




Card 4 / 5:
photon momentum
the amount of momentum a photon has, calculated by p = h λ = E c

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Questions & Answers
is the amount of an object
Sendawula
advantages of CRO over ordinary voltmeter
what is the difference between displacement and distance?!
If a system is said to be under equilibrium whenever there is no force act upon it... And it remain in its initial stage..
soniya
It is the ease with which electrical charges or heat can be transmitted through a material or a solution.
Cffrrcvccgg
how to find magnitude and direction
how to caclculate for speed
Arjune
derivation of resistance
Kazeem
R=v/I where R=resistor, v=voltage, I=current
Kazeem
A puck is moving on an air hockey table. Relative to an x, y
coordinate system at time t 0 s, the x components of the puck’s initial velocity and acceleration are v0x 1.0 m/s and ax 2.0 m/s2
.
The y components of the puck’s initial velocity and acceleration are
v0y 2.0 m/s and ay 2.0
Arjune
Electric current is the flow of electrons
is there really flow of electrons exist?
babar
Yes It exists
Cffrrcvccgg
explain plz
how electrons flow
babar
if electron flows from where first come and end the first one
babar
an electron will flow accross a conductor because or when it posseses kinectic energy
Cffrrcvccgg
electron can not flow jist trasmit electrical energy
ghulam
free electrons of conductor
ankita
electric means the flow heat current.
electric means the flow of heat current in a circuit.
Serah
electric means the flow of heat current in a circuit.
Serah
electric means the flow of electric current through conductor
Sade
the continuos flow of electrons in a circuit is called electric
ANUBHA
electric means charge
ghulam
electric means current
Sade
flow of current.
Sendawula
a boy cycles continuously through a distance of 1.0km in 5minutes. calculate his average speed in ms1(meter per second). how do I solve this
speed = distance/time
be sure to convert the km to m and minutes to seconds
check my utube video "mathwithmrv speed"
PhysicswithMrV
d=1.0km÷1000=0.001
t=5×60=300s
s=d\t
s=0.001/300=0.0000033m\s
Serah
A puck is moving on an air hockey table. Relative to an x, y
coordinate system at time t 0 s, the x components of the puck’s initial velocity and acceleration are v0x 1.0 m/s and ax 2.0 m/s2
.
The y components of the puck’s initial velocity and acceleration are
v0y 2.0 m/s and ay 2.0
Arjune
D=1km=1000m
t=5mins×60secs=300sec
s=d/t=3.333m/s
Daniel
I think Daniel Glorious is ryt
Amalia
why we cannot use DC instead of AC in a transformer
becuse the d .c cannot travel for long distance trnsmission
ghulam
branch of science which deals with matter energy and their relationship between them
ghulam
what is heat and temperature
how does sound affect temperature
sound is directly proportional to the temperature.
juny
Source:
OpenStax, College physics. OpenStax CNX. Jul 27, 2015 Download for free at http://legacy.cnx.org/content/col11406/1.9
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