Magnetic Field from a Wire/Magnetic Force

1.
a) 5 x 10^-5T
b) West
c) Net B-field is of magnitude 7.07 x 10^-5T directed at 45 degrees North of West. (It is not enough to say 7.07 x 10^-5T at 45 degrees!)

2. a = 0.0076 m/s^2

3. 48 A

4.
a) negative
b) Electric field is directed towards the top plate.
c) 2280 V
d) 9.5 x 10⁶ C/kg

5.
a) perpendicular to the plane of the page, directed OUT of the page.
b) 2 x 10^-7T
c) negative
d) 5 x 10^-7C
e) 0.2 N/C directed to the left

6.
a) perpendicular to the page, out of the page
b) 1.9 x 10^-15N
c) 19 cm
d) 1.2 x 10⁴N/C
e) The electric field is in the plane of the page, directed towards the top of the page.

7. This problem is very similar to #55 from yesterday. Important points: What is R in terms of given quantities? If the charge q crosses a potential difference V, what is the final speed if it starts from rest?

Additionally, some help on #67:
Many of you are finding the speed of the electrons, and are then able to figure out that you need to find the radius of curvature of the path. The image below suggests a way to find the deflection of the electrons from their intended path.