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BaLLatris [955]

4 years ago

11

What item produces a magnetic field in the electromagnetic

1 answer:

ikadub [295]4 years ago

4 0

Electric<span> current produces a magnetic field. This magnetic field can be visualized as a pattern of circular field lines surrounding a wire. One way to explore the direction of a magnetic field is with a </span>compass, as shown by a long straight current-carrying wire<span> in.

Hope this helps,

kwrob</span>

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Suzette had prepared the graph below to add to her lab

Charra [1.4K]

Answer:

A title

Explanation:

Because this is middle school.

4 0

3 years ago

Read 2 more answers

On an asteroid, the density of dust particles at a height of 3 cm is ~30% of its value just above the surface of the asteroid. A

Anvisha [2.4K]

From the law of atmosphere

$N_v(y) = n_0*e^{-\frac{mgy}{Kb*T}}$

Where

$n_0$ = constant and is number density where the height y = 0cm

$n_V$ = Number density at height y=3cm

Kb = Boltzmann constant $= 1.38*10^{-23}J/K$

$T=20K$

$m = 10^{-19}kg$

Re-arranging the equation to have the value of the gravity,

$\frac{N_v(y)}{n_0} = e^{-\frac{mghy}{KbT}}$

$ln(\frac{N_v(y)}{n_0}) = -\frac{mgy}{KbT}$

Since it is 30% of value above surface, therefore $N_v = 0.3n_0$

$ln(\frac{0.3n_0}{n_0}) = -\frac{mgy}{KbT}$

$g = -\frac{KbT ln(0.3)}{my}$

$g = -\frac{(1.38*10^{-23}J/K)(20K)(Ln(0.3))}{10^{-19}(3*10^{-2})}$

$g = \frac{1.38*2*ln(0.3)*10^{-22}}{3*10^{-4}}$

$g = 1.104*10^{-1}m/s^2$

$g = 0.1m/s^2$

Therefore the correct answer is C.

4 0

4 years ago

A man with his eye level 6 feet above the ground is standing 3 feet away from the base of a 15-foot vertical ladder. If he looks

DochEvi [55]

Answer:

Answer:

71.6°

Explanation:

According to the diagram

ED = 6 feet

DA = EB = 3 feet

AC = 15 feet

AB = ED = 6 feet

BC = AC - AB = 15 - 6 = 9 feet

Let the angle is θ from the horizontal

By the triangle EBC

tanθ = BC / EB = 9 / 3

tanθ = 3

θ = 71.6°

Thus, the angle from the horizontal is 71.6°.

Explanation:

7 0

4 years ago

If a ball leaves the ground with a vertical velocity of 5.46 m/s, how long does it take

kifflom [539]

Answer:

0.557 s

Explanation:

Given:

v₀ = 5.46 m/s

v = 0 m/s

a = -9.8 m/s²

Find: t

v = at + v₀

0 m/s = (-9.8 m/s²) t + 5.46 m/s

t = 0.557 s

8 0

3 years ago

A circus performer walked up and to the right for a total displacement of 10\,\text m10m10, start text, m, end text along a diag

Tanya [424]

Answer: 5m

(10m) sin 30

=5m

8 0

3 years ago