What are the two diffrent waves?
Answer:
Bad friction can be explained two ways:
Explanation:
1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.
2. Due to friction we have to exert more power in machines.
Answer:
400 meters
Calculate how much time the stone take to achieve the highest point of its trajectory:
0 - 10 = -10 • t
-10 = -10t
t = -10/-10
t = 1
So, it took 1 second to achieve the highest point of trajectory. When the stone achieves it, its have velocity 0 and begin to fall, and it takes also 1 second to return to the top of the platform, so it means that during 2 seconds of the motion. The stone achieves the same high as the platform with the velocity of 10 m/s
Now let's calculate the distance its traveled to achieve the ground:
X = 10•8 + (10•8²)/2
X = 80 + 320
X = 400 meters
Answer:
constant volicty of the pumper when they hit ground 7.03-/s
Answer:The answer is A,B and C
Explanation: it can be use to learn universe behavior,it is also use for the measurements of velocity of galaxy,and is can also be use to indicate,galaxy motion.
Doppler effect,measures the speed which star and galaxy are moving away from us or towards us. It shows the color of wavelength to be either red shift or blue shift.