The mirror formula for the curved mirrors is 1/f = 1/v + 1/u.
Mirror Formula:
The mathematical expression determining the distance of image and distance of the object from the mirror, without drawing a ray diagram, is known as the mirror formula.
The mirrors whose reflecting surfaces are curved in nature are known as curved mirrors. The curved mirrors are either bulged outwards (convex mirrors) or bulged inwards (concave mirrors).
The mirror formula for the curved mirrors are given as,
here,
f is the focal length of the mirrors.
v is the image distance.
u is the object distance.
Thus, we can conclude that the mirror formula for the curved mirrors is 1/f = 1/v + 1/u.
Learn more about the mirror formula here:
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Answer:
Explanation:
Given
mas of block
speed of block
spring constant
As the mass collides with the spring its kinetic energy is converted to the Elastic Potential energy of the spring
Answer:
77.08 C
Explanation:
= mass of the water = 500 g = 0.5 kg
= specific heat of water = 4186 J/(kg °C)
= Rate of change of temperature = 3 °C /min = (3/60 ) °C /s = 0.05 °C /s
= thermal conductivity of glass = 0.84
= Area of the element = 0.090 m²
= thickness of the element = 1.5 mm = 0.0015 m
= Temperature inside = 75 °C
= Temperature outside = ?
Using conservation of energy
Heat gained by water = Heat transferred through glass
Power =Force * Velocity
Velocity = Distance/Time = 2/0.5 = 4 m/s
Therefore,
P = 1000*4 = 4000 W = 4 kW
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Use kelvin not celsius
C + 273 = K
This will fix my problem of the equation not making sense.