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3 years ago

A wire perpendicular to the screen carries a current in the direction shown.

Physics

2 answers:

mrs_skeptik [129]3 years ago

8 0

Answer:

A) Up

Explanation:

The direction of the current in the wire is going out of the screen. We can use the right-hand rule to find the direction of the magnetic field at point Z. In fact, we have to:

- Put the thumb of the right hand in the same direction as the current (out of the screen)

- Wrap the other fingers around the thumb. The direction of the fingers will be the same as the direction of the magnetic field.

By doing this procedure with out right hand, we see that the other fingers at point Z are directed up, so the magnetic field is also directed up.

____ [38]3 years ago

4 0

A) Up is the direction of the magnetic field at point Z.

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What is the work of a 520n student walking a distance of 3 m

Wewaii [24]

Answer:

W=1560 Joules

Explanation:

Use W=fd

so, W=520N(3m)= 1560J

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3 years ago

A scientist is designing a device that will mimic Earth's atmosphere by

mafiozo [28]

Answer:

1. Ultraviolet light (UV)

2. X-rays

3. Gamma-rays

Explanation:

Though there are different types of energy or electromagnetic waves with varying wavelengths, including the likes of Gamma X-rays, ultraviolet light, visible light, infrared radiation, and microwave radiation.

What is more certain is that the atmosphere blocked the high-energy waves from getting to the earth surface or biosphere such as Ultraviolet light (UV), X-rays and Gamma-rays

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3 years ago

A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of 11.1 rad/s in 2.99 s.(a) fi

elena55 [62]

The angular acceleration of a rotating object is given by
$\alpha = \frac{\omega_f - \omega_i}{\Delta t}$
where
$\omega_f$ is the final angular speed of the object
$\omega_i$ is its initial angular speed
$\Delta t$ is the time taken to accelerate

For the wheel in our problem, $\omega_f=11.1 rad/s$ , $\omega_i = 0$ and $\Delta t=2.99 s$ , so its angular acceleration is
$\alpha= \frac{11.1 rad/s-0}{2.99 s}=3.71 rad/s^2$

8 0

2 years ago

How do you change current in a circuit without changing the voltage?

Sunny_sXe [5.5K]

Decrease the reactance is the correct answer i believe

Explanation:

4 0

3 years ago

Three capacitors (4.7, 6.5, and 15.5 F) are connected in series across a 50.0-V battery. Find the voltage across the 4.7-F capac

satela [25.4K]

Answer: 50 V

Explanation:

Given

Three capacitors are connected in parallel across 50 V battery

When capacitor are connected in parallel, net capacitance is the sum of all the values

Net capacitance

$\Rightarrow C=4.7+6.5+15.5\\\Rightarrow C=26.7\ F$

Voltage in parallel circuit is same across each capacitor. Therefore, voltage across 4.7 F capacitor is 50 V

6 0

3 years ago