Are cells live or dead? a. True b. False

Answers

Answer 1

Answer:

Scientists consider them the smallest form of life. Yes, they are alive

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What is the mass of an object weighing 63 N on Earth?

Answers

Weight expressed in Newtons is expressed in the equation whereby Weight= the mass of an object * the force of gravity. The force of gravity on earth is a constant 9.8 meters per second squared. Therefore if weight (w) = 63 N and the force of gravity is 63 N then the mass must equal 6.43 kg. Because the equation for weight is w=mg so 63 N (w) = m * 9.8 m/s^2.

What is word meaning "heated to a glow"?

Answers

I think the word you want is "incandescent".

What forces are acting on a book lying on the table? Are action-reaction forces involved in this situation?

Answers

There is a weight force acting on the book downwards. There is a normal contact force also on the book upwards. These are equal and opposite. These two force are NOT an action-reaction couple (they are different types, they both act on the book)

What does trajectory mean?

Answers

Trajectory means the path that something follows.

It's almost always used to describe things that are dropped, thrown, or shot,
like the trajectory of baseballs, golf balls, and canon balls, or other things moving
under the influence of gravity, like comets, asteroids, and planets. But it doesn't
have to be the path of something sailing overhead from one place to another.
You'll also hear about a person's 'trajectory through life'.

A trajectory is the path that a moving object follows through space as a function of time. The object might be a projectile or a satellite

The distance-time graph for a vehicle standing on a road side will be

Answers

Answer:

Explanation:

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What happens to an earthquake's S-waves when they strike the core?A) They bounce off
B) They are absorbed
C) The change into P-waves
D) They change into L-waves

Answers

Answer:

B) They are absorbed

Explanation:

B is correct because S waves can only travel through solid materials. When they hit liquid materials they are absorbed in and undetectable.

Answer:

B) They are absorbed

Explanation:

When they hit the liquid core, S-waves are no longer able to be detected. While P-waves bounce off the liquid core, S-waves are absorbed at the core.

Other Questions

According to the periodic table, the average atomic mass of helium is A) 2 amu. B) 2.0026 amu. C) 4.0026 amu. D) 6.0026 amu.

The total amount of energy in a closed system stays the same. t/f

What is the unit of work? Explain whether the unit of work is a fundamental uintor derived unit1.What do you mean by a unit?2.unit or a derived unit.are the fundamental units used in physics?al Bureau of Weights and Me

The total potential and kinetic energy of all the microscopic particles in an object make up itsa. nuclear energy. b. chemical energy. c. electric energy. d. thermal energy.