How is heat transferred through empty space

Answers

Answer 1
Answer: I'm earth the o zone layer is keeping it warm but not hot or cold and the heat transferred by heat waves that is why we use sunscreen because during summer they can hurt us.

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The boiling point of the crystalline mass is 50° Celsius 200° Celsius 300° Celsius 400° Celsius
give 2 examples of events that show that the speep of sound is very much slower than the speed of light
Label distance between AB, BC and CD.The choices are :Constant acceleration.Decreasing acceleration.Increasing acceleration.Moving backwards at constant speed.Moving forward at constant speed.Stationary.​
HelppSuppose the expected value for a mass is exactly one kilogram. A lab group checked the mass and made the following measurements:2.01 kg, 2.02 kg, 1.99 kg, 1.97 kgWhich answer choice BEST describes these measurements? A. accurate and precise B. inaccurate and precise C. accurate and imprecise D. inaccurate and imprecise

Of course, I'll be the same like anyone else. mARkInG bRaInlESt iF cORrEcT

Answers

Answer:

(a) Brightness if the bulb will reduce.

(b) The bulb will remain the same

(c) The brightness of the bulb will increase

C because i’m so good at biology and the anatomy of the human body would have sex

why do you think accurate measurement of time became possible much after accurate measurement of length and mass

Answers

Accurate measurements of time become possible after accurate measurement of length and mass because time taken by a heavy body to move a certain distance is more,and time taken by a light body to move a certain distance is less.

What is the acceleration due to gravity of a feather? Is it smaller than that of an iron ball?

Answers

A hammer and a feather will fall with the same constant acceleration if air resistance is considered negligible. This is a general characteristic of gravity not unique to Earth, as astronaut David R. Scott demonstrated on the Moon in 1971, where the acceleration due to gravity is only 1.67 m/s2.

Final answer:

The acceleration due to gravity is the same for all objects near the surface of the Earth, regardless of their mass. The effect of air resistance may make it appear that the acceleration of a feather is smaller than that of an iron ball.

Explanation:

Acceleration due to gravity refers to the rate at which an object falls toward the Earth under the influence of gravity. The value of acceleration due to gravity varies depending on the location and mass of the object.

In general, the acceleration due to gravity is the same for all objects near the surface of the Earth, regardless of their mass. This means that the acceleration due to gravity of a feather is the same as that of an iron ball. However, due to the difference in air resistance, a feather will experience a much smaller net force compared to an iron ball, which may give the illusion of a slower acceleration.

Therefore, the acceleration due to gravity of a feather is not smaller than that of an iron ball, but the effect of air resistance makes it appear so.

Learn more about acceleration due to gravity here:

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Compare contrast speed and velocity

Answers


"Speed" is the rate at which distance is being covered .... the ratio
of distance covered to the time it takes.

"Velocity" is the rate at which distance is being covered .... the ratio
of distance covered to the time it takes ... AND the direction in which
it is covered.  'Speed' with the direction of the motion.


Which of the following statements best explains why it is warmer at the equator than at the north pole?A. The equator has a larger area than the North Pole
B. The equator is closer to the sun than the North pole
C. The equator receives more direct sunlight than the north pole.
D. The equator has more hours of daylight per year than the North Pole.

Answers

Answer:

C. The equator receives more direct sunlight than the north pole.

Explanation:

As we all know that earth is revolving around the sun. But the earth is also tilted at the angle of 23.5°, which means that the equator part of earth is facing sun directly while the north pole is tilted. As a result of this tilt, the north pole receives the rays of sun at certain angle which reduces the intensity and effect of sunlight. While the equator part, since it is facing the sun, receives sunlight at almost perpendicular. So, the absorption of heat by the earth's atmosphere and land is pretty much higher in equator as compared to north pole.

The sun is pointing more towards the equator than any other part of the Earth, so it would be C.

30 Points 4 correct answer!!! ^u^This chart lists information from the periodic table about several elements.

Which answer correctly fills in the blanks?


A.
Lithium has an atomic number of 3; boron has 5 electrons; oxygen has 8 neutrons; neon has an atomic mass of 20.

B.
Lithium has an atomic number of 4; boron has 6 electrons; oxygen has 8 neutrons; neon has an atomic mass of 20.

C.
Lithium has an atomic number of 7; boron has 11 electrons; oxygen has 16 neutrons; neon has an atomic mass of 10.

D.
Lithium has an atomic number of 73; boron has 5 electrons; oxygen has 8 neutrons; neon has an atomic mass of 30.

Answers

lithium has an atomic number of 3 so right away all the answer choices are eliminated except A., and oxygen does have 8 neutrons, boron 5 electrons, and neon a mass of 20
A is the answer because lithium has an atomic number of 3