Answer:
Option B
Explanation:
The instantaneous velocity = Change in position/Time taken
The slope of the graph should give instantaneous velocity.
Slope of a graph = Change in value of Y -axis / Change in values of X -axis
Comparing both the equations
Change in value of Y -axis = Change in position
Change in values of X -axis = Time taken
So position values should be on the Y axis and Time values should be on the X axis.
Distance on the y-axis and time on the x-axis.
So, option B is the correct answer.
Complete Question
The accepted speed of sound at atmospheric pressure and 0 *C is 331.5 m/s. The speed of sound increases 0.607 m/s for every *C. Calculate the speed of sound at the temperature of your room(70F) and compare your measured value to the accepted value.
Answer:
Explanation:
From the question we are told that:
Speed of sound at Temperature
Rate of Speed increase
Generally the equation for Temperature in Celsius is mathematically given by
Therefore speed at Tc
Answer:
A linear, positive relationship
Explanation:
The graph is a line, so it is linear and the slope is positive, so it is positive...
So first we have to solve for the total momentum of the entire system. We can do this by solving momentum for the first train. The equation for momentum is p=mv, where "p" is momentum.
Total momentum is
When the first train comes to a complete stop, it is an elastic collision. We can use conservation of momentum to solve for the velocity of the second train.
If they stick completely, then it is an inelastic collision. Here we have to combine the mass of the two trains and solve for the velocity.
Finally, if the train is 20m/s then what is the velocity of the first train. Just like before, we can solve using conservation of momentum.