77+78+79+80=314 Is Your Answer
Answer:
€2.24
Step-by-step explanation:
Let, the potatoes be x and apples be y
A/c to question,
4x = 3.80
x = 0.95
And,
3x + 2y = 7.33
3*0.95 + 2y = 7.33
2y = 7.33 - 2.85
y = 4.48/2
y = €2.24
Hence, the cost of 1 kg apple (y) = €2.24
For the answer to the question above,
<span>a) Use F = k * q1 * q2 / d²
where k = 8.99e9 N·m²/C²
and q1 = -1.602e-19 C (electron)
and q2 = 1.602e-19 C (proton)
and d = distance between point charges = 0.53e-10 m
The negative result indicates "attraction".
b) Here, just use F = ma
where F was found above, and
m = mass of electron = 9.11e-31kg, if memory serves
a = radial acceleration
c) Now use a = v² / r
where a was found above
and r was given
d) period T = 2π / ω = 2πr / v
where v was found above
and r was given </span>
Answer:
The answer for this question is B and C
Right off the bat we know that the y-intercept is going to be 5 because of the second co-ordinate.
Now for the slope, because the y co-ordinate doesn't change, it has no slope so the equation is simply: y=5
Hope this helps :)
