Answer:
0.0239364 N
0.0057879 N
Explanation:
= Density of the gas
g = Acceleration due to gravity = 9.81 m/s²
V = Volume
Mass of rubber = 1.5 g
Buoyant force is given by
The buoyant force is 0.0239364 N
Net vertical force is given by
The net vertical force is 0.0057879 N
Answer: 98 N
Explanation:
The weight of an object is given by
where m is the mass of the object, and g is the gravitational acceleration.
In this problem, m=10 kg is the mass of the lemur, while the gravitational acceleration is . Therefore, the weight of the lemur is
Answer:
Phosphorus
Explanation:
Phosphorus needs 3 electrons to complete its outter most shell of electrons
Answer:
The required amplitud is 0.11cm
Explanation:
To solve this problem it is necessary to apply the concepts related to simple harmonic motion, where displacement is given by
Where,
A = Amplitude
f = Frequency
t = time
If we derivate the expression we can obtain the Acceleration, there
x would be A for the minimum amplite of vibration, then
Replacing with out values,
Therefore the required amplitud is 0.1146cm
The time taken for the train to stop is 8.9 seconds.
The distance traveled by the train during acceleration is 9,984 m.
The distance traveled by the train during deceleration is 17.8 m.
<h3>
Time taken for the train to stop</h3>
Use the following kinematic equation to determine the time taken for the train to stop.
v = u + at
where;
- v is the final velocity of the train = 0
- u is the initial velocity = 4 m/s
- a is the deceleration = -0.45 m/s²
- t is time of motion
0 = 4 - 0.45t
0.45t = 4
t = 4/0.45
t = 8.89 seconds = 8.9 seconds
<h3>Distance traveled by the train during acceleration</h3>
s = ut + ¹/₂at²
where;
- t is time of motion = 8 min = 480 seconds
s = (4)(480) + ¹/₂(0.07)(480)²
s = 9,984 m
<h3>Distance traveled by the train during deceleration</h3>
s = ut + ¹/₂at²
s = (4 x 8.9) + ¹/₂(-0.45)(8.9)²
s = (4 x 8.9) - ¹/₂(0.45)(8.9)²
s = 17.8 m
Learn more about deceleration here: brainly.com/question/75351
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