Answer:
Exercise 1;
The centripetal acceleration is approximately 94.52 m/s²
Explanation:
1) The given parameters are;
The diameter of the circle = 8 cm = 0.08 m
The radius of the circle = Diameter/2 = 0.08/2 = 0.04 m
The speed of motion = 7 km/h = 1.944444 m/s
The centripetal acceleration = v²/r = 1.944444²/0.04 ≈ 94.52 m/s²
The centripetal acceleration ≈ 94.52 m/s²
Answer:
8
Explanation:
All noble gasses have 8 electrons in their outer shell
Answer:
Miller index:
This is the set of number which is used to define the position of face any crystal.We know that crystal plane is the plane where large number of molecule are present inside this plane.
Lets take r is the vector which is passing through the origin of lattice
r = a i + b j + c k
So the intercept on the plane x is a unit ,on the y plane is b unit and on the z plane is c unit.
Now when we take the reciprocal of these intercept we get 1/a, 1/b , and 1/c.These reciprocal of intercept is know as Miller index.
Answer:
Total time= 2.56 s
Explanation:
Given that
So distance = 386242560 m
Velocity of light
We know that
Distance = velocity x time
Now by putting then values
t=1.28 s
So the total time = 2 x 1.28
total time= 2.56 s
Answer:
Efficiency = 5%
Explanation:
Given that,
Supplies energy to the bulb = 100 J
Transferred energy by the bulb = 5 J
We need to find the efficiency of the bulb. It can be given by "
So, the efficiency of the bulb is 5%.
