Answer: a. Mediums
Explanation: Just did this on USA test prep
Hi so the answer is (C) outlining because it uses to make the the figure more different and darker.
Answer:
Microphone
Explanation:
Microphone is the device which converts sound into electrical energy by electromagnetic induction
Answer:During the collision
Explanation:
When a baseball collides with bat its velocity changes from Positive To negative i.e. ball changes its direction to exactly opposite of initial. During collision at some point in time velocity of ball reaches zero and then finally changes its direction associated with an increase in velocity of the ball. velocity after depends upon the amount of force acting on the ball and the time of contact of force.
Answer: ![v \approx 18.37 \frac{m}{s}](https://tex.z-dn.net/?f=v%20%5Capprox%2018.37%20%5Cfrac%7Bm%7D%7Bs%7D)
Explanation:
Let assume that system is conservative. From application of the Principle of Energy Conservation, it is noticed that initial linear kinetic energy must be equal to the gravitational energy at the top of the circle. That is to say:
![K_{1} = U_{2}\\](https://tex.z-dn.net/?f=K_%7B1%7D%20%3D%20U_%7B2%7D%5C%5C)
Where
.
![v = \sqrt{4 \cdot (9.81 \frac{m}{s^2})\cdot(8.6 m)} \\v \approx 18.37 \frac{m}{s}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B4%20%5Ccdot%20%289.81%20%5Cfrac%7Bm%7D%7Bs%5E2%7D%29%5Ccdot%288.6%20m%29%7D%20%5C%5Cv%20%5Capprox%2018.37%20%5Cfrac%7Bm%7D%7Bs%7D)