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2 years ago

10

A very long, straight horizontal wire carries a current such that 8.25×1018 electrons per second pass any given point going from

west to east.
What is the magnitude of the magnetic field this wire produces at a point 5.00 cm directly above it?

1 answer:

Allushta [10]2 years ago

8 0

Answer: The magnitude of the magnetic field this wire produces is 5.56 × 10^-6 T

Explanation: Please see the attachments below

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Astronomers have discovered a new planet called "Xandar" beyond the orbit of Pluto (No, not really but I need a fake planet for

Burka [1]

Answer:

m = 1.82E+23 kg

Explanation:

G = universal gravitational constant = 6.67E-11 N·m²/kg²

r = radius of orbit = 72,600 km = 7.26E+07 m

C = circumference of orbit = 2πr = 4.56E+08 m

P = period of orbit = 12.9 d = 1,114,560 s

v = orbital velocity of satellite Jim = C/P = 409 m/s

m = mass of Xandar = to be determined

v = √(Gm/r)

v² = [√(Gm/r)]²

v² = Gm/r

rv² = Gm

rv²/G = m

m = rv²/G

mG = universal gravitational constant = 6.67E-11 N·m²/kg²

r = radius of orbit = 72,600 km = 7.26E+07 m

C = circumference of orbit = 2πr = 4.56E+08 m

P = period of orbit = 12.9 d = 1,114,560 s

v = orbital velocity of satellite Jim = C/P = 409 m/s

m = mass of Xandar = to be determined

v = √(Gm/r)

v² = [√(Gm/r)]²

v² = Gm/r

rv² = Gm

rv²/G = m

m = rv²/G

m = 1.82E+23 kg

3 0

2 years ago

Notice that in each conversion factor the numerator equals the denominator when units are taken into account. A common error in

navik [9.2K]

Answer:

he factor for the temporal part 1.296 107 s² = h²

m / s² = 12960 km / h²

Explanation:

This is a unit conversion exercise.

In the unit conversion, the size of the object is not changed, only the value with respect to which it is measured is changed, for this reason in the conversion the amount that is in parentheses must be worth one.

In this case, it is requested to convert a measure km/h²

Unfortunately, it is not clearly indicated what measure it is, but the most used unit in physics is m / s² , which is a measure of acceleration. Let's cut this down

the factor for the distance is 1000 m = 1 km

the factor for time is 3600 s = 1 h

let's make the conversion

m / s² (1km / 1000 m) (3600 s / 1h)²

note that as time is squared the conversion factor is also squared

m / s² = 12960 km / h²

the factor for the temporal part 1.29 107 s² = h²

6 0

2 years ago

In the absence of air resistance, at what other angle will a thrown ball go the same distance as one thrown at an angle of 75 de

snow_tiger [21]

As we know that range of the projectile motion is given by

$R = \frac{v^2 sin(2\theta)}{g}$

here we know that range will be same for two different angles

so here we can say the two angle must be complementary angles

so the two angles must be

$\theta, 90 - \theta$

so it is given that one of the projection angle is 75 degree

so other angle for same range must be 90 - 75 = 15 degree

so other projection angle must be 15 degree

5 0

2 years ago

80 foot-pounds of work is needed to move the sofa in Tyler's apartment. Which of the following statements is true?

erastova [34]

D is the correct answer
hop it helped.

3 0

2 years ago

Charge is placed on the surface of a 2.7-cm radius isolated conducting sphere. the surface charge density is uniform and has the

soldi70 [24.7K]

First, convert the radius of the sphere from centimeter to meter.
r = (2.7 cm)(1 m/ 100 cm)
r = 0.027 m

Then, calculate for the surface area of the given by the equation,
A = 4πr²

Substituting the known values,
A = 4(π)(0.027 m)²
A = 9.16 x 10⁻³ m²

Then, multiply the calculated area to the charge density given to determine the total charge.
C = (6.9 x 10⁻⁶ C/m²)(9.16 x 10⁻³ m²)
C = 6.32 x10⁻⁸ C

<em>Answer: C = 6.32 x 10⁻⁸ C</em>

5 0

2 years ago