The change in temperature from -9 degrees to -2 degrees is a rise of 7 degrees.
The change in temperature is calculated by subtracting the initial temperature from the final temperature. In this case, Alvin woke up to a temperature of -9 degrees. By end of the morning, the temperature had risen to -2 degrees. So, to find out the change in temperature, subtract the initial temperature from the final temperature, which is -2 - (-9), this equals to 7 degrees.
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Answer:
idk
Explanation:
Answer: RING-DING-DING-DING-DING-DING-DING
Explanation:
LOL
B. your vector
C. your position
D. your displacement
The correct answer is actually C. your position
JUST TOOK THE QUIZ AND GOT IT CORRECT
The magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.
The electric field strength of the electron is calculated as follows;
E = V/d
E = 200/(0.01)
E = 20,000 V/m
The magnetic field strength is related to electric field in the following formula;
qvB = qE
vB = E
B = E/v
B = (20,000)/(6 x 10⁶)
B = 0.0033 T
Thus, the magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.
Learn more about magnetic field here: brainly.com/question/7802337
Answer:
3.3 mT
Explanation:
First of all, we need to find the strength of the electric field between the two parallel plates.
We have:
(potential difference between the two plates)
(distance between the plates)
So, the electric field is given by
Now we want the electron to pass between the plates without being deflected; this means that the electric force and the magnetic force on the electron must be equal:
where
q is the electron charge
E is the electric field strength
v is the electron's speed
B is the magnetic field strength
In this case, we know the speed of the electron: , so we can solve the formula to find B, the magnetic field strength:
Answer:
B= 5626.77 m
C= 6220. 5 m
Explanation:
Because the sum of the vectors must be equal to zero, then the result force in x and the result force in y must be zero.
We propose 2 equations x-y to solve the problem:
Rx :resulting from forces at x
Ry: resulting from forces at y
Rx= Ax+Bx+Cx=0
Ry= Ay+By+Cy=0
Ax =1550 *cos25.6°= 1397.84
Ay =1550 *sin25.6° = 669.73
Bx= B*sin41° = 0.656B
By= -B*cos41° = -0.7547 B
Cx= -C*cos35.1°= -0.8181 C
Cy= C* sin35.1° = 0.575 C
Rx= 1397.84+0.656B-0.8181 C=0
Ry= 669.73-0.7547 B+ 0.575 C=0
System of 2 equations with 2 incognites:
+0.656B-0.8181 C= - 1397.84
-0.7547 B+ 0.575 C= -669.73
Resolving the system:
B= 5626.77 m
C= 6220. 5 m
Since the vectors A, B, and C add to zero, their x and y components should add up to zero as well. This information helps create a system of linear equations to solve for the magnitudes of vectors B and C.
The subject matter of this vector question involves physics, specifically vector addition and vector resolution. The key point you must understand here is that these vectors add up to a total of zero. This gives us an equation to solve for the magnitudes of the other vectors, B and C.
First, break each vector into its x (east-west) and y (north-south) components and set up the system of equations. For example, Ax = 1550 cos(25.6°), Ay = 1550 sin(25.6°). Notice that the direction for vector B is given as east of south, which means B's x component is negative and its y component is positive.
When these are added together they should equal zero (since A + B + C = 0), so you will have two equations to solve for the magnitudes of B and C. This is a system of linear equations you'll need to solve, either manually or with calculator.
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