Answer:
How does the particle model of matter describe solids, liquids and gases? How does the ... You will see that they are packed in a regular arrangement. ... Their particles are free to move around, filling the spaces left by other particles. Look at ...
Explanation:
This is true since all matter contains some form of energy even just moving electrons and friction count as energy
Answer:
The correct option is (b).
Explanation:
The relation between the wavelength and frequency is given by :
Where
v is the wave speed
f is the frequency of a wave
It is clear from the above equation that the wavelengths and frequency can vary inversely to produce the same wave speed.
Answer:
(a) = 0 N
(b) = 2.4 N
Explanation:
given
box of banana weight = 40.0 N
coefficient of static friction μ = 0.40
coefficient of kinetic friction = 0.20
a). when no horizontal force is applied .
according to Newton 's third law of motion If there is no force applied to the box,so the frictional force exerted is 0 N
b) magnitude of friction force
box and the box is initially at rest
friction force =.Static friction coefficient × weight of the box
friction force = 0.40 × 6
friction force = 2.4 N
Answer:
0.8084g/cm³
Explanation:
For calculating density, mass is divided by volume.
Its units is commonly in grams per cubic centimeters.
Therefore,
density= mass/volume
= 404.2/500
=0.8084g/cm³
