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.
The change in temperature is simply 50 / (9/5) = 27.777. We just throw out the 32 from the formula
Answer:
Explanation:
Let T be the tension in the string and mg is the weight of the block.
T = mg
By using Newton's second law
T - mg = ma
mg - mg = ma
a = 0
Thus, the acceleration is zero.
It will be potential because the roller coaster is going down so it’s not giving off energy to the roller coaster.
Answer:
34.292 m/s
Explanation:
When plane dives the gravitational acceleration becomes 10 times extra i-e
acceleration a = g= 10g's=10 ×9.8= 98 m/sec2
radius of dive circle = 12 m
v= speed= ?
Using
==> 
= a × r = 98 × 12 = 1176 
==> v= 
==> v= 34.292 m/s
