The shape of a convection current would be circular. Convection currents<span> are caused by the very hot material at the deepest part of the mantle rising, then cooling, sinking again and then heating, rising and repeating the cycle over and over. Hope this answers the question.</span>
Answer:
Explanation:
For the first ball, the moment of inertia and the kinetic energy is:
So, replacing, we get that:
At the same way, the moment of inertia and kinetic energy for second ball is:
So:
Then, is equal to , so:
Finally, solving for , we get:
Answer:
v_f = 1.14 m / s
Explanation:
This is an exercise of conservation of momentum, let's define a system formed by the skater and the snowball, therefore the forces during the launch are internal and the moment is conserved.
Initial instant. Before throwing the ball
p₀ = M v₀
Final moment. After throwing the snowball
p_f = (M-m) v_f + m v
the moment is preserved
p₀ = p_f
M v₀ = (M-m) v_f + m v
v_f =
let's calculate
v_f =
v_f = 64.936 / 56.89
v_f = 1.14 m / s
Answer:
600 N
Explanation:
From the question given above, the following data were:
Mass (m) = 60 Kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?
The weight of an object is related to its mass according to the following equation:
Weight = mass × Acceleration due to gravity
W = m × g
With the above formula, we can obtain obtained the weight of the boy as follow:
Mass (m) = 60 Kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?
W = m × g
W = 60 × 10
W = 600 N
Therefore, the weight of the boy on Earth is 600 N
In order to fabricate a uniform wire that has a resistance of R = 0.500Ω from 1.00 g of copper and all the copper is to be used, the Length, L of the copper required is 1.82m.
<h3>What would be the length of the copper wire?</h3>
The length of the wire is obtained as follows:
Length, L = √R*m/e*d
where;
R is resistance and is equal to 0.50 Ω
m is mass of the copper and is equal to 1.00 g or 10⁻³ kg
e, resistivity of Copper = 1.7 x 10⁻⁸ Ω⁻¹m
density of copper, d = 8.92 x 10³ kg/m³
L = √(10⁻³ * 0.50/1.7 x 10⁻⁸ * 8.92 x 10³)
Length, L= 1.82m
In conclusion, the length of the wire is obtained from the mass and density of the copper wire.
Learn more about length of wire at: https://brainly.in/question/49182286
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