Answer:
D)Not enough information
Explanation:
According to Pascal's principle, the pressure exerted on the two pistons is equal:
Pressure is given by the ratio between force F and area A, so we can write
The force exerted on each piston is just equal to the weight of the corresponding mass: , where m is the mass and g is the gravitational acceleration. So the equation becomes
Now we can rewrite the mass as the product of volume, V, times density, d:
We also know that
So we can further re-arrange the equation (and simplify g as well):
We are also told that block B has bigger volume than block A: . However, this information is not enough to allow us to say if the fraction on the right is greater than 1 or smaller than 1: therefore, we cannot conclude anything about the densities of the two objects.
Answer:
Most electric charge is carried by the electrons and protons within an atom. Conversely, two protons repel each other, as do two electrons. Advertisement. Protons and electrons create electric fields, which exert a force called the Coulomb force, which radiates outward in all directions.
Answer:
20 m/s
Explanation:
The force experienced by a charged particle in an electric field is given by
where, in this problem:
is the charge of the particle
E is the electric field
The electric field here has components:
So the components of the force experienced by the particle are:
Now we can find the components of the acceleration experienced by the particle, using Newton's second law of motion:
where
m = 4.0 g = 0.004 kg is the mass of the particle
The 3 components of the acceleration are:
Now we can find the components of the velocity of the particle at time t using the suvat equation:
where:
are the initial components of the velocity
Therefore, at t = 2.0 s, we have:
And so, the speed of the particle is the magnitude of the final velocity:
Transmits i think sorry hope i helped
1). D. Combined Gas Law
3.) D. Pressure and temperature
4.) C. Boyles law