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
Margarita [4]
3 years ago
12

A tourist is walking at a speed of 1.3 m/s along a 9.0-km path that follows an old canal. If the speed of light in a vacuum were

3.0 m/s, how long would the path be, according to the tourist?
Physics
2 answers:
Marat540 [252]3 years ago
8 0

Answer:

The length is 8111.1 m.

Explanation:

Given that,

Speed of tourist = 1.3 m/s

Distance = 9.0 km

Speed of light = 3.0 m/s

We need to calculate the length

Using formula of length

L= L_{0}\sqrt{1-(\dfrac{v}{c})^2}

Where, l = length

L_{0}=original length

v = speed of tourist

c = speed of light

Put the value into the formula

L=9000\times\sqrt{1-(\dfrac{1.3}{3.0})^2}

L=8111.1\ m

Hence, The length is 8111.1 m.

Alecsey [184]3 years ago
5 0

Answer:

The length of path according to the tourist is 8111.10 meters.

Explanation:

It is given that,

Speed of tourist, v = 1.3 m/s

Path length, L₀ = 9 km = 9000 m

If the speed of light in a vacuum were 3.0 m/s. We need to find the length of path according to the tourist. Let it is L. It is a case of length contraction.

So, L=L_0\sqrt{1-\dfrac{v^2}{c^2}}

L=9000\times \sqrt{1-\dfrac{(1.3)^2}{(3)^2}}

L = 8111.10 m

So, the length of path according to the tourist is 8111.10 meters. Hence, this is the required solution.

You might be interested in
A 1.0 kg rock moving at 8.4 m/s will have ______ of kinetic energy
BlackZzzverrR [31]
K.E=1/2mv^2 K.E=1/2multiply1multiply8^2=32joules
4 0
3 years ago
Swinging a tennis racket against a ball is an example of a third class lever. Please select the best answer from the choices pro
kari74 [83]
that statement is true

a Third class lever applied when the effort place between the load and the fulcrum.

For example, in a forearm serve
Fulcrum : The elbow
Effort : The effort that putted by the biceps muscle
Load : The arm

7 0
3 years ago
Read 2 more answers
In a level parking lot, a man with a mass of 100 kg gives a shove to a boy with a mass of 50 kg who is on roller skates. The boy
natita [175]

Answer:

100N

Explanation:

Newton's third law states that whenever an object exerts a force on a second object, it exerts a force of equal magnitude and direction but in the opposite direction on the first. It is often stated as follows: Each action always opposes an equal but opposite reaction.

The subject 1 of 100kg is making a force F, to move an object from 50Kg to 2m / s ^ 2. This Force the object of 50Kg will reflect it in the opposite direction by Newton's third law.

Once the parameter of the force that both are experiencing is clarified, Newton's second law is applied to their respective calculation.

F = ma = 50kg * 2m / s ^ 2 = 100N

That is the force the boy exert on the man during the shove.

4 0
2 years ago
A changing magnetic field can produce an electric current. True or False?
Mamont248 [21]

The answer is True :) have a good day

5 0
3 years ago
At what distance between two objects would you have the greatest gravitational force
Alla [95]

The gravitational force is inversely proportional to the
square of the distance between their centers.  So the
force is greatest when the distance is zero.

6 0
3 years ago
Other questions:
  • Jumps at 8 m/s at a 30 degree angle above the horizontal. how long was she in the air?
    12·1 answer
  • Did the bird population appear to benefit from the elimination of the rattlesnakes
    14·1 answer
  • What type of friction occurs when you are trying to move an object, but the object isnt moving?
    12·1 answer
  • Why are citizens obligated to respond to such documents?
    14·1 answer
  • A distance-time graph indicates that an object travels 2m in 2s and then travels another 80m during the next 40s. what is the av
    7·2 answers
  • Positively charged ions are surrounded by freely moving electrons in
    8·1 answer
  • A 2 kg mass is attached to a vertical spring and the spring stretches 15 cm from its original relaxed position.
    14·1 answer
  • A smooth wooden 40.0 N block is placed on a smooth wooden table a force of 14.0N is required to keep the block moving at a const
    10·1 answer
  • What is percentage....​
    5·2 answers
  • Burt and ned paddle their canoe 10 miles upstream and 5 miles downstream in 7 hours. if they can paddle 4 mph in calm water, how
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!