1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xxTIMURxx [149]
3 years ago
7

If you had carried out the algebra using variables before plugging numbers into your expressions, you would have found that (vf)

α=−2qαΔVmα−−−−−−−√, where ΔV is measured in volts. To verify that this expression for (vf)α has the correct units of velocity, you need to perform some unit analysis. Begin by finding the equivalent of a volt in terms of basic SI units. What is a volt in terms of meters (m), seconds (s), kilograms (kg), and coulombs (C)? Express your answer using the symb
Mathematics
1 answer:
SashulF [63]3 years ago
7 0

Answer:

Step-by-step explanation:

Volt is energy per electric charge

1V=1J/C

and the energy units in terms of meters, seconds and kilograms are:

1J= 1kg\frac{m^{2}}{s^{2}}

So the unit of volt is

1V= kg \frac{m^{2}}{Cs^{2}}

So the velocity expression (it can not be read completly) but i guess that it could be as follows

vf_{a} = -2\sqrt{\frac{q_{a}\Delta V}{m_{a}}}

So the unit analysis would be

vf_{a} = \sqrt{\frac{C kg\frac{m^{2}}{Cs^{2}}}{kg}}}

note that the coulomb unit of numerator is cancelled from the denominator. The same occurs for kg unit.

vf_{a} = \sqrt{\frac{m^{2}}{s^{2}}}

Applying square root

vf_{a} = \frac{m}{s}

You might be interested in
Find the midpoint of A(5,3) and B(3,-5). Place your answer in (x,y) notation with no spaces.
kifflom [539]
Midpoint means 1/2 way 
separate the x's and the y's find the middle of the x length, middle of the y length 
 x: 5 - 3 = 2    1/2 of 2 = 1   from either end  (3 + 1) or (5-1) = 4 
y: 3-(-5) = 8     1/2 of 8 = 4   from either end  (3-4) or (-5 +4) = -1 

midpoint is therefore (4, -1) 
4 0
3 years ago
Factor the gcf -5k^2+20k-30
Degger [83]
Everything is divisible by five, so pull out five

5(-k^2+4k-6)
8 0
3 years ago
Help me..it has to be rounded to the tenths
klio [65]

Answer:

10.2 cm²

Step-by-step explanation:

The area (A) of a regular hexagon is

A = \frac{1}{2} × perimeter × apothem

Perimeter = 6 × 2 = 12 cm ( hexagon has 6 sides ), hence

A = 0.5 × 12 × 1.7 = 6 × 1.7 = 10.2 cm²

7 0
3 years ago
Read 2 more answers
Help which is the equation of a line that is parallel to the line represented
-Dominant- [34]
It would be answer A because answer A has the same slope as the equation in the question, none of the other answers have the same slope as 7/6. there is -7/6, but all that means is that the equation is negative. we need a positive equation.
4 0
3 years ago
The drama department needs to raise at least 575.00 for a trip to see a play they have already 163.00 if they sell candybars for
olga2289 [7]

Answer:

330

Step-by-step explanation:

575 - 163 = 412

412 / 1.25 = 329.6

Since we need to exceed the goal and we can only sell whole candy bars, we round 329.6 up to 330.

3 0
2 years ago
Other questions:
  • How many girls are in the marching band? And how can I turn 3/10 into a number
    13·1 answer
  • The legs of a right triangle have lengths of 4 and 5 units. Find the length of the hypotenuse.
    8·2 answers
  • I need help on with to find<br> 24 1/2-4 3/5
    11·2 answers
  • HELLO THERE. PLS HELP ME WITH GEOMETRY
    11·1 answer
  • Convert -450° from degrees to radians.
    13·1 answer
  • Ms naima is 5 years younger than twice nasser’s age. The sum of their ages is 40. How old is ms naima?
    14·1 answer
  • Evaluate the expression: (–2)2 + (–4)2 + (18 – 23). <br> A. –19 <br> B. 19 <br> C. –17 <br> D. 3
    10·1 answer
  • Solve the equation with quadratic formula
    11·1 answer
  • Hurry which one <br> A. 3/36in<br> B. 7/36in<br> C. 10/21in<br> D. 21/12in
    10·1 answer
  • 1. Is 2/12 = 5/28 a true proportion?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!