Other Physics Answers

Find the value of Charge q₀ if its electric field has a value of 8.45 x 10^-3 N/C and a force F₀ of 1.3 N

Find the distance between the two charges, q₁ with 36 nC and q₂ with 22 nC. The electric potential energy is 9.912 x 11^-3 N x m

2.12 x 1014 protons and 3.55 𝑥 1016 electrons; the charge on this object is ____

Coulombs.

Show your solution and answer to acquire the charge on the object in

Coulombs.

4.6325 x 1015 protons and 4.6325 x 1015 electrons; the charge on this object is

____ Coulombs.

Show your solution and answer to acquire the charge on the object in

Coulombs.

A 198.4 and a 318.3-kg cart approach each other on a horizontal air track. They collide and stick together. After the collision their total kinetic energy is 1011. What is the speed after the collision?

If the work required to speed a car from 10 km/h to 20 km/h is 5.0 x 10^3 J, what would be the work required to increase its speed from 20 km/h to 30 km/h.

An object is projected from the ground with an initial velocity of 28.5m/s at 35⁰ above the horizontal. Find the following:

(a) horizontal and vertical components of its initial velocity,

(b) time to reach the maximum height,

(c) time of flight,

(d) maximum height,

(e) the speed at the maximum height

(f) range, and

(g) velocity upon striking the ground.

At what angle of incidence is light completely polarized after reflection from a surface of water? What is the corresponding angle of refraction? Assume that light is incident from air. The n of water=1.33.

A ball thrown vertically upward returns to its starting point at 4s. Find its initial speed.

Determine the force of gravitational attraction between the earth (m = 5.98 x 10²⁴ kg) and a 63.0-kg man if the man is standing at sea level, a distance of 6.38 x 10⁶ m from earth's center.

3. A point charge Qa = 3uC is located at point (0, 0) and another point Qb = - 7uC has the coordinates of (2, 3).

a) Find the electric force on charge Qa.

b) Is the force attractive or repulsive? Why?