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3 years ago

10

10 joules of work (energy) is required to transfer 2 coulombs of charge from X to Y. What is the potential difference between th

ese two points?

1 answer:

ValentinkaMS [17]3 years ago

4 0

Answer:

5v

Explanation:

W = 10J ;Q = 2C ;V = ?

So,potential between x and y is 5v

Hope it will help you if not so please sorry.

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Water starts off its existence as a polarized molecule. A stream of water is deflected towards a nearby electrically charged obj

trapecia [35]

Answer:

Option d) can not be determined from the given information

Explanation:

Water is a polar molecule consisting of 2 positive hydrogen atoms and a negative oxygen atom.

When a stream of water is deflected by positively charged object, the water molecules are oriented in such a way that oxygen in water, being negatively charge gets attracted to the charged object and aligns near the object whereas hydrogen aligns on the opposite side overcoming the inter-atomic repulsion.

Similar is the case with hydrogen in case the object is negatively charged.

Therefore, it explains that water is a polar molecule and gets attracted to both positive and negative charges and hence, the sign of the object can not be determined.

3 0

3 years ago

A window in a house has a rectangular shape of 2.0 m by 1.0 m. The glass in the window is 0.5 cm thick, with a thermal conductiv

KonstantinChe [14]

Answer:

P = 5280 W

Explanation:

The conductivity of the materials determines that heat flows from the hot part to the cold part, the equation for thermal conductivity transfer is

P = Q / t = k A ( $T_{h}$ - $T_{c}$ ) / L

Where k is the thermal conductivity of the glass 0.8 W / ºC, A the area of the window, T the temperature and L is glass thickness

Let's calculate the window area

A = l * a

A = 2.0 1.0

A = 2.0 m²

Let's replace

L = 0.5 cm (1 m / 100 cm) = 0.005 m

P = 0.8 2 (20.5 - 4) / 0.005

P = 5280 W

7 0

3 years ago

Janice is unsure about her future career path. She has grown up on her family farm, but she is also interested in medicine. Jani

Vika [28.1K]

Answer:

d not joining FRA and joining HOSA INSTEAD

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4 years ago

Read 2 more answers

The London Eye, which is a giant Ferris wheel, has a diameter of 135 m. It revolves at a constant rate and takes 30 minutes to c

Maurinko [17]

Answer:

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

Explanation:

Diameter = 135 m

Radius, r = 0.5 x 135 = 67.5 m

It revolves at a constant rate and takes 30 minutes

Period, T = 30 minutes= 1800 s

$\texttt{Angular velocity, }\omega =\frac{2\pi }{T}=\frac{2\pi }{1800}=3.49\times 10^{-3}rad/s$

Linear velocity, v = radius x angular velocity

v = 67.5 x 3.98 x 10⁻³ = 0.2355 m/s

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

6 0

3 years ago

The latent heat of vaporization for ethyl alcohol is 854 J/g. The amount of energy, rounded to the nearest whole number, needed

Lorico [155]

Answer:

4441 J

Explanation:

The amount of energy needed to change the ethyl alcohol from liquid to gas state is given by

$Q=m \lambda_v$

where

m = 5.20 g is the mass of the alcohol

$\lambda_v = 854 J/g$ is the latent heat of vaporization of the substance

Substituting the numbers into the formula, we find:

$Q=(5.20 g)(854 J/g)=4,441 J$

7 0

4 years ago