Answer:
a) Δx = 180.59 m
b) T = 6001 N
Explanation:
a)
According to Newton's second law, which says that acceleration is directly proportional to the net force, the equation is equal to:
ΣF = m*a = T-f
Clearing a, and solving:
a = (T-f)/m = (T-f)/2*m = (12000-5800)/(2*700) = 4.43 m/s^2
To evaluate the final speed the following equation will be used:
vf^2 = vi^2 + 2*a*Δx = 0 + 2*a*Δx = 2*a*Δx
Clearing Δx:
Δx = vf^2/2*a = (40 m/s)^2/(2* 4.43 m/s^2) = 180.59 m
b)
The tension is equal to:
T = m*a + f = (700 kg * 4.43 m/s^2) + 2900 N = 6001 N
Answer:
Explanation:
The five steps used for solving design problems are:
1. Define the problem
2. Gather pertinent information
3. Generate multiple solutions
4. Analyze and select a solution
5. Test and implement the solution
1. The first step of engineering design is to identify the problem.
2. The inputs to this activity include the research the problem, perhaps supplemented with evaluate possible solutions, both produced during product design.
3. In terms of the software life cycle, engineering design occurs during the protype creation and selection phase.
4. A good way to engage the problem during this activity is to test and evaluate the protype, which produces the main outputs of this activity.
Answer:
A. Wegener could not explain what made the continents move.
Explanation:
Answer:
You have to give us an answer choice : )
Answer:
C).
Explanation:
As we know if temperature of the gas remains constant then
now we will have
P = initial pressure due to gas
initial volume of the gas is
now we know that side of the box is increased by 4 times
so new volume is
now we have
now we have