A.) wet 21° Celcius, dry 27° Celcius
All Offsprings will be round because it comes out as dominant evrytime and it has 0 ressesives. Hope this helped ;)
The apparent velocity is B) 48 m/s north
Explanation:
Here we have a problem of relativity of velocities.
In fact, the train is travelling north at a speed of
where this velocity is measured with respect to the ground.
At the same time, a passenger on the train is walking towards the rear (so, south) at a velocity of
where this velocity is measured with respect to the train, which is in motion in the opposite direction.
Therefore, the apparent velocity of the passenger with respect to an observer standing on the ground is:
And the direction is north, since this number is positive.
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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
To solve this problem we will apply the linear motion kinematic equations, specifically the concept of acceleration as a function of speed and time, as well as Newton's second law.
PART A) Acceleration can be described as changing the speed in a period of time therefore,
Force is the proportional change between mass and acceleration therefore
PART B) We will apply the same concept given but now we will change the time to 21s therefore:
Now the force