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4 years ago

Which equations should be used only in a uniform electric field? Check all that apply.

Physics

2 answers:

abruzzese [7]4 years ago

5 0

Work = qEd.

In non uniform field, need to integrate it mathematically.

V=Ed

---------

F=qE works for any field ... that of a point charge

quester [9]4 years ago

4 0

Work = qEd.

In non uniform field, need to integrate it mathematically.

V=Ed

---------

F=qE works for any field ... that of a point charge

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Which situation is the best example of translational motion? Question 1 options: a coin spinning on a desk a leaf blowing across

lukranit [14]

Translational motion is a type of motion in which objects move with a change in position. The situation that best shows the translational motion is leaf blowing in the field.

Translational Motion:

It is a type of motion in which objects move with a change in position.

For example- leaf blowing in the field.

Coin spinning on the desk does not change its position.

A car in the parking lot with running engine does not change its position.

Standing in feet is not any kind of movement.

Therefore, the situation that best shows the translational motion is leaf blowing in the field.

Learn more about Translational Motion:

brainly.com/question/2416005

7 0

3 years ago

2) A skier stands at rest and begins to ski downhill with an acceleration of 3.0 m/s² {downhill). What is

Finger [1]

Answer:

337.5m

Explanation:

Kinematics

Under constant acceleration, the kinematic equation holds:

$s=\frac{1}{2}at^2+v_ot+s_o$ , where "s" is the position at time "t", "a" is the constant acceleration, " $v_o$ " is the initial velocity, and $s_o$ is the initial position.

Defining Displacement

Displacement is the difference in positions: $s-s_o$ or $\Delta s$
$s=\frac{1}{2}at^2+v_ot+s_o$

$s-s_o=\frac{1}{2}at^2+v_ot$

$\Delta s=\frac{1}{2}at^2+v_ot$

Using known information

Given that the initial velocity is zero ("skier stands at rest"), and zero times anything is zero, and zero plus anything remains unchanged, the equation simplifies further to the following:

$\Delta s=\frac{1}{2}at^2+v_ot$

$\Delta s=\frac{1}{2}at^2+(0)*t$

$\Delta s=\frac{1}{2}at^2+0$

$\Delta s=\frac{1}{2}at^2$

So, to find the displacement after 15 seconds, with a constant acceleration of 3.0 m/s², substitute the known values, and simplify:

$\Delta s=\frac{1}{2}at^2$

$\Delta s=\frac{1}{2}(3.0[\frac{m}{s^2}])(15.0[s])^2$

$\Delta s=337.5[m]$

5 0

2 years ago

What is the wavelength of red light in vacuum that has a frequency of 4.00 × 1014 hz?

Pachacha [2.7K]

Answer: $7.5(10)^{-7} m$

Explanation:

The frequency $\nu$ of an electromagnetic wave is given by the following equation:

$\nu=\frac{c}{\lambda}$

Where:

$c=3(10)^{8} m/s$ is the speed of light in vacuum

$\nu=4(10)^{14} Hz$ is the frequency of red light

$\lambda$ is the wavelength of red light

Isolating $\lambda$ :

$\lambda=\frac{c}{\nu}$

$\lambda=\frac{3(10)^{8} m/s}{4(10)^{14} Hz}$

Finally:

$\lambda=7.5(10)^{-7} m$

6 0

4 years ago

When you approach a light source that in turn is moving towards you, your speed relative to the emitted light waves _____.?

Natalka [10]

This is a trick question:

The Doppler effect states that as you move closer to the source, the frequency of light(or sound/waves in general) increases, but technically the speed of light is always the same speed, even if you are moving at the speed of light.

Thus, the answer would be something along the lines of don't change.

7 0

4 years ago

Read 2 more answers

1. What happens to particle spacing when temperature increase, What we call this process?

enot [183]

Answer:

Particle spacing increases and it's called evaporating

5 0

4 years ago