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
almond37 [142]
3 years ago
9

You are on a train going north and you see a car going north too, but it appears to be heading backwards, why?

Physics
1 answer:
laila [671]3 years ago
8 0

Because the train is moving much faster than the car.

You might be interested in
what is the kinetic energy of an object that has mass of 30 kilograms and move with a velocity of 20 m/s
kotegsom [21]
Kinetic Energy = 1/2 * m * v² 1/2 * 30 * 20² 1/2 * 30 * 400 12000/2 6000 J.
7 0
2 years ago
what do you think is the purpose of a periscope? Are there any other uses for periscopes besides for submarines?
spin [16.1K]

Military personnel also use periscopes in some gun turrets and in armoured vehicles. More complex periscopes using prisms or advanced fibre optics instead of mirrors and providing magnification operate on submarines and in various fields of science

3 0
3 years ago
Which scenario is in excample of a scientific way to think
vlabodo [156]
Can you explain this a bit more I don’t quite understand
4 0
2 years ago
Monochromatic coherent light shines through a pair of slits. If the wavelength of the light is decreased, which of the following
Law Incorporation [45]

Answer:

he correct answers are a, b

Explanation:

In the two-slit interference phenomenon, the expression for interference is

          d sin θ= m λ                       constructive interference

          d sin θ = (m + ½) λ             destructive interference

in general this phenomenon occurs for small angles, for which we can write

           tanθ = y / L

           tan te = sin tea / cos tea = sin tea

           sin θ = y / La

un

derestimate the first two equations.

Let's do the calculation for constructive interference

         d y / L = m λ

the distance between maximum clos is and

         y = (me / d) λ

this is the position of each maximum, the distance between two consecutive maximums

         y₂-y₁ = (L   2/d) λ - (L 1 / d) λ₁          y₂ -y₁ = L / d λ

examining this equation if the wavelength decreases the value of y also decreases

the same calculation for destructive interference

         d y / L = (m + ½) κ

         y = [(m + ½) L / d] λ

again when it decreases the decrease the distance

the correct answers are a, b

7 0
2 years ago
How much physical activity should an adult have each week?
LuckyWell [14K]

Answer:d

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • The magnetic fields of Earth and several other planets are produced by _____. magnetic substances conductive materials in motion
    7·2 answers
  • Find the magnitude of the force that our planet's magnetic field exerts on this wire if it is oriented so that the current in it
    5·1 answer
  • A taiga biome is DIFFERENT from a tundra biome because it has
    6·2 answers
  • The kinetic energy of an object is equal to the?
    15·1 answer
  • A lightbulb has a resistance of 285 ω when operating with a potential difference of 110 v across it. what is the current in the
    5·1 answer
  • A system absorbed 44 joules of heat from its surroundings. After doing work, the increase in the internal energy of the system i
    12·2 answers
  • Choose two forces and compare and contrast these forces. These must be different forces than used in the prior question. Provide
    14·1 answer
  • What is the potential energy of a 3 kg- ball that is on the ground?
    7·1 answer
  • In nuclear fission the nucleus is divided into two or more fragments, releasing Question 8 options: protons and energy. neutrons
    8·1 answer
  • A rack of seven spherical bolwing balls (each 7.00 kg, radius of 9.50 cm) is positioned along a line located a distance =0.850 m
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!