Answer:
- mass: 35.2 kg
- momentum: 218 kg·m/s
- velocity: ≈ 6.19 m/s
Step-by-step explanation:
The mass and momentum are given in the problem statement. You are expected to know that ...
... momentum = mass × velocity
To find the velocity, you can fill in the given numbers in this relation, then solve.
... 218 kg·m/s = 35.2 kg · velocity
... (218 kg·m/s)/(35.2 kg) = velocity ≈ 6.193182 m/s . . . . . (divide by mass)
Rounded to appropriate precision, ...
... velocity = 6.19 m/s
_____
<em>Comment on word problems</em>
A word problem generally gives you the values of certain quantities, and may give you the relationship between them. It will ask you to make use of the given relationship(s), or one(s) you are expected to know, in order to find the values asked for. Laws of physics (as here), universal constants, geometric relationships, financial relationships, algebraic relationships, and other relationships may be involved. That is why you study these things, learn math and English vocabulary, and pay attention in the real world. (By the time you get to college, you are also expected to be familiar with number facts and the operation of your calculator.)
Answer:
A = 24
Step-by-step explanation:
We can see that the face of the given rectangular prism shows the width 4 and the height of 6. If we cut the figure at any point along the length 20, such that the cross section is parallel to the face, the cross section, which occurs at x length, will always have the same dimensions, that are 4 and 6.
So the area of the cross section which is parallel to the face of the given rectangular prism is given by:
A = 6 × 4
A = 24
Answer: Wherever the all graphs of the equations intersect, or cross each other, that is a solution to the system of equations.
Step-by-step explanation:
Answer:
hmm i am not sure sorry XD
Step-by-step explanation:
Answer: 
Step-by-step explanation:
- The equation of the line in the slope intercept form is: 
Where m is the slope and b is the y-intercept of the line
- Let's choose two points of the line: (8,-1) and (-4,-4).
- You must calculate the slope of the line as following:
- As you can see in the graph attached, the line intersects the y-axis at -3, then b=-3.
- Substituting values into the equation of the line, you obtain:
