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3 years ago

How much work is done when 0.0050 c is moved through a potential difference of 9.0 v? use w = qv?

Physics

2 answers:

quester [9]3 years ago

8 0

Answer:

0.045 APEX

Explanation:

quester [9]3 years ago

4 0

Answer:

0.045 J

Explanation:

The work done on a charge moving through a potential difference is given by

$W=q\Delta V$

where

W is the work done

q is the charge

$\Delta V$ is the potential difference

In this problem, we have

q = 0.0050 C is the charge

$\Delta V=9.0 V$ is the potential difference

Using the formula, we find the work done:

$W=(0.0050 C)(9.0 V)=0.045 J$

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A neutral atom of tin (Z = 50) has 69 neutrons. (a) How many protons does it have? (b) What is its mass number?

Olenka [21]

Answer:

Protons = 50

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Explanation:

A neutral of tin, Sn, has a Z value of 50 and neutrons are 69.

Z is the atomic number. The atomic number is equal to number of protons or number of electrons in an atom that is neutral i.e:

Z = PROTONS = ELECTRONS

So the number of protons = 50 since Z is 50

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The bulk of the mass of an atom is concentrated in the nucleus. To calculate mass number, we simply sum all the elementary particles in the nucleus i.e protons and neutrons. These particles are called the nucleons.

Mass number (A) = P + N

= 50 + 69

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Number 4

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6 0

4 years ago

Read 2 more answers

What is the weight of a pumpkin with a mass of 5 kg? kk

pav-90 [236]

Explanation:

actually, the question would need to give you what is the gravitational force, so let's take the average of the gravitational for me which is 10 N /kg

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W = mg

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hope it is helpful, if not please report it so that someone else gets to try

please vote

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3 years ago

A spring stretches 0.018 m when a 2.8-kg object is suspendedfrom its end. How much mass should be attached to this spring sothat

agasfer [191]

Answer:

m = 4.29 kg

Explanation:

Given that,

Mass of the object, m = 2.8 kg

Stretching in the spring, x = 0.018 m

Frequency of vibration, f = 3 Hz

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$mg=kx$