Answer:1) d - it's always zero
2) a- 0
3) eta = - epsilon_0E
Explanation:
1) When a conductor is placed in an external electric field, the charges will accumulate to the two ends of the conductor depending on the direction of the field. As a result of this charge accumulation, the inside field develops and cancels with the outside field. Leaving the net field is always zero
2) we already know from answer 1, that there is a zero net electric field inside a conductor; therefore, if you surround any internal point with a Gaussian surface, there will be no flow at any point on this surface, and hence the surface will enclose zero net charge. Therefore, the charge density must be zero everywhere inside the conductor.
3) the charge density will be given as:
eta = - epsilon_0E
The impact of the material
type with which the slope is made affects the acceleration. Acceleration will
be higher and smoother if the material of the slope surface is smoother as
opposed to a texture which is not smooth. Smoother surface allows more acceleration
because it will have less friction and resistance. Otherwise the friction will
slow the object down for example a grassy ground will have more friction than a
well maintained marble floor.
Answer:
89.11kg
Explanation:
Note an object weighs less when in a fluid and the weight of the volume of the fluid displaced is known as the upthrust.
Now, the person is going to displace the volume 89/1025 =0.087m3 { from density D = mass(M)/volume(V)}
The weight of the fluid displaced is the density of the fluid × volume of fluid displaced.
The weight of the fluid=0.087m3× 1kg/me = 0.087kg
Now the weight of the fluid displaced is referred to as the upthrust.
Now the real weight - the apparent weight = the upthrust.
Hence the apparent weight = real weight - upthrust
Apparent weight = 89.2-0.087 = 89.11kg
Answer:
near a flame and a hot plate
Explanation:
Answer:
2, less than the change in momentum
Explanation:
hope this helps!! :)
