Answer:
D
Explanation:
The standard international (SI) unit for spring constant is N/m, so N/km is the same thing but bigger.
1.<span>from low potential to high potential
2. </span><span>A circuit is an unbroken loop of conductive material through which electrons flow continuously.
</span>3. There are two, a series circuit and a parallel circuit.
This is a series because they are all connected
This is a projectile motion problem, so, we use the formula for trajectory:
y =xtanα + gx^2/2v^2(cosα)^2
where
y is the vertical distance (y = 50 m)
x is the horizontal distance (x=90 m)
α is the angle of trajectory; since it levels of HORIZONTALLY, α = 0°
v is the initial velocity
g is the acceleration due to gravity which is 9.81 m/s^2
Substituting to the formula,
50 =90tan(0°) + (9.81)(90)^2/2v^2(cos0°)^2
v = 28.2 m/s
For this problem, we are asked to calculate for the distance traveled. We set up the equations as follows:
Distance = 61 km/hr * (time + 20.8/60 s) Distance = 98.5 km/hr * time
We equate the two equations, then we can solve for the time spent on the trip. Hope this answers the question. Have a nice day.
The answer is A because potential energy is stored up energy which means that it’s not moving
