Explanation:
answers to 1 and 2 above/below respectively but can't do 3 because I don't know what graph you're talking about
Answer:
N
Explanation:
We are given that three charged particle are placed at each corner of equilateral triangle.




Side of equilateral triangle =3.3 cm=
We know that each angle of equilateral angle=
Net force=F =
Where k=
If we bisect the angle at
then we have 30 degrees from there to either charge.
Direction of vertical force due to charge
and 
Therefore, force will be added
Vertical force=
Vertical net force=
Vertical force =
Vertical force=
(towards 
Horizontal component are opposite in direction then will b subtracted
Horizontal force=
Horizontal force=
N(towards 
Net electric force acting on particle 3 due to particle =
Net force=
Net force=
N
Answer:
Centre of mass of any body is a point where all mass of a body is supposed to be concentrated
it lies in geometrical centre....
Answer:
dt/dx = -0.373702
dt/dy = -1.121107
Explanation:
Given data
T(x, y) = 54/(7 + x² + y²)
to find out
rate of change of temperature with respect to distance
solution
we know function
T(x, y) = 54 /( 7 + x² + y²)
so derivative it x and y direction i.e
dt/dx = -54× 2x / (7 +x² + y²)² .........................1
dt/dy = -54× 2y / (7 + x² + y²)² .........................2
now put the value point (1,3) as x = 1 and y = 3 in equation 1 and 2
dt/dx = -54× 2(1) / (7 +(1)² + (3)²)²
dt/dx = -0.373702
and
dt/dy = -54× 2(3) / (7 + (1)² + (3)²)²
dt/dy = -1.121107
Answer:
0 m/s
Explanation:
Average velocity of an object is given by the net displacement divided by time taken. Displacement is equal to the shortest path covered by the object.
In this problem, a player runs the length of the 30-meter court and back. The player does this three times in 60 seconds.
As the player runs the court and returns to the original point. It would mean that the shortest path covered is 0.
Average velocity = displacement/time
v=0/30
v = 0 m/s
Hence, the correct option is (1).