Answer:
E) is described by all of these
Explanation:
The magnetic force on a charged particle is expressed as:
F = qv * B = qvBsinθ
Where,
q = charge on particle
θ = angle between the magnetic field and the particle velocity.
v = velocity of the particle
B = magnitude of field vector
From here, we could denote that magnetic force, F depends on charge on particle, velocity of particle, magnitude of field vector.
The magnetic force on a charged particle is at right angles to both the velocity of the particle. The magnetic force and magnetic field in a charged particle are perpendicular to each other, the right hand rule is used to determine the direction of force.
The correct option is E.
Answer:
thermodynamics
Explanation:
The laws of thermodynamics define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium.
Medical movement for disabilities people
Answer:twice of initial value
Explanation:
Given
spring compresses
distance for some initial speed
Suppose v is the initial speed and k be the spring constant
Applying conservation of energy
kinetic energy converted into spring Elastic potential energy
![\dfrac{1}{2}mv^2=\dfrac{1}{2}kx_1^2----1](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7Dmv%5E2%3D%5Cdfrac%7B1%7D%7B2%7Dkx_1%5E2----1)
When speed doubles
![\dfrac{1}{2}m(2v)^2=\dfrac{1}{2}kx_2^2----2](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7Dm%282v%29%5E2%3D%5Cdfrac%7B1%7D%7B2%7Dkx_2%5E2----2)
divide 1 and 2
![\dfrac{1}{4}=\dfrac{x_1^2}{x_2^2}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B4%7D%3D%5Cdfrac%7Bx_1%5E2%7D%7Bx_2%5E2%7D)
![x_2=2x_1](https://tex.z-dn.net/?f=x_2%3D2x_1)
Therefore spring compresses twice the initial value