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KonstantinChe [14]
3 years ago
7

A positive charge is moving across a room from south to north. A magnetic field runs from east to west. In what direction is the

magnetic force on the moving positive charge?
Physics
1 answer:
sp2606 [1]3 years ago
7 0

Answer:

the force is on the z axis, coming out of the blade

Explanation:

The direction of the magnetic force is given by the right hand rule,

For a positive charge, the thumb points in the direction of velocity, the other fingers extended in the direction of the magnetic field, and the palm points in the direction of force.

In this case.

Thumb points North

The fingers extended is in the east - west direction parallel to the blade

The palm is sticking out of the leaf, in the z direction

the answer is the force is on the z axis, coming out of the blade

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Alchen [17]

Answer:

4 m/s

Explanation:

Given:

Δx = 39 m

a = 6 m/s²

t = 3 s

Find: v₀

Δx = v₀ t + ½ at²

39 m = v₀ (3 s) + ½ (6 m/s²) (3 s)²

v₀ = 4 m/s

6 0
3 years ago
If an 18-wheeler truck travels 280,000m to transport its cargo in 8 hrs. (28,800s). What was it’s average velocity?
hram777 [196]

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Explanation:

5 0
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A lab technician needs to clean medical instruments that have been exposed to bacteria. Which electromagnetic wave
sveta [45]

Answer:

Ultraviolet wave

Explanation:

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Most medical equipment are usually sanitized by using this rays because the DNA of most bacteria can be innervated upon exposure to these ray.

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3 0
3 years ago
using hooke's law F spring = k Δ x find the force needed to stretch a spring 2 cm if it has elastic constant of 3 N/cm. A. 2/3 N
Assoli18 [71]
Data:
<span>Hooke represented mathematically his theory with the equation:
 
F = K * x
 
On what:
F (elastic force) = ?
K (elastic constant) = 3 N/cm
x (deformation or elongation of the elastic medium) = 2cm

Solving:

</span>F = K * x
F = 3 \frac{N}{\diagup\!\!\!\!\!\!cm}  * 2\diagup\!\!\!\!\!\!cm
\boxed{\boxed{F = 6N}}

Answer:
<span>C. 6 N</span>
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In a nuclear power plant, nuclear reactions are used to heat steam, which turns a turbine. What energy conversion is happening i
mr_godi [17]
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In other words, your answer is B.
8 0
3 years ago
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