Answer:
2.5A , 22500 JOULE
Explanation:
Resistance (R)= 6 ohm
Voltage (V) = 15 volt
a)
Current (I) = ?
From ohm's law,
V=IR
15 = 6*I
I = 2.5 A
b)
time(t) = 10min = 600 second
heat energy (Q) = ?
from Joule's law of heating,
Q = I²*R*t
Q = 2.5² *6*600
Q = 22500 Joule
hence, heat energy produced is 22500 joule.
Explanation:
the ratio between two circles vqjoizxcvu g çm
Answer:
1500 km
Explanation:
600x2.5=1500 (couldn't explain swear filter was for some reason saying I was swearing.) Hope it helps.
Answer:
III. It travels as a projectile in a gravitational field with negligible air resistance.
Explanation:
In this case, the body is under the effect of a force, therefore, it accelerates. This is due to the gravitational field, which is independent of its mass. Therefore, the body is under the effect of the acceleration of gravity, which is constant throughout the trip.
Answer:
Explanation:
Refractive Index: It is a measure to find how fast the light travels through a medium. It is ration of the speed of light in vacuum to speed of light in the medium. Speed of light is not constant and varies depending on the density of the medium.
In vacuum the speed of light is 300000 km/s and is denoted by c. When the light beam enters any medium the speed will decrease. Here it is given that the speed in plastic is v. Thus the refractive index(n) is given as:
It is a dimensionless no.