Answer:
The coefficient of friction of the surface μ = 0.235
Explanation:
Values of the given variables:
Weight of block = 8.5 N
Pushing force F = 2 N
velocity = constant
Solution:
Newton's Second Law of motion states that acceleration of an object depends on the mass of the object and the force applied
F = m a
Since v =constant, a = 0. Thus
Net force Fnet = 0.
Now F_net is the sum of the pushing force and the frictional force along the horizontal, which opposes the motion:
Fnet = Fpushing - Ffrictional_force
Given that Fnet = 0, Fpushing = Ffrictional_force. and Ffrictional_force = 2 N
Equation of friction is given by
Ffrictional_force = μ*W
2 = μ*8.5
μ = 2/8.5 = 0.235
Hope this helps. Sorry of it is long
Answer: military
African Americans received the best treatment in the military during war. Making up about 3/4 of the military, African American soldiers proved their efficiency and ability to serve the country, thus receiving more respect from society than if they were to work in more "common" jobs, for example in a factory. However, while they received the best treatment in the military during the war, African Americans still faced segregation within the units of the military, an important fact to note.
Polar covalent, it is what happens when there is unequal bond between two atoms, where one has a slightly negative charge and one has a slightly positive charge.
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Answer: 1000x
Explanation:
I hope this helped!
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Answer:
When you heat ice, its temperature rises, but as soon as the ice starts to melt, the temperature stays constant until all the ice has melted. This happens because all the heat energy goes into breaking the bonds of the ice's crystal lattice structure.
Explanation:
