Answer:
The magintude of the acceleration for both objects is 
Explanation:
Drawing a free body diagram on the two boxes we can analyze the system more easily.
we can take the acceleration going up as positive for reference purposes.
for mA let's suppose that is ascending so:

and for mB (descending):


because the two boxes has the same acceleration because they are attached together:

So the magintude of the acceleration for both objects is 
Answer:E = hc/? = 4.41 x 10-19 J
Energy absorbed by each atom :
E (atom) = 2.205 x 10-19 J
Now Bond Energy of each molecule (B) = 3.98 x J
So, for each atom 1.99 x 10-19 J
So now
KE of each atom = E(atom) - B (atom)
= 2.15 x 10-19 J
Answer:
42 grams
Explanation:
you multiply the value by 1000 to get your answer
Answer:
f = 0.283
Explanation:
With the given values x=5m and t=2s, the acceleration a of the block must be:
(1) 
The sum of all forces in the inclined plane must be:
(2) 
Solving equation2 for the acceleration a:
(3) 
Using equations 1 and 3 to solve for f:

Answer:
Linear motion is a one-dimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension.
Explanation: