Answer:
The focal length of the lens and the height of the image are -6.86 cm and -0.638 cm.
Explanation:
Given that,
Distance of the object u = -16.0 cm
Distance of the image v = -12.0 cm
Height of the object = 8.50 mm = 0.85 cm
(a). We need to calculate the focal length
Using lens's formula
Where, f = focal length
u = distance of the object
v = distance of the image
Put the value into the formula
The lens is diverging.
(b). Using formula of magnification
Put the value in to the formula
The image is inverted.
Hence, The focal length of the lens and the height of the image are -6.86 cm and -0.638 cm.
<h2>Answer </h2>
The kinetic energy is 8100 J.
<u>Explanation</u>
Mass is 50.0kg and velocity is 18 m/s, the kinetic energy is:
As we know the formula of kinetic energy which is K.E = ½ ( mv ^ 2 ),
mass = m = 50.0kg
velocity = v = 18 m / s,
by putting values in the formula,
K.E = ½ ( mv ^ 2 ),
K.E = ½ ( 50kg ) . ( 18 m / s ) ^ 2
K.E = ½ ( 50kg ) . ( 324 ),
=> K.E = 1/2 ( 16200 ),
=> K.E = 16200 / 2,
=> K.E = 8100J.
Hence, the kinetic energy ( K.E ) is 8100 joule ( J ).
Answer: K: 0K, C: -273.15 degrees, F: -459.67 degrees
Explanation:
What are the choices <span />
Answer:
t= 1.2 hours
Explanation:
Define first di distance between the points, so
The distance is