The focal point of a mirror is half of the radius of curvature. We can use the formula, 1/f = 1/v + 1/u where f is the focal length , v is the image distance and u is object distance The distance of the star is assumed to be incredibly far away and 1 divided by a really big number is approximately zero, thus; 1/f = 1/v = 1/75 = 1/v therefore; the image is formed 75 cm infront of the mirror
"Confounding variable" is the choice among the following choices given in the question that best describes two <span>or more explanatory variables that are not separated. The correct option among all the options that are given in the question is the second option or option "b". I hope the answer has come to your help.</span>
The law of conservation of momentum states that, if left alone, the total momentum of two interacting objects that make up a system remains the same.
Answer:
Explanation:
We are given that
Length of wire,L=20 mm=
Current,I=4 A
Number of turns per unit length,n=800
Current,i=2 A
Magnetic field of solenoid,B=
Where
Magnetic force,F=
Using the formula
<span>Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element.</span>