Answer:
Options A and D
Explanation:
In this question the student needs to collect these measurements in order to approximate the work done
A. The mass of the student
D. The final vertical height above the initial vertical position.
Workdone = mgh
m = mass
g = gravity = 9.8m/s²
h = vertical height between the initial and the final positions.
The vertical height has to be known as gravity only acts straight down.
Answer:
Same direction to produce maximum magnitude and opposite direction to produce minimum magnitude
Explanation:
Let a be the angle between vectors A and B. Generally when we add A to B, we can split A into 2 sub vectors, 1 parallel to B and the other perpendicular to B.
Also let A and B be the magnitude of vector A and B, respectively.
We have the parallel component after addition be
Acos(a) + B
And the perpendicular component after addition be
Asin(a)
The magnitude of the resulting vector would be




As A and B are fixed, the equation above is maximum when cos(a) = 1, meaning a = 0 degree and vector A and B are in the same direction, and minimum with cos(a) = -1, meaning a = 180 degree and vector A and B are in opposite direction.
Hey there!
P= 3kg=3
W=m x g x d =3kg x 9 8 m/s² x 3m = 88J
Hope this helped you and solve your problem
TobeySnaps.
The answer is 2 and 3 because light bulbs dont produce uv rays and uv rays are very dangerous to people.
If wave exhibits reinforcement, the component waves must be in phase with each other. Components waves combine to form a resultant with the same wavelength but the amplitude which is greater than the amplitude of either of the individual component waves, and this happens in constructive interference.
In phase the features of the two waves they completely match at zero degrees.