PHYSICS HIGH SCHOOL

Which type of star has the widest range in brightness and surface temperature?a. giant
b. white dwarf
c. neutron
d. main sequence

Answers

Answer 1
Answer:

Answer:

the best answer is Giant.

Explanation:
Answer 2
Answer:

I believe It's...

d. main sequence

Related Questions

What are the divisions within a shell called
a graph depicts force versus position. what represents the work done by the force over the given displacement?
If an airplane is traveling at 500 mph and a fly is flying forward inside the airplane is the fly traveling faster than the airplane?
If an object moves in uniform circular motion in a circle of radius R = 1.0 meter, and the object takes 4.0 seconds to complete ten revolutions, calculate the centripetal acceleration.
Which term best describes the important pieces of information that scientists gather and record during an experiment?

What is the purpose of the CETI program?a. to listen for disturbances in the earth's crust
b. to listen for unlawful broadcasts from rogue nations
c. to listen for signals from outer space
d. to listen for sounds emitted from the ocean

Answers

The purpose of the CETI program is c. to listen for signals from outer space. CETI stands for "Communication with ExtraTerrestrial Intelligence", and is a program dedicated to the search for extraterrestrial beings and intelligence. It mainly listens to sounds emitted from outer space, and analyzes/deciphers them in case they are part of another civilization.

The Supreme Court decision in Marbury v. Madison established which of these?

Answers

Answer:

The Supreme Court decision in Marbury v. Madison established the principle of judicial review. This means that the Supreme Court has the power to declare laws or actions of the executive and legislative branches unconstitutional if they violate the Constitution. The decision was made in 1803 and is considered a landmark case in American law and politics. It established the idea that the judiciary is a coequal branch of government and has the responsibility to interpret the Constitution and ensure that the other branches of government do not exceed their constitutional authority.

Explanation:

A 76.5 kg cross-country skier skiing on unwaxed skis along dry snow at a constant speed of 4.00 m/s experiences a force of friction of -60.0 N.  What is the coefficient of friction between unwaxed skis and dry snow?a. 0.08
b. 0.78
c. 1.28
d. 12.5

Answers

The force of friction = (weight) x (coefficient of friction)

Skier's weight = (mass) x (gravity) = (76.5) x (9.8) = 749.7 N

Force of friction = (749.7) x (coefficient of friction) = 60.0 N

Coefficient of friction = 60 / 749.7 = 0.08  (rounded)

Choice-'A' is the closest choice offered.

The multiple reflection of a single sound wave is a/ana. echo.
b. reverberation.
c. refraction.
d. diffraction.

Answers

A single reflection, like shouting at the side of a mountain and hearing 
your voice come back to you, is an 'echo'.

Multiple reflection, like clapping your hands once inside a large room, 
is 'reverberation'.

In stars mor massive than the sun, fusion continues until the core is almost all....

Answers

In stars more massive than the sun, the core temperature is hotter, which allows for fusion of more complex elements.

Most of the fusion occurs in the core.

In stars more massive than the sun, fusion continues through Deuterium, Carbon, and finally reaching iron/nickel.

Up to this point, the fusion reaction was endothermic, which means that the energy expended to produce the fusion reaction was exceeded by the energy produced in the reaction.

Fusion past iron is exothermic, and therefore the star will be able to survive by fusing elements heavier than iron.

After the core is almost entirely iron, the star is no longer in the Main Sequence.

So, fusion in stars more massive than the sun continue fusing until the core is almost entirely iron.

What is the most current NASA mission on Mars?

Answers

The most recent NASA mission on Mars is Mars Science Laboratory. Its key component was Curiosity rover.
Rover has celebrated his first landing anniversary yesterday (Martian year, that is 687 Earth days).
Curiosity managed to find traces of water on Mars, so it's possible that there used to be some life on Mars.
Since landing Curiosity moved only about 5 miles form the landing site (it suffered wheel damage). 
The mars rover bot i.e curiosity has been send latestly by NASA on mars. You can also see some pics on net if are doing some project or something.
Other Questions
What is the energy of work done lifting 2kg mass rocket to a height of 130 m
One form of energy changes to multiple other formsa. single transformationb. multiple transformation
Special features allow newspapers and news stations to target more specific audiences than headline news alone. a. Trueb. False
Imagine you are holding an apple. Does this apple have energy?how do you know?