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sasho [114]
2 years ago
9

Use the drop-down menus to answer each question. How do objects with the same charge interact? How do objects with opposite char

ges interact? How do uncharged objects interact?
Physics
2 answers:
ValentinkaMS [17]2 years ago
5 0

It's very tough to use the drop-down menus for this.  I'll just do the best I can without them.

-- Objects with the same charge repel each other with electrostatic force, and attract each other with gravity.  You can ignore the gravity because the electrostatic force is so much stronger.

-- Objects with opposite charge attract each other with electrostatic force, and also attract each other with gravity.  You can ignore the gravity because the electrostatic force is so much stronger.

-- Objects with no charge have no electrostatic force between them, and they only attract each other with gravity.  

yKpoI14uk [10]2 years ago
5 0

How do objects with the same charge interact?

- They repel each other.

How do objects with opposite charges interact?

- They attract each other.

How do uncharged objects interact?

- They have no effect on each other.

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Calculate time period of a simple pendulum if it takes 72 seconds to complete 24 oscillations
kipiarov [429]

72s for 24 complete oscillations.

Thus, a complete oscillation takes 72/24=3s

Answer: period T=3s

8 0
2 years ago
If a 10 meter ramp helps you move a 500 kg object up 1 meter. What was the mechanical advantage of the ramp?
sattari [20]
The mechanical advantage of an inclined plane is

(Length of the incline) / (its height)

= (10m) / (1m)

= 10 .

It's the same for any load, and doesn't depend on the mass that you're trying to move up or down the ramp.
6 0
2 years ago
An experiment is designed to test what color of light will activate a photoelectric cell the best. The photocell is set in a cir
Natalija [7]

A photoelectric cell is an electronic device which is used to convert light energy into electric energy.The operation of this device is based on photoelectric effect.

Light of suitable frequency i.e greater or equal to threshold frequency will fall on the cathode maintained at negative potential.The electron emission will take place and these electrons are drifted towards the anode which is at positive potential.

Here,only those radiations will be capable of emitting electrons irrespective of surface barrier of metals whose energy is greater than the work function.

We know that the radiation having long wavelength has least energy as energy and wavelength are inversely proportional to each other.

Mathematically\ energy\ E=\frac{hc}{\lambda}

Here h is the Planck's constant,c is the velocity of light.

Here we have been given red light and blue light.

In the visible spectrum of radiation, the red light has longer wavelength than all other colors of light.Hence blue light has more energy as it's wavelength is less as compared to red light.

Hence, the blue light will activate the most and red the least.

3 0
2 years ago
Read 2 more answers
You create a plot of voltage (in V) vs. time (in s) for an RC circuit as the capacitor is charging, where V=V_{0} \cdot \left(1-
creativ13 [48]

Answer:

The time constant and its uncertainty is t ± Δt = 0.526 ± 0.057 s

Explanation:

If we make a comparison we have to:

y = A*(1-e^-(C*x)) + B

If the time remains constant we have to:

t = R*C = 1/C

In this way we calculate the time constant and its uncertainty. this will be equal to:

t ± Δt = (1/1.901) ± (0.2051/1.901)*(1/1.901) = 0.526 ± 0.057 s

3 0
2 years ago
Let A be the last two digits and let B be the sum of the last three digits of your 8-digit student ID. (Example: For 20245347, A
zheka24 [161]

Answer:

The speed is 173 m/s.

Explanation:

Given that,

A = 47

B = 14

Length 1 urk = 58.0 m

An hour is divided into 125 time units named dorts.

3600 s = 125 dots

dorts = 28.8 s

Speed v= (25.0+A+B) urks/dort

We need to convert the speed into meters per second

Put the value of A and B into the speed

v=25.0+47+14

v =86\ urk s/dort

v=86\times\dfrac{58.0}{28.8}

v=173.19\ m/s

Hence, The speed is 173 m/s.

7 0
2 years ago
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