V= the square root of (2*gravity*height)
v= the square root of (2*9.8*10)
v= the square root of (196)
v= 14 m/s
Answer:
Reference point.
Explanation:
Motion can be defined as a change in location (position) with respect to a reference point.
This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.
In this scenario, three runners compete in a 400m race on an oval-shaped running track. At a certain time, one runner is 15m away from the finish line. Thus, the term which best describes the finish line is a reference point.
A reference point can be defined as a fixed point that typically marks the position from which a body starts its motion or change its location.
Acceleration is a change in speed, so if the car has a constant speed then it's acceleration is 0m/s^2.
Answer:
hange in value is because the observer and the source has a relatively high speed
Explanation:
The emission of a molecular with is always the same, the reason why they change in value is because the observer and the source has a relatively high speed.
As the energy of the beam varies inversely with the wavelength, this shift is due to the fact that the earth and the cloud are moving away from each other.
If we want to find the velocity eta value we must use the relativistic Doppler effect
f ’= fs √ [(1- v / c) / (1 + v / c)]
What is the weight of the box? 980 N
What is the value of the normal force? 630 N
<span>What is the acceleration of the box?</span> 7.5 m/s^2