Answer:
a) 28.1 m/s
b) 27.2 m
Explanation:
a)
Consider the motion of the marble in downward direction taking down direction as positive
v₀ = initial velocity = 5 m/s
v = final velocity as it hits the ground = ?
a = acceleration = 9.8 m/s²
d = vertical height traveled = 39 m
Using the equation
v² = v₀² + 2 a d
v² = 5² + 2 (9.8) (39)
v = 28.1 m/s
b)
t = time of travel = 1.90 s
y = vertical distance traveled
Using the equation
y = v₀ t + (0.5) a t²
y = (5)(1.90) + (0.5) (9.8) (1.90)²
y = 27.2 m
Well, one AU is 149,597,870 km. So, we would basically have to divide 4.5 billion km by 149,597,870, right?
4,500,000,000/149,597,870=30.080642 AU.
So, the correct answer would be 30 AU. Hoped this helped!
The magnitude of the acceleration of the runner is given by:
where
is the final speed of the runner
is the initial speed of the runner
is the time taken
By substituting data into the equation, we find the magnitude of the acceleration:
Niobium wire with a 2.60 mm diameter has a maximum current capacity of 500 A while still remaining superconducting.
<h3>Describe the present.</h3>
Current is the rate at which charge passes from one point on a circuit to another. In a circuit, a significant current flows when several coulombs or charge pass over the cross section of a wire. When the charge carriers are firmly packed inside the wire, high currents can be generated at low speeds.
<h3>What do current and electron actually mean?</h3>
Electron movement is referred to as electron current. The positive terminal receives electrons that are released by the negative terminal. Traditional current, usually referred to as just current, exhibits behavior consistent with positive charge carriers being the source of current flow. Regular current is received at the positive end and then flows to a negative terminal.
To know more about current visit:
brainly.com/question/15141911
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Answer:
Explanation:
The force is equal to the negative of the derivative of the potential energy function:
In this problem, the potential energy function is
Therefore, the force function is:
So, adding the units of measurement,
