Answer:
Can you help me with this pls
Is there a certain context to this question so that I can answer it better?
Answer:
Explanation:
a ) Kinetic energy of ball = 1/2 m v² , m is mass of the ball and v is its velocity
= 1/2 x .058 x 80²
= 185.6 J .
b ) The velocity of ball is very high so we shall find out the relativistic kinetic energy , the formula is given below
kinetic energy = mc² (
)
= mc² x
- mc²
= .058 x 9 x 10¹⁶ x
- .058 x 9 x 10¹⁶
= .058 x 9 x 10¹⁶ x 1 / .8 - .058 x 9 x 10¹⁶
.058 x 9 x 10¹⁶ ( 1.25 - 1 )
= .058 x 9 x 10¹⁶ x .25
= .1305 x 10¹⁶
= 13.05 x 10¹⁴ J .
answer
1)the direction is from the body of a high temperature to a body at a low temperature
2)at the melting point and boiling point because the heat given is used to break down the forces holding the particles together so that they can change their state
3)In a gas because the particles of gases are held by weak forces thus have large intermolecular spaces between the particles while the solids are in a fixed position
4)heat is transferred to another body if they experience different temperatures
Answer:
Induced EMF,
Explanation:
Given that,
Radius of the circular loop, r = 5 cm = 0.05 m
Time, t = 0.0548 s
Initial magnetic field, 
Final magnetic field, 
The expression for the induced emf is given by :

= magnetic flux





So, the induced emf in the loop is 0.0143 volts. Hence, this is the required solution.