Answer:
V = a * t = 9.8 m/s^2 * 2.3 s = 22.5 m/s velocity after 2.3 s
S = 1/2 g t^2 since initial speed is zero
S = 1/2 * 9.8 m/s^2 * 5.29 s^2 = 25.9 m
Answer:
The dog has more momentum than the pony.
Explanation:
To solve this problem, we must remember the formula for calculating momentum, which is given below:
momentum = p = m*v
where m represents the mass of the object and v represents the velocity of the object
Using this knowledge, let's calculate the momentum for the dog and the pony.
Dog: p = m*v = (2kg)*(41 m/s) = 82 kg*m/s
Pony: p = m*v = (75kg)*(1 m/s) = 75 kg*m/s
Since 82 > 75, we can conclude that the dog has more momentum.
Hope this helps!
Answer:
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
Explanation:
1Hz = One Cycle and One Cycle = 360degrees
When you want to find the difference caused by a time separation of two waves, you can find how much of a wave cycle will pass during the time delay.
At 0.25Hz, it takes 4 seconds to make 1 Cycle. With some algebra you find that 1 cycle every 4 seconds = <em>a quarter cycle every 1 second</em>.
So now that you know a one second delay causes a quarter of a cycle to pass, you can convert that into degrees by multiplying 0.25 and 360. 0.25x360=90
Lo and behold, a time difference of 1 second, creates a <u>phase seperation of 90 degrees</u>.
