' = 6 U

The energy becomes six times the initial value.

3 0
3 years ago
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