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Zarrin [17]
3 years ago
11

A -5.0 μC charge experiences a 11 i^ N electric force in a certain electric field. [Recall that i^ is a unit vector in the x-dir

ection.]
1. What force would a proton experience in the same field?
Physics
1 answer:
Pachacha [2.7K]3 years ago
3 0

Answer:

\vec{F}= -3.52\times 10^{-13}\hat{i}\ N

Explanation:

given,

charge = -5.0 μC

Electric force, F = 11 i^ N

force would a proton experience = ?

we know

\vec{F} = q \vec{E}

11\hat{i} = -5 \times 10^{-6} \vec{E}

\vec{E} =-2.2 \times 10^{6}\hat{i}

we know charge of proton is equal to 1.6 x 10⁻¹⁹ C

using formula

\vec{F} = q \vec{E}

\vec{F}= 1.6 \times 10^{-19}\times -2.2 \times 10^{6}\hat{i}

\vec{F}= -3.52\times 10^{-13}\hat{i}\ N

Force experienced by the photon in the same field is equal to \vec{F}= -3.52\times 10^{-13}\hat{i}\ N

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the skate shop owner wants 30 percent of each order to include longboards. he wants to know how many longboards to order out of
allsm [11]

Answer:

15

Explanation:

The question is essentially asking 30% of 50.

to get 30 percent you first need to find out 10 percent.

10 percent is calculated by dividing 50 by 10, giving you 5.

you then need to get 30 percent from the 10 percent just calculated.

to do so, you need to times 10 percent by 3, therefore have to time 5 buy 3, leaving you with 15

5 0
3 years ago
Read 2 more answers
What is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is Φ=
Oksi-84 [34.3K]

Answer:

The maximum wavelength of incident light that can produce photoelectrons from silver is 423.5 nm.

Explanation:

Given;

work function of silver, Φ = 2.93 eV = 2.93 x 1.602 x 10⁻¹⁹ J = 4.6939 x 10⁻¹⁹ J

Apply Einstein Photo electric effect;

E = K.E + Ф

Where;

E is the energy of the incident light

K.E is the kinetic of electron

Ф is the work function of silver surface

For the incident light to have maximum wavelength, the kinetic energy of the electron will be zero.

E = Ф

hf = Ф

h\frac{c}{\lambda} = \phi

where;

c is speed of light = 3 x 10⁸ m/s

h is Planck's constant, = 6.626 x 10⁻³⁴ J/s

λ is the wavelength of the incident light

\lambda = \frac{hc}{\phi}\\\\\lambda =\frac{6.626*10^{-34} *3*10^8}{4.6939*10^{-19}} \\\\\lambda = 4.235 *10^{-7} \ m\\\\\lambda = 423.5 *10^{-9} \ m\\\\\lambda = 423.5 \ nm

Therefore, the maximum wavelength of incident light that can produce photoelectrons from silver is 423.5 nm.

8 0
3 years ago
A car traveling with 500,000 J of kinetic energy is brought to a kinetic energy of
allsm [11]

Answer:

33,333.33 N

Explanation:

Given that :

Initial kinetic energy = 500,000 J

Final kinetic energy = 100,000 J

Using the relation :

Force * time = change in momentum (Newton's law)

Force (F) * 0.12 = (500,000 - 100,000)

0.12F = 400,000 J

Force = (400,000 J) / 0.12s

Force = 33333.333

Force = 33,333.33 N

3 0
3 years ago
a 2700-ohm reisstor in an electric circuit draws a current of 2.4 milliamperes. the total charge that passes through the reisito
svetoff [14.1K]
R = 2700 ohm
I = 2.4 mA = 2.4 × 10^(-3) A
I = Q/t
Q = I × t = 2.4 × 10^(-3) × 15 s = 36 C
5 0
4 years ago
Diana observed that the plants in her garden were not growing well due to poor soil conditions. She tested the soil and used the
n200080 [17]
The appropriate answer is c. silty clay loam. This is the most likely soil that was present in the garden before sand was added to balance it. This type of soil contains an even mix of silt and clay. This type of soil does not drain well and tends to hold water. This would not be suitable for most garden variety plants. Adding sand to the soil ensures better drainage and removes moisture that would rot roots or create conditions for fungi to develop.
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