Answer:
* if the spring force is greater than the maximum of the static friction force,
Fe = m (a + μ_k g)
* If the elastic force is less than or equal to the static friction force, the result is with static friction coefficient
Fe =μ_s m g
Explanation:
For this exercise we must apply Newton's second law to the system
X axis
Fe -fr = m a
Fe = m a + fr
Y axis
N-W = 0
N = W = mg
the roe force is given by
fr = μ N
fr = μ mg
we substitute
Fe = m a + μ m g
Ee = m (a + μ g)
Let's analyze the solution. We have several possibilities
* if the spring force is greater than the maximum of the static friction force, the system acquires an acceleration and the result is with the kinetic friction coefficient
Fe = m (a + μ_k g)
* If the elastic force is less than or equal to the static friction force, the result is with static friction coefficient
Fe =μ_s m g
B. Think about planets, The moon is attracted to the earth and the earth is attracted to the sun. We are attracted to the earth, that's we cant fall off the earth, gravity is pushing on us.
Answer:
It takes 0.25 hours or 15 minutes
Explanation:
You have to divide the distance by the velocity to find the time:
10/40 = 0.25 hours = 15 minutes
C. white light
Explanation:
All the visible color light waves are seen together and makes up a white light.
Visible light is made up of different colors and when they join together they are seen as the white light around us.
- During rainbow formation, we see the different colors of light that makes up a white light.
- when white light passes through a glass prism, the velocity and wavelength changes and we can see the different components of light.
learn more:
electromagnetic waves brainly.com/question/12450147
#learnwithBrainly
Answer:
The value of de Broglie wavelength is 14.0 pm
Explanation:
Given;
mass of proton, m = 1.673 x 10⁻²⁷ kg
velocity of the proton, v = 2.83 x 10⁴ m/s
De Broglie wavelength is given as;
where;
h is planck's constant = 6.626 x 10⁻³⁴ kgm²/s
m is mass of the proton
v is the velocity of the proton
Therefore, the value of de Broglie wavelength is 14.0 pm
