Answer: To help eliminate subjectivity
Explanation:
Edgenuity 2020
Answer:
a) 113N
b) 0.37
Explanation:
a) Using the Newton's second law:
\sum Fx =ma
Since the crate doesn't move (static), acceleration will be zero. The equation will become:
\sum Fx = 0
\sumFx = Fm - Ff = 0.
Fm is the applied force
Ff is the frictional force
Since Fm - Ff = 0
Fm = Ff
This means that the applied force is equal to the force of friction if the crate is static.
Since applied force is 113N, hence the magnitude of the static friction force will also be 113N
b) Using the formula
Ff = nR
n is the coefficient of friction
R is the reaction = mg
R = 31.2 × 9.8
R = 305.76N
From the formula
n = Ff/R
n = 113/305.76
n = 0.37
Hence the minimum possible value of the coefficient of static friction between the crate and the floor is 0.37
Clouds can form just above ground or at just about any level within the atmosphere. There are clouds far higher up than the top of mount Everest. Mt. Everest is 29,029 ft, whereas the highest clouds in that region reach 60,000 feet. The determining factor is a cloud on the ground is called fog. But they can form relatively low. So its not shocking to see the peak of mountains higher than some clouds. Fresh snow in the pictures taken during a summit bid may have been the outcome of weather happenings before the summit bid, as summit bids are almost never undertaken in poor weather. Also in a "storm snow", little snow really falls directly on the summit because of harsh conditions.
Yes it is ! Because u need to learn about weathering
Answer:
E = 73.5 J
Explanation:
Given that,
Mass of a marble, m = 5 kg
It is placed at the edge of a 1.5 m table
We need of find the gravitational potential energy of the marble. It is given by the formula as follows :
E = mgh
E = 5 kg × 9.8 m/s² × 1.5 m
E = 73.5 J
So, the potential energy of the marble is 73.5 J.