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Art [367]
3 years ago
13

A proton traveling due west in a region that contains only a magnetic field experiences a vertically upward force (away from the

surface of the earth). What is the direction of the magnetic field?
a. east
b. north
c. down
d. west
e. south
Physics
2 answers:
Zanzabum3 years ago
6 0

Answer:

D

Explanation:

Nonamiya [84]3 years ago
5 0

Answer:d

Explanation:

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A body of mass 25kg, moving at 3 ms per second on a rough horizontal floor brought to rest after sliding through a distance of 2
erastova [34]
You have to solve this by using the equations of motion:
u=3
v=0
s=2.5
a=?
v^2=u^2+2as
0=9+5s
Giving a=-1.8m/s^2

Then using the equation:
F=ma
F is the frictional force as there is no other force acting and its negative as its in the opposite direction to the direction of motion.

-F=25(-1.8)
F=45N

Then use the formula:
F=uR
Where u is the coefficient of friction, R is the normal force and F is the frictional force.

45=u(25g)
45=u(25*10)

Therefore, the coefficient of friction is 0.18

Hope that helps




5 0
4 years ago
What is the answer? Explain best and I will mark brainliest!
iVinArrow [24]
I would say B because it is near the ocean which can cause a tsunami but also because of the wind coming from the ocean (it might cause hurricanes and lots of storms) I’m not sure though but that’s what I think makes sense. Good Luck!
5 0
3 years ago
Read 2 more answers
What does this circuit do? T is the clock All flip flops are D-Flip-Flop What is the function of the circuit if Dser is ‘1’ alwa
Harlamova29_29 [7]

Answer:

That is true

Explanation:

6 0
3 years ago
Who is the founder of operant conditioning?
Gemiola [76]

Operant conditioning, sometimes called <em>instrumental learning</em>, was first extensively studied by Edward L. Thorndike, who observed the behavior of cats trying to escape from home-made puzzle boxes.

Hope this helps!

7 0
3 years ago
A 2kg object is dropped from a height 10m.Calculate the speed of the object after it has fallen 5m, assuming there is no resista
Ugo [173]

Answer:

10m/s

Explanation:

d=v_ot+\dfrac{1}{2}at^2

Since there is no initial velocity as the object is dropped, you can write the following equation:

5=\dfrac{1}{2}(10)t^2 \\\\1=t^2 \\\\t=1

Now that you know how long the fall took, you can use another physics equation to find the velocity at that point.

v_f=v_o+at

Since there once again is no initial velocity, you can rewrite this as:

v_f=at=(10)(1)=10m/s

Hope this helps!

5 0
4 years ago
Read 2 more answers
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