Answer: 1. Third law Every applied force is opposed by an equal force. TRUE
2. Second law A force must be applied to change an object's velocity
FALSE
3. First law Acceleration is affected by mass
FALSE
Explanation: The arrangements of the Newton's law is wrong for Second and third options. Instead the Second law and first laws were misplaced. This is the correct order
Newton's First law: A force must be applied to change an object's velocity.
Newton's second law: Acceleration is affected by mass
Newton's third Law: Every applied force is opposed by an equal force.
This is the correct order for the Newton's law of motion.
Answer:
The wavelength is λ, the frequency is ν and the energy is 100E.
Explanation:
The energy of a single photon is given by:
<u>Where:</u>
E: is the energy of a single photon,
h: is the Planck constant,
c: is the speed of light,
λ: is the photon's wavelength and
ν: is the photon's frequency
The wavelength and the frequency of the 100 photons are the same as the single-photon since the pulse of light contains 100 times the single-photon, therefore, for the pulse of light we have that the wavelength is λ, the frequency is ν, and the energy is:
Hence, the energy of the pulse of light is 100 times the E of the single photon.
I hope it helps you!
.Answer:
The value of the work done is .
Explanation:
When a charged particle having charge is moving through an electric field , the net force () on the charge is
and the work done () by the particle is
Given, .
Substitute the value of electric field in equation (1) and then substitute the result in equation (2).
Hello there.
<span>Natalie accelerates her skateboard along a straight path from 4 m/s to 0 m/s in 25.0 s. Find the acceleration.
</span><span>6.25 m/s2
</span>
First we have to convert 6 grams to kg (0.006 kg) and then using the thermal physics formula which is Q=m*c*change in temperature, we get 478,8 joule
(Btw c is the specific heat capacity of water which is 4200 j/kg °C