Answer : The best pressure is 110 GPa of the lower mantle.
Explanation : We know that the pressure in the lower mantle starts at 24 GPa and reach a 136 GPa at the boundary.
So, the best pressure is 110 GPa because 220 GPa, a 305 GPa and 360 GPa are the higher value of the maximum value 136 GPa of the lower mantle.
A because of the resistors are four in this options first option is multiplied by 4
Substance Y has more atoms per gram than substance W.
Explanation:
The best conclusion supported by the data suggests that substance Y has more atoms per gram compared to substance W:
Chart;
2.542 W
0.900 X
3.209 Y
1.657 Z
From the chart above see that Y has more specific heat W. This implies that Y will require more energy to raise the temperature of the substance compared to W.
Specific heat is the amount of heat required to raise the temperature of 1g of a substance by 1K.
The more the amount of matter per gram present, the more the specific heat it will have.
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Answer:
Speed of the boat, v = 4.31 m/s
Explanation:
Given that,
Height of the bridge, h = 32 m
The model boat is 11 m from the point of impact when the key was released, d = 11 m
Firstly, we will find the time needed for the boat to get in this position using second equation of motion as :
Here, u = 0 and a = g
t = 2.55 seconds
Let v is the speed of the boat. It can be calculated as :
v = 4.31 m/s
So, the speed of the boat is 4.31 m/s. Hence, this is the required solution.