She will decrease the amount of work
Without the ramp, Ingrid would have to, in no particular order,
• push the box along the ground, which amounts of (20 N) (5 m) = 100 J of work
• lift the box up some height <em>h</em> with a force at least equal in magnitude to the weight of the box <em>mg</em>, so that the work done in the lifting is <em>mgh</em> (i.e. the energy required to lift the box with constant speed to a height <em>h</em>)
and the total work done in this way would be (100 + <em>mgh</em>) J.
With the ramp, Ingrid would instead push the box a length equal to the hypotenuse of the right triangle formed by the two displacements above. Recall that the hypotenuse of any right triangle is always shorter than the sum of its legs' lengths. (This eliminates the third and fourth options.) So if the length of the ramp, or total displacement of the box along the ramp, is <em>s</em>, then the work done by pushing up the ramp is (10 N) <em>s</em> = 10<em>s</em> J
Answer with explanation:
- An integer is a whole number that can be positive, negative, or zero. For example ...-3,-2,-1,0,1,2,3....
- Here, positive value indicates gain or above something where as negative value indicates loss or below something.
If the change in the value of his favorite card is $-7, that simply indicates that he is having a loss of $-7 that can be understand as the value of his this years card must be smaller than the last year card.
Hence, the best describes the meaning of integer:
"he is having a loss of $-7"
Part a:
this is really just intuition. you can go either way as long as you back up what you say.
either you think hunter would be faster because he starts out with a lot more money, or you think amado would be faster because he earns a lot more.
part b:
let x be the number of hours hunter works, and y the number that amado works.
they both need to earn 600 dollars.
hunter's money is modelled by 150 + 7.5x
to get 600 dollars
150 + 7.5x = 600
7.5x = 450
x = 60
amado's money is modelled by 12y
to get 600 dollars
12y = 600
y = 50
hunter would need to work 60 hours to make enough money, but amado would only need to work 50, so hunter will take longer.
then say whether this agrees with what you guessed in part a
Answer:
It's 155
Step-by-step explanation:
Since the whole angle is 180
And u got 25
So 180-25=155
