1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irina1246 [14]
3 years ago
11

Leah is moving in a spaceship at a constant velocity away from a group of stars. Which one of the following statements indicates

a method by which she can determine her absolute velocity through space?
A) She can measure her increases in mass.
B) She can measure the contraction of her ship.
C) She can measure the vibration frequency of a quartz crystal.
D) She can measure the changes in total energy of her ship.
E) She can perform no measurement to determine this quantity.
Physics
1 answer:
OLEGan [10]3 years ago
5 0

Answer:

E) She can perform no measurement to determine this quantity.

Explanation:

A spacecraft is a machine used to fly in outer space.

According to Isaac Newton's third law of motion, every action produces an equal and opposite reaction. When fuel is shoot out of one end of the rocket, the rocket moves forward for which no air is required.

As Leah is moving in a spaceship at a constant velocity away from a group of stars, she cannot measure to determine this quantity.

You might be interested in
Please someone help me lol
Makovka662 [10]
From Largest to Smallest:

Earth > Biosphere > Biome > Ecosystem > Community > Population > Organism > Organelles 

Hope this helps!

7 0
3 years ago
A 0.050 kg bullet strikes a 5.0 kg wooden block with a velocity of 909 m/s and embeds itself in the block which fies off its sta
serg [7]

Answer:

The final velocity of the bullet is 9 m/s.

Explanation:

We have,

Mass of a bullet is, m = 0.05 kg

Mass of wooden block is, M = 5 kg

Initial speed of bullet, v = 909 m/s

The bullet embeds itself in the block which flies off its stand. Let V is the final velocity of the bullet. The this case, momentum of the system remains conserved. So,

mv=(m+M)V\\\\V=\dfrac{mv}{m+M}\\\\V=\dfrac{0.05\times 909}{0.050+5}\\\\V=9\ m/s

So, the final velocity of the bullet is 9 m/s.

5 0
3 years ago
What is black body radiation? Explain in detail.
tangare [24]

An object that absorbs all radiation falling on it, at all wavelengths, is called a black body. When a black body is at a uniform temperature, its emission has a characteristic frequency distribution that depends on the temperature. Its emission is called black-body radiation

hope it helps

3 0
2 years ago
An airplane, starting from rest, moves down the runway at constant acceleration for 18 s and then takes off at a speed of 60 m/s
ruslelena [56]

Answer:

a =3.33 m/s²

Explanation:

given,

initial speed of Plane, u = 0 m/s

final speed of plane, v = 60 m/s

time of the acceleration, t = 18 s

average acceleration of the plane, a = ?

average acceleration is equal to change in velocity per unit time.

a = \dfrac{v - u}{t}

a = \dfrac{60 - 0}{18}

a = \dfrac{60}{18}

     a =3.33 m/s²

Hence, average acceleration of the plane is equal to a =3.33 m/s²

4 0
3 years ago
Read 2 more answers
You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at a
barxatty [35]

Answer:16.3

Explanation:the

Explanation is in words

on a pic and i showed  extra proof

3 0
3 years ago
Other questions:
  • A school's new pump can fill the swimming pool in 2 hours, and the old pump takes 5 hours. What is the time required in hours to
    15·1 answer
  • Which model below correctly represents an object with a correct pair of magnetic domains?
    7·1 answer
  • How are igneous rocks formed?<br> step by step please.
    5·1 answer
  • You put a new battery into your MP3 player and listen to a song. What are the energy transformations taking place in this system
    11·1 answer
  • An inclined plane allows you to do ________ work with ________ force.
    8·2 answers
  • If two objects are the
    5·1 answer
  • Which of the following is a physical state of matter? *<br> A mass<br> B volume<br> C liquid
    9·1 answer
  • Create an energy path in the Gizmo, starting at the Sun. For each step of the path, describe the energy conversion that takes pl
    11·1 answer
  • What is the work required to lift a 10 kg box off the ground to a height of<br> 5.0 m?
    6·1 answer
  • Which of the following statements is true?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!