Explanation:
I think it is the third image as marked in the diagram I kept above because as we know first class levers have the fulcrum between the force and the load
Neon is an element, and on top of that a noble gas, which makes it resistant to forming compounds with other elements. The answer is A.
The correct answer is a I hope that helped enjoy the rest of your weekend
PART A)
horizontal distance that will be moved = 14 m
Height of the fence = 5.0 m
height from which it is thrown = 1.60 m
angle of projection = 54 degree
So here we can say that stone will travel vertically up by distance
now we will have displacement in horizontal direction
now we know that
now we will have
also for y direction
now from the two equations we will have
now from above equations
So the minimum speed will be 13.2 m/s
Part B)
Total time of the motion after which it will land on the ground will be "t"
so its vertical displacement will be
now we will have
Now the time after which it will reach the fence will be t1 = 1.8 s
so total time after which it will fall on other side of fence
now the displacement on the other side is given as
Answer:
The internal resistance of the cell is, r = 2.27 Ω
Explanation:
Given data,
The voltage of the battery, v = 1.49 V
The external resistor of resistance, R = 3.2 Ω
The current through the circuit after connecting resistor, I = 0.27 A
The theoretical value of current through the circuit,
Iₓ = v / R
= 1.49 / 3.2
= 0.4585 A
But, the actual reading of the current through the circuit is,
I = 0.27 A
Therefore, the total resistance Rₓ = v / I
= 1.49 / 0.27
= 5.52 Ω
Therefore, the internal resistance of the cell,
r = Rₓ - R
= 5.52 Ω - 3.2 Ω
∴ r = 2.27 Ω