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2 years ago

A wave travels at 1,500 m/s with a frequency of 5 hertz. What is its wavelength?

Physics

1 answer:

Alex777 [14]2 years ago

7 0

Answer:

λ = 300 m

Explanation:

We are given;

Speed; v = 1500 m/s

Frequency; f = 5 Hz.

Formula for wavelength is given by;

λ = v/f

Plugging in the relevant values;

λ = 1500/5

λ = 300 m

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A 8.01-nC charge is located 1.87 m from a 4.50-nC point charge. (a) Find the magnitude of the electrostatic force that one charg

valkas [14]

Answer:

Explanation:

Given

$q_1=8.01\ nC$

$q_2=4.50\ nC$

distance between the charges is given by $d=1.87\ m$

Electrostatic force between the charges is given by

$F_{12}=F_{21}=\frac{kq_1q_2}{d^2}$

where k=constant $=9\times 10^{9}$

$F_{12}=F_{21}=\frac{9\times 10^9\times 8.01\times 4.50\times 10^{-18}}{(1.87)^2}$

$F_{12}=F_{21}=92.769\times 10^{-9}\ N$

as both the charges are of similar nature therefore they repel each other

8 0

2 years ago

a pennyfarthing is a style of a bicycle with a very large front wheel and a small real wheel, the cyclist who sit high above and

s344n2d4d5 [400]

Answer:

In one rotation, the large wheel turns 4m.

Explanation:

The given values are:

Input distance,

= 0.64 m

Mechanical advantage,

= 0.16

As we know,

⇒ $Out. \ Distance = \frac{Inp. \ distance}{Mechanical \ advantage}$

On putting the values, we get

⇒ $=\frac{0.64}{0.16}$

⇒ $=4 \ m$

4 0

3 years ago

What is the acceleration of a 10kg mass pushed by a 5N force?

GenaCL600 [577]

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

$a = \frac{f}{m} \\$

From the question we have

$a = \frac{5}{10} = \frac{1}{2} \\ = 0.5$

We have the final answer as

Hope this helps you

5 0

2 years ago

Given a force of 56 N and an acceleration of 7 m/s2<br><br> , what is the mass?

melisa1 [442]

Answer:

Your mass is 60 kg.

Explanation:

5 0

2 years ago

Guys help me with this question.

sleet_krkn [62]

Answer:

Explanation:

Brownian motion is a random (irregular) motion of particles e.g smoke particle. The set up in the diagram can be used to observe the motion of smoke.

1. The apparatus used are:

A is a source of light

B is a converging lens

C is a glass smoke cell

D is a microscope

2. The uses of the apparatus are:

A - produces the light required to so as to see clearly the movement of the particles.

B - converges the rays of light from the source to the smoke cell.

C - is made of glass and used for encamping the smoke particles so as not to mix with air.

D - is used for the clear view or observation or study of the motion of the smoke particles in the cell.

4 0

3 years ago