A proton accelerates from rest in a uniform electric field of 640 N/C. At some later time, its speed is 1.20 x10^6 m/s. Find the magnitude of the acceleration of the proton. How long does it take the proton to reach this speed? (s) How far has it moved in that interval? (m) What is its kinetic energy at the later time? (J)

A proton moves at 4.20 x 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.80 x 10³ N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 4.50 cm horizontally. 107 ✔ns (b) Find its vertical displacement during the time interval in which it travels 4.50 cm horizontally. (Indicate direction with the sign of your answer.) 4.83 mm. (c) Find the horizontal and vertical components of its velocity after it has traveled 4.50 cm horizontally. = ( 0.0042 x Î + 0.00902 x j) km/s 7=

A proton and an alpha particle (charge = 2e, mass = 6.64 ✕ 10−27 kg) are initially at rest, separated by 8.76 ✕ 10−15 m. (c) Find the speeds of the proton and alpha particle, respectively, at infinity

An electron enters a region of uniform electric field with an initial velocity of 56 km/s in the same direction as the electric field, which has magnitude E = 50 N/C. (a) What is the speed of the electron 1.6 ns after entering this region? (b) How far does the electron travel during the 1.6 ns interval? (a) Number i 4.19E4 (b) Number i 8.056E-6 Units Units km/s um

A proton accelerates from rest in a uniform electric field of 660 N/C. At one later moment, its speed is 1.00 Mm/s (nonrelativistic because v is much less than the speed of light). (a) Find the acceleration of the proton. m/s² (b) Over what time interval does the proton reach this speed? (c) How far does it move in this time interval? (d) What is its kinetic energy at the end of this interval?

A uniform electric field of magnitude 404 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.10 cm. (a) What is the work done by the field on the electron?   (b) What is the change in potential energy associated with the electron?   (c) What is the velocity of the electron?

How much energy is stored in a storm cloud (volume = 5.0 * 10^9 m^3) due to an electric field of magnitude of 1.5 * 10^5 V/m?