Other Physics Answers

How much charge is on each plate of a 4.00-µF capacitor when it is connected

to a 12.0-V battery (? (b) If this same capacitor is connected to a 1.50-V

battery, what charge is stored?

A capacitor is constructed from two conductive metal plates 30cm x 50cm

which are spaced 6mm apart from each other, and uses dry air as its only

dielectric material. Calculate the capacitance of the capacitor. (0.221nF).

Find the total capacitance for three capacitors connected in series, given their 

individual capacitances are 1.000, 5.000, and 8.000 µF. (0.755µF)

A height of 0.81m of a column of liquid (x) exerts the same pressure as a heavy box of weight 68,040N the base area of the box is 10m^2 what is the density of liquid (x)

A ball is thrown vertically upwards with an initial velocity of 30 m/s.

Using a time step of 0.02 s up to 6.20 s, plot the graph of the vertical distance versustime for this ball.

Hint ; Motion under gravity is described by the equation : 𝑣𝑦 = 𝑣𝑜𝑦𝑡 +1/2𝑔𝑡^2

and gravitational acceleration 𝑔 is here taken as negative.

NB:Show calculations for the answer.

(i) To what maximum height does the ball rise?(show calculations)

(ii) What is the index of time at maximum height(show calculations)

(iii) How long does it take the ball to ascend to maximum height?(show calculations)

(iv) How long does it take the ball to hit the ground?

(v) What happens to the ball if the sign for gravitational acceleration is taken as

Determine the magnetic feild at the center of the semicircular piece of wire with radius 0.20 m. The current carried by the semi circular piece of wire is 150 A.

A circular coil of radius 5x10^-2m and with 40 turns is carrying a current of 0.25 A. determine the magnetic field of the circular coil at the center.

A spherical-shaped capacitor has a charge equivalent to 4.45 nanocoulombs when connected to a battery that has a voltage of 220 V. Suppose the two shells of the spherical capacitor are 5.34 centimeters apart, what are the capacitance and the radius of the inner sphere?

Calculate the potential difference of a battery connected to a capacitor consisting of two parallel plates with an area of 1.75 cm2 and a separation distance of 4.33 mm. Suppose that the charge present on the two plates is equal to 2.67 picocoulombs.

Justine is ice-skating at the Lloyd Center. What is her final velocity if she accelerates at a rate of

2.0 m/s2 for 3.5 seconds?