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
MissTica
3 years ago
9

Sound is faster than light that is why we hear thunder before we see lightning

Physics
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:

false

Explanation:

sound travels slower than light. that is why we see lightning before we hear the thunder

You might be interested in
A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.15 T over a region of radius 7.4 m. The charge on
klio [65]

Explanation:

It is given that,

Magnetic field, B = 0.15 T

Charge on a proton, q=1.60218\times 10^{-19}\ C

Mass of a proton, m=1.67262 \times 10^{-27}\ kg

The cyclotron frequency is given by :

f=\dfrac{qB}{2\pi m}

f=\dfrac{1.60218\times 10^{-19}\ C\times 0.15\ T}{2\pi \times 1.67262 \times 10^{-27}\ kg}

f = 2286785.40 Hz

or

\omega=14368296.44\ rad/s

\omega=1.43\times 10^7 rad/s

Hence, this is the required solution.

8 0
3 years ago
What is the definition of Newton and could you leave an example of it too?
vichka [17]
What is the definition of newton
7 0
3 years ago
Fluorescence occurs when an object absorbs ____________________ and immediately releases the energy as visible light.
soldier1979 [14.2K]

Answer:

The answer should be light or other electromagnetic radiation

Explanation:

Such as x-rays or other things like that.

<em>-Hope This Helps!</em>

<em>-Justin:)</em>

5 0
2 years ago
A sudden discharge of static electricity during a thunderstorm is called
Tpy6a [65]
Hello
It is called lightning. Lightning in a storm occurs when there are two regions (it can be cloud-cloud or cloud-ground), one with a strong excess of positive charges and the other one with a strong excess of negative charges. The two types of charge attract each other, and then a sudden flow of charges from one region to the other occurs, which is called lightning.
3 0
3 years ago
In a perfectly elastic collision between two perfectly rigid objects
ipn [44]

Both the total momentum and the total kinetic energy are conserved

Explanation:

- In a collision between two or more objects, if there are no external forces acting on the system (isolated system), the total momentum of the objects is always conserved. This is called principle of conservation of momentum, and can be written as follows:

mu+MU = mv+MV

where

m, M are the masses of the two objects

u, U are the initial velocities of the two objects

v, V are the final velocities of the two objects

- The total kinetic energy, however, is not always conserved. In fact, we have two types of collision:

1) In a perfectly elastic collision, the total kinetic energy of the objects is conserved. This means that we can write the following equation:

\frac{1}{2}mu^2 + \frac{1}{2}MU^2 = \frac{1}{2}mv^2+\frac{1}{2}MV^2

2) In an inelastic collision, the total kinetic energy of the object is NOT conserved. This means that part of the total kinetic energy is "lost", converted into other forms of energy (mainly thermal energy, due to the presence of frictional forces within the system). The most extreme case is called perfectly inelastic collision, in which the two objects stick together after the collision, and there is the maximum loss of kinetic energy.

Learn more about collisions:

brainly.com/question/13966693#

brainly.com/question/6439920

LearnwithBrainly

7 0
3 years ago
Other questions:
  • In this lab, you will use a magnet and a simple circuit to examine the concepts of electricity and magnetism. Think about how th
    5·2 answers
  • A girl throws a tennis ball upward with an initial velocity of 4 m/s. What is the maximum displacement of the ball?
    11·1 answer
  • In the absence of air, why does the horizontal component of velocity for a projectile remain constant while the vertical compone
    15·1 answer
  • 2. How many grams of water can be heated from 20.0°C to 75°C using<br><br><br> 12500.0 Joules?
    10·1 answer
  • Anthony is deciding between different savings accounts at his bank. He has four options, based on how frequently interest compou
    8·1 answer
  • A sled is pushed with 30 Newtons and sliding friction is 10 Newtons find the net force on the sled​
    10·1 answer
  • A simple harmonic oscillator consists of a block of mass 45 g attached to a spring of spring constant 240 N/m, oscillating on a
    11·2 answers
  • A bungee cord can stretch, but it is never compressed. When thedistance between the two ends of the cord is less than its unstre
    10·1 answer
  • Define Behavioral Therapy: (In your own words). Write at least 1 mental illness you think the therapy can help with.
    6·1 answer
  • The van accelerates at 2.2m/s^2. The force causing the acceleration is 5.5 kN. Calculate the mass of the van
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!