Answer:
Explanation:
= Permittivity of free space = 
= Distance charge traveled = 2 m
v = Velocity of electron = 420 m/s
E = Electric field
= Mass of electron = 
= Charge of electron = 
As the energy of the system is conserved we have
For an infinite non conducting sheet electric field is given by
The surface charge density is
Answer:
These are the two basic forms of energy. The different types of energy include thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy.
Explanation:
The correct answer of the question is : A) Orbits a star, B) Gravity makes spherical and D) Clear orbits of other objects.
EXPLANATION :
The classification of a celestial object to be a planet depends on some parameters.
The most important thing about the planet is that it must clear its orbit. It means it won't share its orbit with other planets. Otherwise, it will be considered as a dwarf planet.
The second thing is that it must move around any stars. The star becomes the centre of that solar system around which planets start revolving in different orbits.
The third thing is that planets are approximately spherical in shape.
The size of the planets does not play a crucial role in the classification of planets. Planets may be smaller than mercury also.
Hence, all the options except the third one are suitable.
Answer:
400.7886829 rad/s
Explanation:
First we have to turn our 0.35 rev/s into rad/s using the equation
(Xrev/s)*2pi=Xrad/s we can plug in .35*2pi=.7pi rad/s
Now we can us the equation m_1*v_1*r_1^2=m_1*v_2*r_2^2 we can plug in the given. Because the mass remains the same we can cross it off of both sides giving us just: v_1*r_1^2=v_2*r_2^2
(.7pi)*(.54)^2=(v_2)*(.04)^2
(.20412pi)=(v_2)*(.0016) [.20412pi=.6412618925]
then using division on both sides we get
(.6412618925/.0016)=v_2=400.79rad/s(This answer is rounded to the nearest hundreth)
See you in Mr.K's class tomorrow! -Ruben
