K so I'm not completely sure about this...
but I believe the answer would be C. It will float upward
because the buoyancy, in the image, is stronger than the Gravitational pull.
Let me know if that is right or wrong plz
Hope it's right and helps tho!
Answer:
0.6 Ω
Explanation:
As shown in the diagram below,
Since the resistance and the ammeter are connected in series,
(i) The same amount of current flows through them.
(ii) The sum of their individual individual voltage is equal to the total voltage of the circuit.
Applying ohm's law,
V = IR................ Equation 1
Where V = Voltage across the ammeter, I = current flowing through the ammeter, R = resistance of the ammeter.
make R the subject of the equation
R = V/I............... Equation 2
Given: V = 1.2-0.9 = 0.3 V, I = 0.5 A.
Substitute into equation 2
R = 0.3/0.5
R = 0.6 Ω
Answer:
the acceleration of the girl is 8 m/s² in opposite direction.
Explanation:
Given;
mass of the girl, m₁ = 30kg
mass of the boy, m₂ = 40 kg
acceleration of the boy, a₂ = 6 m/s²
let acceleration of the girl = a₁
Apply Newton's third law of motion;
the force exerted by the girl is equal in magnitude to the force exerted by the boy but in opposite direction.
F₁ = -F₂
m₁a₁ = -m₂a₂
30a₁ = -(40 x 6)
30a₁ = -240
a₁ = -240 / 30
a₁ = -8 m/s² (the negative sign shows that the acceleration is in opposite direction)
Thus, the acceleration of the girl is 8 m/s² in opposite direction.
A ph 1 Jxdjjdxkxkxkslxlxkxjbx
Answer:
Explanation:
Given that
L = 3 m
M = 2.4 kg
m=0.7 kg
r= L/2 = 1.5 m
The moment of inertia of rod about it center
The moment of inertia of point mass about center of rod
I'= mr² + mr²
So total moment of inertia
By putting the values