Other Physics Answers

What is the force of the gravity that is exerted on the Earth by the sun? The mass of the sun and earth are 1.99 × 10^30kg and 5.97×10^24kg respectively. The distance between the earth and tye sun is 1.496 × 10 ^11 m.

A boy throws a ball of mass 0.293 - kg straight upward with an initial speed of 23m/s. When the ball returns to the boy, its speed is 18.24 m/s. How much work does air resistance do on the ball during its flight?

When a cylindrical capacitor is given a charge of 0.500 nC, a potential difference of 20.0 V is measured between the cylinders. What is the capacitance of this system?

The radius of the outer spear of a spherical capacitor is five times the radius of its inner shell . What are the dimensions of these capacitor if its capacitance is 5.00 picofarad?

The capacitors have values C1 = 2.5 μF and C2 = 4.0 μF, C3 =

6.0 μF C4 = 8.0 μF and the potential difference across the battery is

12.0 V. Assume that the capacitors are connected in series. Find the

equivalent capacitance of the circuit and solve for the potential

difference across each capacitors.

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?

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?

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.

Find the total capacitance of the combination of capacitors shown in Figure

number 3. Assume the capacitances are known to three decimal places (C1 =

1.000 µF, C2 = 3.000 µF, and C3 = 8.000 µF), and round your answer to three

decimal places. (8.833µF)