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Sophie [7]
3 years ago
13

What makes magnetic objects different from non- magnetic objects?

Physics
1 answer:
Reil [10]3 years ago
4 0
Magnets are different because the molecules in magnets are arranged so that their electrons spin in the same direction.
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An oil droplet is levitated and held at rest in a region where the electric field is 1.4x104 N/C directed vertically downwards.
Ratling [72]

W = m g     weight of drop

W = q E

m = q E / g = = 3 e E / g

m = 3 * 1.6E-19 * 1.4E4 / 9.8 = 6.96E-16 kg

8 0
2 years ago
First, you will investigate purely vertical motion. The kinematics equation for vertical motion (ignoring air resistance) is giv
AlladinOne [14]

Answer: It takes 2.85 seconds.

Explanation: according to the question, the kinematics equation for vertical motion is

y(t) = y_{0} + v_{0} .t - \frac{1}{2} .gt^{2}

y₀ is the initial postion and equals 0 because it is fired at ground level;

v₀ is the initial speed and eqauls 14m/s;

g is gravity and it is 9.8m/s²;

y(t) is the final position and equals 0 because it is when the pumpkin hits the ground;

Rewriting the equation, we have:

0 + 14t - \frac{1}{2}.9.8.t^{2} = 0

14t - 4.9t² = 0

t(14 - 4.9t) = 0

For this equation to be zero,

t = 0 or

14 - 4.9t = 0

- 4.9t = - 14

t = \frac{14}{4.9}

t = 2.86

It takes 2.86 seconds for the pumpkin to hit the ground.

6 0
3 years ago
I WILL MARK YOU AS BRAINLIEST IF RIGHT
butalik [34]

Answer:

25.4 miles per hour

Explanation:

speed=distance/time

speen=524/20.6 hours

=25.4 miles per hour

6 0
3 years ago
Can I have help? I REALLY need it! PLEASE!
valentina_108 [34]
Parallel .............
7 0
2 years ago
Write any three applicataion pressure in our daily life ?​
Nina [5.8K]

Answer:

because the gravity of the earth

4 0
2 years ago
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