Perform the following calculations and express your answer using the correct number of significant digits. (a) A man has two bags weighing 13.5 lb and one bag with a weight of 10.2 lb. What is the total weight of the bags? (b) The force F on an object is equal to its mass m multiplied by its acceleration a . If a wagon with mass 55 kg accelerates at a rate of 0.0 255 m/s 2 , what is the force on the wagon? (The unit of force is called the newton and it is expressed with the symbol N.)
Perform the following calculations and express your answer using the correct number of significant digits. (a) A man has two bags weighing 13.5 lb and one bag with a weight of 10.2 lb. What is the total weight of the bags? (b) The force F on an object is equal to its mass m multiplied by its acceleration a . If a wagon with mass 55 kg accelerates at a rate of 0.0 255 m/s 2 , what is the force on the wagon? (The unit of force is called the newton and it is expressed with the symbol N.)
Perform the following calculations and express your answer using the correct number of significant digits. (a) A man has two bags weighing 13.5 lb and one bag with a weight of 10.2 lb. What is the total weight of the bags? (b) The force
F
on an object is equal to its mass
m
multiplied by its acceleration
a
. If a wagon with mass 55 kg accelerates at a rate of
0.0
255 m/s
2
, what is the force on the wagon? (The unit of force is called the newton and it is expressed with the symbol N.)
How can i solve this if n1 (refractive index of gas) and n2 (refractive index of plastic) is not known. And the brewsters angle isn't known
2. Consider the situation described in problem 1 where light emerges horizontally from ground level.
Take k = 0.0020 m' and no = 1.0001 and find at which horizontal distance, x, the ray reaches a height
of y = 1.5 m.
2-3. Consider the situation of the reflection of a pulse at the interface of two string described in the previous problem. In addition to the net disturbances being equal at the junction, the slope of the net
disturbances must also be equal at the junction at all times. Given that p1 = 4.0 g/m, H2 = 9.0 g/m
and Aj = 0.50 cm find 2. A, (Answer: -0.10 cm) and 3. Ay. (Answer: 0.40 cm)please I need to show all work step by step problems 2 and 3
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