The average speed is the distance per time ratio. velocity is the rate at which the position changes
Answer:
Ycm = 2.34m
Explanation:
See attachment below please.
Answer: Hello, While increased daylight can have some effect on the higher temperatures in the summer, most of temperature rise results from the directness of the Sun, not the increased daylight. ... During the winter, daytime lasts shorter than 12 hours; during the summer, it lasts longer than 12 hours.
Explanation: Hope this helps :)
Answer:
Explanation:
A 26-kg crate, initially at rest on a horizontal surface, requires a 72-N horizontal force to set it in motion.
Maximum Frictional force on stationary object F = μs R where μs is coefficient of static friction and R is reaction of ground which is equal to weight for object placed on horizontal surface .
F = μs x mg
Given F = 72 , m = 26
72 = 26 x 9.8 x μs
μs = .28
Kinetic friction : ---
Frictional force on moving object F = μk R where μk is coefficient of kinetic friction and R is reaction of ground which is equal to weight for object placed on horizontal surface .
F = μk x mg
Given F = 72 , m = 26
54 = 26 x 9.8 x μk
μk = .21
Answer:
The separation distance between the two charges must be 82704.2925 m
Explanation:
Given:
Two negative charges that are both q = -3.8 C
Force of 19 N
Question: How far apart are the two charges, s = ?
First, you need to get the electrostatic force of this two negative charges:
Here
k = electric constant of the medium = 9x10⁹N m²/C²
Substituting values: