Physics Answers

What is the capacitance of a parallel plate capacitor with metal

plates, each of area 1.50 m2, separated by 2.01 mm? What charge is

stored in this capacitor if a voltage of 2.50 × 103 V is applied to it?

A 0.5kg basketball moving at 1.4m/s collides with a 1.2kg bowling ball moving at 3.5m/s. After collision, the velocity of the basketball was increased by 0.4m/s. What is the final velocity of the bowling ball?

What is the capacitance of the empty shelves if they have area of 1.00x10 m and are 0.200 m apart?

a 300 kg has passenger with an unknown mass. From rest, the elevator accelerates upward at 1.2m/s/s. The cable supporting the elevator exerts and upward force of 8000 N. What is the maximum mass of the passenger that the elevator can carry?

Two identical point charges, 10 cm apart in air, repel each other with a force of 1 newton. Find the magnitude of each charge.

What is the force between an electron and a proton if they are 1.0x10-8cm?

What is the force between two electrons 1.0 centimeter apart in air?

Find (a) magnitude of the electric field 0.5 m from a 2.5 -μC point charge and (b) the magnitude and direction of the electrostatic force

 acting on an electron placed at that point.

two point charges are located on the positive x axis of a coordinate system charge q1=1.0nC is 2.0cm from the origin, another charge q2=-3.0nC os 4.0cm from the origin .what is the total force exerted by these two charges on charge q3=5.0nC located at The origin

A moon rock has 3 % of its original Al-26 mass. K/U T/I C

(a) Determine the age of the moon rock.

(b) Discuss any assumptions that must be made when

using this method of dating.