Agroup of particles is traveling in a magnetic field of unknown magnitude and direction. you observe that a proton moving at 1.20 km/s in the +x-direction experiences a force of 2.10×10−16 n in the +y-direction, and an electron moving at 4.20 km/s in the −z-direction experiences a force of 8.40×10−16 n in the +y-direction. part a what is the magnitude of the magnetic field?

To find the magnitude of the magnetic field, we can use either the proton or the electron.

The magnetic force experienced by a charged particle moving in a magnetic field is:

where
q is the charge
v is the velocity of the particle
B is the magnitude of the magnetic field
is the angle between the direction of v and B.

Let's take the proton. The particle is moving in the x-direction, while the force is in the y-direction: for the right-hand rule, this means that the magnetic field B is in the z-direction, so v and B are perpendicular and , so  and we can ignore it in the formula.

Therefore, we have:

or

and since we know the force intensity, the velocity of the proton v and its charge (), we can find the magnitude of B:

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.