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MaRussiya [10]
3 years ago
7

If a suspended object A is attracted to a charged object B, can we conclude that A is charged?

Physics
1 answer:
spayn [35]3 years ago
8 0
Not necessarily, object A could also be neutral, and becoming a dipole due to object B's charge. A charged object can induce a dipole in a neutral object, and that object would then become attracted without being charged.
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What are the four layers of oceanic crust from top to bottom?
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Oceanic, Crust, Geolific, techtonic
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3 years ago
A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centr
GREYUIT [131]
The centripetal acceleration of the car is 48,800 mi/h2
4 0
4 years ago
What is the mass of an object that has a 250 N force moving at an acceleration of 10 m/s2 ?
zzz [600]
Answer: 25 kg

Identify the given information.
f = 250 N
a = 10 m/s^2 
 
Choose which formula you should use. In this case, you are finding the mass.
The formula for force is f = ma, so, using this, it is easy to find the mass.

f = ma         Divide by a for both sides
m = f/a        Formula for mass!

The formula for mass is m = f/a, where f is force and a is acceleration.

Substitute.
m = (250 N)/(10 m/s^2)
m = 25 kg

5 0
4 years ago
An oil layer that is 5.0 cm thick is spread smoothly and evenly over the surface of water on a windless day. What is the angle o
Fofino [41]

Answer:

32.1

Explanation:

NOTE: You did not state the angle of incidence, and thus, I will be using 45° as my angle of incidence, all you need to do is replace it with your own value if it's different.

To solve this question, we are going to be using Snell's Law.

Snell's law describes the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

Snell's law is mathematically given as

sin(A1)/sin(A2) = n2/n1, where

n1 = incidence index

n2 = refracted index

A1 = incidence angle

A2 = refracted angle

The refraction index of oil is 1.15, and that of water is 1.33, so

if we take oil first,

sin A2 = (n1.sinA1)/n2

sin A2 = (1 * sin 45)/1.15

sin A2 = 0.7071/1.15

sin A2 = 0.6149

A2 = sin^-1 0.6149

A2 = 37.9°

Then

sin A3 = (1.15 * sin 37.9) / 1.33

sin A3 = (0.6149 * 1.15) / 1.33

sin A3 = 0.7071 / 1.33

sin A3 = 0.5317

A3 = sin^-1 0.5317

A3 = 32.1

4 0
3 years ago
If you pull on a box with a force of 5 N and your teacher pulls on the same box with a force of 5 N in the opposite direction, t
antiseptic1488 [7]

Answer:

A. 0N

Explanation:

assume you're pulling in the positive direction, then we have 5 + (-5) = netforce = 0N

6 0
2 years ago
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