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ruslelena [56]
3 years ago
6

Question 23 of 32

Physics
1 answer:
marshall27 [118]3 years ago
7 0
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A proton moves at constant velocity in the +y direction, through a region in which there is an electric field and a magnetic fie
Ivenika [448]

Answer:

a) F_{e} - F_{m} = 0,  b) v = 666.67 m / s

Explanation:

For the proton to move y-axis  the sum of the electric and magnetic force must be zero, therefore

        F_{e} - F_{m}= 0

a) ∑ F = 0

        F_{e} - F_{m} = 0

b) we write the forces

         q E = q v B

         v = E / B

Let's calculate

      v = 300 / 0.45

      v = 666.67 m / s

4 0
3 years ago
With the aid of a string, a gyroscope is accelerated from rest to 16 rad/s in 0.40 s. what is its angular acceleration in rad/s2
vovikov84 [41]

Angular acceleration = (change in angular speed) / (time for the change)

Change in angular speed = (ending speed) minus (starting speed)

Change in angular speed = (16 rad/s) - (zero) = 16 rad/s .

Angular acceleration = (16 rad/s) / (0.4 s)

(Average) angular acceleration = 40 rad/s²

4 0
2 years ago
Please guys i need help in this
JulijaS [17]

Answer:

10 seconds

Explanation:

We have the equation V = at  (speed = acceleration x time)

We want to find the time, so can rearrange to T = V/a (time = speed / acceleration).

From the question, we know V is 5 and a is 0.5.

Now we can substitute that into our equation: 5/0.5 = 10.

So the time is 10 seconds.

Hope this helps! Let me know if you have any questions :)

8 0
2 years ago
How to do this problem
marusya05 [52]
The answer I'm pretty sure is 3
4 0
3 years ago
Read 2 more answers
A metre rule is used to measure a length. Which reading is shown to the nearest millimetre? A 0.7m B 0.76m C 0.761m D 0.7614m
Cloud [144]

Answer:

none

Explanation:

~both of them show to the nearest metre.

~millimeter has (mm) unit eg 0.7mm

4 0
3 years ago
Read 2 more answers
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