Answer:
cannot
Explanation:
because convection occurs to difference in densities between particles and there is a movement of particles during convection ( gases and liquids ) , in solids , atoms are very tightly packed and cannot move
Answer:
f = 8 %
Explanation:
given,
density of body of fish = 1080 kg/m³
density of air = 1.2 Kg/m³
density of water = 1000 kg/m²
to protect the fish from sinking volume should increased by the factor f
density of fish + density of water x increase factor = volume changes in water
1080 +f x 1.2 =(1 + f ) x 1000
1080 + f x 1.2 = 1000 + 1000 f
998.8 f = 80
f = 0.0800
f = 8 %
the volume increase factor of fish will be equal to f = 8 %
Answer:
<h3>The answer is option A</h3>
Explanation:
To find the mass of an object given it's acceleration and the force acting on it we use the formula
From the question
force = 500 N
acceleration = 5.0 m/s²
We have
We have the final answer as
<h3>100 kg</h3>
Hope this helps you
Answer:
The current flowing through the lightbulb was too high. Increasing resistance would decrease the current
Explanation:
Resistance is defined as the opposition to the flow of current across a resistor in an electric circuit. This means that resistors in a circuit opposes the motion of a current. Increase in the value if a resistor will decrease the amount of current that will pass through the resistor.
The higher the value of the resistance, the lower the current and vice versa.
Based on the conclusion above, we could infer that the resistance of the bulb was tested because 'the current flowing through the lightbulb was too high. Increasing resistance would decrease the current.'
Answer:
d= 7.32 mm
Explanation:
Given that
E= 110 GPa
σ = 240 MPa
P= 6640 N
L= 370 mm
ΔL = 0.53
Area A= πr²
We know that elongation due to load given as
A= 42.14 mm²
πr² = 42.14 mm²
r=3.66 mm
diameter ,d= 2r
d= 7.32 mm