Compare the charge of electron , proton and neutron.

Calculate the Schwarzschild radius of a black hole with the mass of a) the Sun. b) a proton. How does this result compare with the size scale $10^{-15} \mathrm{~m}$ usually associated with a proton?

(II) (b) What would be the momentum of this proton?

A proton is released from rest in a region of space with a nonzero electric field. As the proton moves, does the electric potential energy of the system increase, decrease, or stay the same?

Compare the energy available between colliding-beam and stationary-target experiments with proton-proton collisions for each of these kinetic energies: (b) $10 \mathrm{GeV}$.

Calculate the Schwarzschild radius of a black hole with the mass of b) a proton. How does this result compare with the size scale of $10^{-15} \mathrm{~m}$ usually associated with a proton?

A proton is bent into a circular path of radius $2 \mathrm{~m}$ by a magnetic field of $0.5 \mathrm{~T}$. (a) What is the momentum of the proton? (b) What is its kinetic energy?

A proton is projected into a uniform electric field that points vertically upward and has magnitude $E$. The initial velocity of the proton has a magnitude $v_0$ and is directed at an angle $\alpha$ below the horizontal. (b) After what horizontal distance $d$ does the proton return to its original elevation?

A proton, moving with a velocity of $v_i \hat{\mathbf{i}}$, collides elastically with another proton that is initially at rest. If the two protons have equal speeds after the collision, find (a) the speed of each proton after the collision in terms of $v_i$ and (b) the direction of the velocity vectors after the collision.

A projectile proton with a speed of $500 \text{~m/s}$ collides elastically with a target proton initially at rest. The two protons then move along perpendicular paths, with the projectile path at 60 degrees from the original direction. After the collision, what is the speed of the target proton?

A proton is held at a fixed position. An electron is placed $0.75 \mathrm{~m}$ away and released. Find the electron's speed when it's $1.0 \mathrm{~mm}$ from the proton.

In an experiment in space, one proton is held fixed and another proton is released from rest a distance of 2.50 mm away. Sketch qualitative (no numbers!) acceleration–time and velocity–time graphs of the released proton’s motion.

A proton is instantaneously at a distance of $0.10 \mathrm{~m}$ from a long straight wire carrying a current of $30 \mathrm{~A}$. The speed of the proton is $5.0 \times 10^6 \mathrm{~m} / \mathrm{s}$, and its direction of motion is radially toward the wire. What is the magnitude of the force on the proton? What is the magnitude of the instantaneous acceleration of the proton? Draw a diagram displaying the direction of the current, and the proton's velocity and acceleration.

A proton and an antiproton collide head-on with equal kinetic energies. Two $\gamma$ rays with wavelengths of $0.780 \mathrm{fm}$ are produced. Calculate the kinetic energy of the incident proton.