Tornadoes are known for their force and strength. When it tornadoe touches ground, it rips up everything in its path, and can rarely suck up people. Some are very short, and others are very, very long.
Answer: Period = 0.2 seconds; frequency = 5Hz
Explanation:
Number of oscillations = 50
Time required = 10 seconds
Period (T) = ?
Frequency of the oscillations (F) = ?
A) Recall that frequency is the number of oscillations that the mass spring system completes in one second.
i.e Frequency = (Number of oscillations / time taken)
F = 50/10 = 5Hz
B) Period, T is inversely proportional to frequency. i.e Period = 1/Frequency
T = 1/5Hz
T = 0.2 seconds
Thus, the the period and frequency of the oscillations are 0.2 seconds and 5Hz respectively.
Answer:
Aboard a flying airplane
On a roof
Above a refrigerator
On top of a table
On the ground
Explanation:
The higher an object is the more gravity wants to pull it down
Answer:
7.85 m/s
Explanation:
We are given that
Mass of object=m=0.900 kg
U=0 when x=0
Potential energy=
Substitute the values
Using the formula
Substitute x=0
Using law of conservation energy
Substitute the values
Depends upon how soon you want to stop. You know the mass of the car, you know the initial velocity of 8.9 m/s. You know the final velocity which is zero. You can now calculate the deceleration of the car if you know how soon you want to stop.
Let's say you want to stop in one second.
a = (vf - vi) / t = - 8.9 m/s^2 (negative sign indicates deceleration).
F = ma = 800 x 8.9 = 7120 Newtons (kg*m/s^2)
