Answer:
a)
there r two types of motion, uniform and non-uniform
uniform means equal distance travelled at equal intervals of time
and non-uniform is exactly the opposite.
b)
quantities which can be represented by magnitude along r called scalar quantities such as speed.
quantities which need magnitude along with direction r called vector quantities such as velocity.
c)
velocity=10m/s
acceleration = u-v/s i.e initial final velocity - initial velocity upon time
acceleration= 0.2m/s sq
time= 30s
10 = displacement/time
10 = x/30
10 = 300
Answer is 300 meters - distance/displacement.
According to the plot, the positions at time <em>t</em> = 0 s and <em>t</em> = 19 s are -1 m and -2 m, respectively. So the average velocity for the 19-s interval is
The blue car is moving with a velocity of -14 m/s using the red car as a reference frame.
Answer:
They all have frequency, wavelength, amplitude, speed and also all transfer energy.
Answer: 
Explanation:
The de Broglie wavelength 
is given by the following formula:
(1)
Where:
is the Planck constant
is the momentum of the atom, which is given by:
(2)
Where:
is the mass of the electron
is the velocity of the electron (we are told it is 1/10 the speed of light 
)
This means equation (2) can be written as:
(3)
Substituting (3) in (1):
(4)
(5)
Now, we only have to find :
(6)
<u>Finally:</u>
>>> This is the de Broglie wavelength of an electron.
