The small particles that produce a streak of light upon entering earth’s atmosphere are called

Answers

Answer 1

Answer: They are called meteors... i just took the test

Answer 2

Answer:

Explanation:

When a meteoroid enters the earth's atmosphere at high speed, a streak of light called meteor is observed. This light effect is produced by the ionization of air molecules in the upper atmosphere (at altitudes from 76 to 100 km). Most of these are the size of a grain of sand.

Related Questions

Which of the following terms helps to describe an ecosystem?populationnichehabitatall of the above
The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the engine compressor without any work or heat interactions. Calculate the velocity at the exit of a diffuser when air at 100 kPa and 30°C enters it with a velocity of 357 m/s and the exit state is 200 kPa and 90°C. The specific heat of air at the average temperature of 60°C = 333 K is cp = 1.007 kJ/kg·K.
Dark matter may explain _____.A.unexpected orbital velocities of stars in galaxies B.the source of energy that fuels stars C.the expansion of the universe D.the origin of life E.what came before the big bang
Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed intoA) electrical energy. B) mechanical motion. C) heat and light energy. D) electrical and heat energy.
a ball has mass of 0.1 kg and an initial velocity of 20 m/s the ball is given an acceleration of 30 m/s^2 for 5s what is the net force on the ball during acceleration

What would happen if a person who is wearing a heavy winter jacket were to place a thermometer inside the jacket next to his or her skin? What would happen if we took the same jacket, after it had been hanging in a closet, and placed a thermometer inside?

Answers

Answer:

Explained.

Explanation:

Let me explain the two cases in by one.

(1) When Person wearing a jacket, heat from his or her body is going to get trapped inside his or her jacket to keep this person warm when a thermometer is placed inside, it would indicate a higher temperature on the scale.

(2) When Jacket is Hanging in a closet, its temperature would be roughly close to room temperature and when we would place a thermometer it would not indicate any change on its scale.

Several teenagers swim toward a rectangular, wooden raft that is 2.00 m wide and 2.50 m long. If the raft is 9.80 cm thick, how many 75.0 kg teenage boys can stand on top of the raft without the raft becoming submerged? Assume the wood density is 650 kg/m3.

Answers

Answer:

Explanation:

length of the raft, L = 2 m

Width of the raft, W = 2.5 m

height of the raft, H = 9.8 cm = 0.098 m

mass of each person, m = 75 kg

Density of wood = 650 kg/m^3

volume of raft, V = L x W x H = 2 x 2.5 x 0.098 = 0.49 m^3

let there are N persons

According to the principle of floatation

Buoyant force acting on the raft = True weight of the raft

Volume x density of water x g = volume x density of wood x g + N x mg

0.49 x 1000 x g = 0.49 x 650 x g + N x 75 x g

490 = 318.5 + N x 75

N = 2.28

So, the maximum number of person is 2.

What is the term used to describe the energy needed to get a reaction started

Answers

Activation Energy is the amount of energy needed to get a reaction started.

Una sustancia radioactiva, cuya temperatura es inconstante, aumenta su temperatura en 30ºF, luego disminuye e 40ºC, luego aumenta en 12R y por último disminuye en 10K; entonces la temperatura final de dicha sustancia: a) No varia b) Aumenta en 24R c) Disminuye en 48R d) Aumenta en 48R e) Disminuye en 24R

Answers

Answer:

What the heck

Explanation:

Scott cuts a one meter long wire into five equal parts. What is the length of each part of the wire? (2 points) 0.02 centimeters 0.20 centimeters 20 centimeters 200 centimeters

Answers

20 centimeters. 100 centimeters in a meter. 100/5= 20

Answer: The length of each part of the wire 20 centimeter.

Explanation:

Length of the wire = 1 m

On dissecting the 1 meter wire into equal five parts = $(1 m)/(5)$

The length of the each part will be = $(1 m)/(5)=0.2 m$

1 meter = 100 centimeter

So, 0.2 meter = $0.2* 100 centimeter=20 centimeter$

The length of each part of the wire 20 centimeter.

Janice is unsure about her future career path. She has grown up on her family farm, but she is also interested in medicine. Janice becomes a member of the FFA and SkillsUSA to try to learn more about the fields and decide between them. What would be more helpful to Janice? * not joining SkillsUSA and joining HOSA instead
* not joining SkillsUSA and joining BPA instead
* not joining FFA and joining BPA instead
* not joining FFA and joining HOSA instead

Answers

Answer:

d not joining FRA and joining HOSA INSTEAD

Other Questions

a car requires 1x10^8J of energy to drive 30km. calculate how many kilometers you could hypothetically drive using the energy contained in the rest mass of 100mg of fuel.

using kepler's 3rd law and newton's law of universal gravitation, find the period of revolution p of the planet as it moves around the sun. assume that the mass of the planet is much smaller than the mass of the sun.

If you had two forces, one with a magnitude of 25 N and the the other with a magnitude of 100 N, what would be the maximum net force these forces could exert on an object?

suppose you sit on a rotating stool, holding a big mass in each outstretched hand. if you suddenly drop the masses, will your angular velocity increase, decrease, or stay the same? explain.