<span>Since the force is applied at an angle from the
horizontal, we will use the horizontal component of this force in calculating
for the displacements.
From derivation, the Fx is:</span>
Fx = F cos φ
Where:
Fx = is the horizontal component of the force
F = total force
φ =
angle in radian = 37 * pi / 180 = 0.645 rad
Calculating: Fx = 30.0 N * cos(0.645)
Fx = 23.97 N = 24 N
Calculating for Work: W = Fx * d
A. W = 24 N * 15 m = 360 N
B. W = 24 N * 16 m = 384 N
C. W = 24 N * 12 m = 288 N
D. W = 24 N * 14 m = 336 N
Answer:
To identify the problem
Explanation:
The first step in the problem-solving process is to identify the problem. It is not as simple as it sounds as different people may have different ideas of what the "problem" is. Clearly stating the problem and getting everyone involved to agree is an important first step.
Answer:
P = I V power produced by source at voltage V thru resistance R
I = V / R current thru resistance R
P = V^2 / R
Power produced will decrease as the output resistance R increases
Check: if R increases to ∞ the power produced will go to zero
Answer:
50kPa and if the area decreases, the pressure increases
Explanation:
P=F/A; P=pressure, F=force, A=area
85000N/1.7 m^2 = 50000 N/m^2; Pa = Pascal = N/m^2
=50 kPa
<h2>
Answer: 15 s</h2>
Explanation:
This is a situation related to vertical motion with constant acceleration, where the equation that will be usefull is:
(1)
Where:
is the final height of the ball (when it reaches the ground)
is the initial height of the ball (is also zero because is thrown from ground)
is the initial velocity of the ball
is the time the ball is in air (on Earth)
is the acceleration due to gravity on Earth
is the acceleration due to gravity on the Moon
Having this clear, let's solve (1) for the Earth:
(2)
(3)
(4)
(5)
(6) This is the initial velocity
Using this same velocity and equation (4) for the Moon:
(7)
Finally finding 
:
