Answer:
Magnitude of the resultant vector is R = 6.81 m
Explanation:
Given :
Vector A having magnitude of 2.5 m
Vector A having direction 37 degree south of east.
Vector B having magnitude of 3.5 m
Vector B having direction 20 degree north of east.
Therefore, the angle between the two vectors is, θ = 37+20 = 57 degree
So, the resultant of the two vectors are given by
R = 6.81 m
There are 3 types of electromagnetic radiation given off by the sun. The first being visible light. Visible light radiation is 99% of the sun's rays. The remaining 1% is made up of UV radiation and Infrared. UV radiation is what is responsible for sunburns.
The Bohr's proposal for the angular momentum of an electron in Bohr's model of the hydrogen atom is:
L=(n*h)/(2π), where n is the number of the energy level and h is the Planck's constant. This equation shows us the quantization of angular momentum of the electron. So the correct answer is the second one: Planck's constant.
An earthquake's epicenter is the place on earth's surface directly above the focus.
reason : the epicenter lie above the focus where the disturbance starts.
when an earthquake occurs, energy radiates in all directions from its source, which is called the focus
reason : because the disturbance starts from the focus below the epicenter.
earthquakes are usually associated with faults
reason : earthquake arise from the disturbance or faults of the plates of the earth inside.
Answer: Acceleration is the rate of change of velocity of an object
Explanation:
Rate means, that quantity over time
And mathematically,
Acceleration=velocity/time
Which means that acceleration is the rate of change of velocity of an object.