From part a, you know that surface temperature is a stellar property that we infer indirectly. What must we measure directly so
1 answer:
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Answer:
0.99m
Explanation:
Firs you calculate the relative velocity between the boat and the wave. The velocity of the boat is 5m/s and the velocity of the wave is given by:
the relative velocity is:
This velocity is used to know which is the distance traveled by the boat after 20 seconds:
Next, you use the general for of a wave:
you take the amplitude as 2.0/2 = 1.0m.
by replacing the values of the parameters in f(x,t) you obtain the vertical displacement of the boat:
Answer:
Explanation:
The equations of kinematics will be used to solve this question:
At its maximum height, the projectile has zero velocity in the y-direction. But its velocity in the x-direction is unaffected.
First, let's apply the above equations to the x-direction.
There is no acceleration in the x-direction. So, its velocity in the x-direction is constant during the motion.
Therefore, the velocity vector of the projectile is
The speed of the projectile is the same.
The acceleration vector is constant during the motion and equal to the gravitational acceleration, which is -9.8 downwards.