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
laiz [17]
3 years ago
12

Albert and Emmy are looking to purchase some new spaceships. They pick out two identical single-seat space racers and take them

out to space for a test drive. After flying around for a while, they decide to do some experiments. As Albert flies past Emmy at a very high but constant velocity, Emmy measures the length of Albert's ship and compares it to the length of her own ship.
Emmy observes that Albert's ship is __________ her own ship.

At the same time, Albert observes Emmy's ship and compares it with his ship.

Albert observes that Emmy's ship is ___________ his own ship.
Physics
2 answers:
Bad White [126]3 years ago
8 0

1) option B. Emmy observes that Albert's ship is shorter than her own ship.

2) option B. Albert observes that Emmy's ship is shorter than her own ship

Explanation:

Applying the principle of length contraction where the length of a moving object is seen as being contracted (shorter than its real length),the length of the object in the rest frame does not appear to change.

In this case, the space racer in his own ship measures a reduced length of the other ship flying past it at a high but constant speed. Moreover, the space racer in a ship measures the real length of his own ship and not a contracted length.

Therefore, Emmy will observe that Albert's ship is shorter than her own ship while Albert will also observe that Emmy's ship is shorter than his own ship. It is the principle of length contraction that holds

Annette [7]3 years ago
7 0

Answer:

shorter than,

shorter than

You might be interested in
14. Why is it cooler to wear a white shirt than a black shirt on a hot, sunny day?
zzz [600]

Answer:

White or lighter colored, shirt REFLECTS most of the visible wavelengths or all colors of light while a black or dark shirt ABSORBS more wavelengths.

So, Absorbed radiation is converted into heat, making the darker or black shirt warmer to wear.

 

<u>-TheUnknownScientist</u><u> 72</u>

7 0
3 years ago
Running with an initial velocity of +11m/s, a horse has an average acceleration of -1.81m/s 2 . How long does it take for the ho
Ronch [10]

Answer:

2.49 seconds

Explanation:

From the question,

a = (v-u)/t............................ Equation 1

Where a = acceleration, v = final velocity, u = initial velocity, t = time

Make t the subject of the equation

t = (v-u)/a.......................... Equation 2

Given: v = 6.5 m/s, u = 11 m/s, a = -1.81 m/s²

Substitute these values into equation 2

t = (6.5-11)/(-1.81)

t = -4.5/-1.81

t = 2.49 s

6 0
3 years ago
How does increasing the<br> speed of an object change its<br> momentum?
aleksley [76]

Answer:

When you increase speed, you add energy and increase momentum as it would require more energy to change, stop or reverse the object's direction of travel than before the speed increase. Increasing the speed increases the momentum proportionally.

Explanation:

3 0
4 years ago
Read 2 more answers
The acceleration due to gravity on the moon is 1.6 m/s2. What is the gravitational potential energy of a 1200-kg lander resting
faltersainse [42]

Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The equation for gravitational potential energy is GPE = mgh. 


GPE = 1200(1.6)(350) = 672000 J


Hope this answers the question. Have a nice day.

5 0
3 years ago
Read 2 more answers
Materials that conduct heat and electricity well in the solid state result when
MA_775_DIABLO [31]
Materials that conduct heat and electricity well in the solid state result when metals bond with metals. <span>This type of bonding is called metallic bonding. Metallic bonding is when positive ions (metals) are in a 'sea of negative electrons'. The electrons are delocalised, which means they can move around easily and carry charge, and this enables it to conduct electricity, even in a solid state.</span>
8 0
4 years ago
Other questions:
  • Which of these is an environment effect of deforestation and farming
    14·2 answers
  • How does newton 3 laws relate to an egg drop
    12·2 answers
  • If she asks you to cut a strip of pie crust long around the outside of the pan, how long does it need to be? (Remember c/d =3.14
    12·1 answer
  • Pendulum clock. Your friend is trying to construct a clock for a craft show and asks you for some advice. She has decided to con
    14·1 answer
  • Incident rays parallel to the axis of a concave mirror reflect parallel to the axis.
    13·1 answer
  • A one-dimensional infinite well of length 175 pm contains an electron in its third excited state. We position an electron-detect
    8·1 answer
  • Easy science question please help. Will give brainliest
    8·2 answers
  • A
    5·2 answers
  • HELPPP!! Thanks!
    8·1 answer
  • The moving charge in the wire causes the compass to deflect; this is because
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!