Yeah what do you want me to answer for this question?
Answer:
1.63 s
Explanation:
The skier lands on the sloped section when the direction of its velocity is exactly identical to that of the slope, so at 
below the horizontal.
This occurs when the magnitude of the vertical velocity is equal to the horizontal velocity (in fact, 
, and since 
and so 
.
We already know the horizontal velocity of the skier:
And this is constant during the entire motion.
The vertical velocity instead is given by
where
is the initial vertical velocity (zero since the skier flies off horizontally)
g = 9.8 m/s^2
t is the time
Here we have chosen the downward direction as positive direction.
Substituting 
, we find the time:
The answer is d.8,120 foot-pounds
The terminal speed of the marble is 0.588 m/s.
Given:
We know that,
F = mg ......(1)
where,
F = force
m = mass
g = acceleration due to gravity
Also,
v = F/k ......(2)
where,
v = terminal speed
k = proportionality constant
Substituting the value of F from equation (1) in equation (2)
v = mg/k .......(3)
Given,
m = 30 g = 0.030 kg
k = 0.500 kg/s
g = 9.8 m/s²
To find,
v =?
Put the values in equation (3)
v = mg/k
v = 0.03(9.8)/ 0.500
= 0.294/0.500
= 0.588 m/s
Learn more about the calculation of force, refer to:
brainly.com/question/15562875
#SPJ4
The energy travels in a disturbance, in an ocean that disturbance is a wave, so the wave makes energy and moves it through the water
