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makvit [3.9K]
3 years ago
6

If the average time it takes for the cart from point 1 to point 2 is 0.2 s, calculate the angle θ from the horizontal of the tra

ck. Assume the track is frictionless. Hint: use the definitions of acceleration and Newton’s second law.
Physics
1 answer:
inn [45]3 years ago
5 0

Answer:

hehe

Explanation:

I dont know because I am a noob ant study

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Suppose a point charge is located at the center of a spherical surface. The electric field at the surface of the sphere and the
emmasim [6.3K]

Answer:

<em>The flux through the sphere will remain the same, and the magnitude of the electric field will increase by four times.</em>

Explanation:

The electric flux is the number of electric field, passing through a given area. It is proportional to the electric field strength and the area through which this field passes.

If the radius of the sphere is halved, the area of the sphere will reduce by square of the reduction, which will be four times. The electric field lines will become closer together, or technically increase by a fourth of its initial value. The resultant effect is that the electric flux will remain the same.

If originally,

Φ = EA cos∅

where Φ is the electric flux through the sphere

E is the electric field on the sphere

A is the area of the sphere.

If the area of the sphere is reduced to half, then,

the area reduces to A/4,

and the electric field increases to be 4E on the sphere.

The flux now becomes

Φ = 4E x A/4 cos∅

which reduces to

Φ = EA cos∅

which is the initial electric flux on the sphere.

8 0
3 years ago
if it takes 3.5 hours for the hogwarts express moving at a speed of 120 mi/hr to make it from platform 9 and 3/4 to hogwarts how
Mila [183]
Use the formula distance = rate * time. substitute in the values you know, which gives you distance = 120mph * 3.5hours. multiply 120 and 3.5 to get distance = 420 miles.
4 0
3 years ago
If the Moon's orbit were perpendicular to the ecliptic, would eclipses be possible? What would be the most common phase of the M
tangare [24]

Answer:no

Explanation:

5 0
4 years ago
What is another name for the surface of the sun?
Volgvan

Answer: Chromosphere hope this helps :)

6 0
3 years ago
Select the order in which the flow of current is listed from greatest to the least.
Radda [10]

Answer:

Short circuit, closed circuit, open circuit

7 0
3 years ago
Read 2 more answers
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