Answer:
less than 27 m/s
Explanation:
The average speed would be total distance (10 + 10 = 20 miles = 32000 m) over total time
The time it takes you to drive the first 10 miles (16000 m) at 24m/s is
16000 / 24 = 666.67 s
The time it takes you to drive the 2nd 10 miles (16000 m) at 30 m/s is
16000 / 30 = 533.33 s
The average speed is
< 27 m/s
So your average speed is less than 27 m/s
Answer: 1960 N
Explanation:
The bear is sliding down at constant velocity: this means that its acceleration is zero, so the net force is also zero, according to Newton's second law:
There are two forces acting on the bear: its weight W, pulling downward, and the frictional force Ff, pulling upward. Therefore, the net force is given by the difference between the two forces:
From the previous equation, we find that the frictional force is equal to the weight of the bear:
Answer:
Number of electron wavelength will Double
Explanation:
let the radius = r and wavelength = λ
when R doubles and λ ( wavelength ) remains the same
The number of electron electron wavelengths will double as well
Using Bohr's angular momentum quantization to show this
attached below
