Answer:
Explanation:
Given
Initially A moves towards Y axis with a velocity of 2 m/s and B moves towards X axis with velocity of 3.7 m/s
mass of both the block is same let say m
Conserving momentum in x direction
thus A moves with a velocity of 3.7 m/s towards x axis in order to conserve the momentum in x direction
Thus ball B moves towards Y direction with
And ball A moves towards X direction with
(c)Total momentum
Kinetic Energy
B.) Venus and Uranus
All of the planets move in an eastward direction except Venus and Urunus
<h3><u>Answer;</u></h3>
Perpendicular
<h3><u>Explanation;</u></h3>
- The crest of a water wave moves <u>perpendicular</u> to the direction the wave energy moves.
- A transverse wave is a wave in which particles move up and down or side-to-side at right angles or perpendicular to the direction the wave travels.
- Examples of these waves are: vibrations in strings, ripples on water surface and electromagnetic waves. In a transverse wave, the particles of the medium oscillate in a direction perpendicular to the direction of propagation.
Answer:
fr = 269.3 N
Explanation:
Let's use Newton's second law, for this it is good to see the attached diagram,
X axis
fr -F2 = 0
fr = F2
Y Axis
N-W = 0
We must include the rotation balance, place the rotation point at the bottom of the ladder and take the positive counterclockwise turns.
Σ τ = 0
F2 x -W y / 2 = 0
We look for x and y with trigonometry
sin 70 = y / L
cos 70 = x / L
y = L sin70
x = L cos 70
We substitute and calculate F2
F2 L cos 70 = W L sin 70 / 2
F2 = mg/2 tan 70
F2 = 20 9.8/2 tan 70
F2 = 269.3 N
From the first equation (x axis)
fr = F2
fr = 269.3 N
Answer:
Explanation:
firstly we have to find the frequency and then the angular frequency.
The frequency will be:
The angular frequency is:
ω
ω
ω
Now we can apply simple pendulum relationship
ω
make g the subject of the formula