Answer:
The component of waves must have same frequency and phase.
Explanation:
when the component of waves vibrate at the same rate and attain maximum point at the same time, reinforcement of the waves amplitude occur to cause a constructive interference.However, when the two waves are out of phase where one is at minimum when the other is at maximum a destructive interference happens.
Well, i think there are more than one answers for this question. What influence whether or not bricks slide down the bed of the dump trucks will depends on :
- The mass of the Bricks
- The angle of the Bed
- The coefficient of static friction between the bricks and the bed
- the coefficient of kinetic friction between the bricks and the bed
hope this helps
Answer:
Viscosity - resistance to flow.
Magma has a higher viscosity if it has a lower temperature, is rich in silica, and contains a high abundance of dissolved gases.
Explanation:
Viscosity is referred to as a fluid's (liquid or gas) opposition or resistance to flow or change in shape. This resistance to motion or flow is caused by the internal friction between the molecules in the fluid. Viscosity denotes the thickness of the fluid. With increasing temperature, the viscosity decreases (thins) while with decreasing temperature, the viscosity increases (thickens).
Magma is a mixture of molten or liquid rock, crystals, dissolved gases, etc formed deep inside the earth and it causes volcanic eruptions when expelled onto the Earth's surface. The chemical composition of magma mostly contains silica, SiO2 (50 to 75% ) and iron, magnesium, sodium, potassium, and calcium form the rest. The magma contains dissolved gases and they give magmas their explosive behavior. The gas composition in magma consists of mostly water vapor and some carbon dioxide and traces of fluorine, sulfur and chlorine gases.
The viscosity of magma depends on the temperature, the composition of the magma and the amount of dissolved gases. As the SiO2 concentration in the magma increases, the viscosity also increases. The presence of a high amount of dissolved gases in magma also increases its viscosity. As the temperature of the magma increases, the viscosity decreases.
The rhyolitic type magma has a higher viscosity than the basaltic type magma and the andesitic type magma as it has a low temperature, rich in silica and contains a high abundance of dissolved gases.
I think the correct answer from the choices listed above is the second option. It is amps the unit that tells you about the amount of electrons traveling in the circuit. Amps is coulombs per second and coulombs represents a number of electrons.
When a 10-kg block is simultaneously pushed toward the east with 20N and toward the west with 15N, the combination of these forces on the block is 5N toward the East
Let's understand this problem in detail
Let which is in east direction
and which is acting in the west direction
Now,
But and are in opposite direction.
So let's rotate the force vector by 180 degrees which becomes
Now both and are in same directionof the forces are in a single line
Adding both of them, we get
=
= 20N - 15N = 5N, as both of the forces are in east direction hence, the net force is also acting in the east driection
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