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
This question is very simple if you really think about it. B isn't correct because kittens can eat dry food. A wouldn't be correct. Also C wouldn't be correct because it doesn't matter if you watch your kitten eat or not so the answer would be D because some kittens prefer dry food and some prefer canned food better. So it's based on how her kitten behaves.
Answer:
The molar percent of ethanol in the air is 2.6%
Explanation:
Molar percent of ethanol in the air = partial pressure of ethanol/total pressure × 100 = 19.5 torr/758.6 torr × 100 = 2.6%
Answer:
Kinetic energyof the cart is 2450Joule
Mac and Keena are experimenting with pulses on a rope. Mac vibrates one end up and down while Keena holds the other end. This creates a pulse which they observe moving from end to end. How does the position of a point on the rope before the start of the pulse compare to its position after the pulse passes? Explain your reasoning.