Answer:
It is directly proportional to the charge
Explanation:
The magnitude of the electrical force on a charge is given by:
where
q is the magnitude of the charge
E is the magnitude of the electric field acting on the charge
From the formula, we see that F (the force) is directly proportional to q /the magnitude of the charge), so the correct answer is
It is directly proportional to the charge
We can also add something about the direction of the force:
- when the charge is positive, the force has positive sign, which means that its direction is the same as the direction of the electric field (repulsive force)
- when the charge is negative, the force has negative sign, which means that its direction is opposite to the direction of the electric field (attractive force)
Answer:
15.7 m
Explanation:
The range (horizontal distance) of the projectile is determined only by its horizontal motion.
The horizontal motion is a motion with constant speed, which is equal to the initial horizontal velocity of the object:
where
v = 12.0 m/s is the initial velocity
is the angle between the direction of v and the horizontal
Substituting,
We know that the projectile hits the ground in a time of
t = 2.08 s
so the horizontal distance covered is
Answer:
temperature on left side is 1.48 times the temperature on right
Explanation:
GIVEN DATA:
T1 = 525 K
T2 = 275 K
We know that
n and v remain same at both side. so we have
..............1
let final pressure is P and temp
..................2
similarly
.............3
divide 2 equation by 3rd equation
thus, temperature on left side is 1.48 times the temperature on right
Answer:
13800 N
Explanation:
Impulse is the product of average force and time expressed as I=Ft where I is the impulse which results into change in momentum, F is the average force and t is the time of impact. Making F the subject of formula then
Substituting I with 13.8 N.s and time, t witg 0.001 s then the average force is calculated as
Therefore, the average force is equivalent to 13800 N