All categories

3 years ago

When conducting this experiment, some procedures call for heating the substance several

Physics

1 answer:

Natalija [7]3 years ago

8 0

Answer:

when completing a science experiment it is important to run multiple tests do as to reduce the risk of any outliers of false results

You might be interested in

You must give a signal either by hand and arm or by a signal device: Only if other traffic is affected by your movement Only at

Vesnalui [34]

Hello there!

Anytime you change lanes.

Hope this helps :)

5 0

3 years ago

A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is

love history [14]

acceleration of object ais help the acceleration of an object b OD

3 0

3 years ago

What determines the pitch of a sound wave

saveliy_v [14]

Frequency of the wave " the loudness"

4 0

3 years ago

Read 2 more answers

In order to find density of an object, maria is trying is trying to measure its volume however the object doesn't not fit the to

MA_775_DIABLO [31]

Answer:

Yes

Explanation:

The density of the object does not change when it is broken in more pieces, therefore Maria will be able to find the density of the material.

In fact, by breaking the object, then she can take only one piece, and by measuring the mass of this piece and its volume she will be able to calculate the density of the material by using the formula:

$d=\frac{m}{V}$

where

m is the mass of the piece

V is its volume

d is the density

And the density will be the same for every piece, since they are made by the same material, and the density depends only on the properties of the material itself.

8 0

3 years ago

Read 2 more answers

Transverse waves are being generated on a rope under constant tension. By what factor is the required power increased or decreas

ICE Princess25 [194]

Answer:

a) when the length of the rope is doubled and the angular frequency remains constant: The power increases by factor of two

b) when the amplitude is doubled and the angular frequency is halved: The power is the same

c) when both the wavelength and the amplitude are doubled: The power increases by a factor of 8

d) when both the length of the rope and the wavelength are halved: The power increases by factor of two

Explanation:

For a sinusoidal mechanical wave (Transverse wave), the time-averaged power is the energy associated with a wavelength divided by the period of the wave.

$P_{avg} =\frac{E \lambda}{T}=\frac{1}{2} \mu A^2 \omega^2 \frac{\lambda}{T}$

where;

A is the Amplitude

ω is the angular frequency

λ is the wavelength

a) when the length of the rope is doubled and the angular frequency remains constant

L = λ/2, λ = 2L

The power increases by factor of two

b) when the amplitude is doubled and the angular frequency is halved

$P_{avg} ={\frac{1}{2} \mu (2A)^2 (\frac{\omega}{2}) ^2 \frac{\lambda}{T} = \frac{1}{2} \mu A^2 \omega^2 \frac{\lambda}{T}$

The power is the same

c) when both the wavelength and the amplitude are doubled

$P_{avg} =\frac{1}{2} \mu (2A)^2 \omega^2 \frac{(2\lambda)}{T} = \frac{1}{2} \mu (4A^2) \omega^2 \frac{(2\lambda)}{T} = 8 (\frac{1}{2} \mu A^2 \omega^2 \frac{\lambda}{T})$

The power increases by a factor of 8

d) when both the length of the rope and the wavelength are halved

L = λ/2

when both are halved

L/2 = λ/4, λ = 2L

The power increases by factor of two

8 0

3 years ago