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Natalija [7]
4 years ago
15

Question 9: All parts thank you !

Physics
1 answer:
WINSTONCH [101]4 years ago
5 0
Photo Math is the answer
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Two electrodes connected to a 9.0 v battery are charged to ±45 nc. What is the capacitance of the electrode?
mart [117]

Answer:

5\cdot 10^{-9} F

Explanation:

The capacitance of the electrode is given by:

C=\frac{Q}{V}

where

C is the capacitance

Q is the charge on the electrode

V is the potential difference

In this problem, we have

Q=45 nC=45\cdot 10^{-9} C

V = 9.0 V

Substituting into the equation, we find

C=\frac{45\cdot 10^{-9}C}{9.0 V}=5\cdot 10^{-9} F (5 nF)

6 0
3 years ago
The electric potential, when measured at a point equidistant from two particles that have charges equal in magnitude but of oppo
Reika [66]

Answer:

C) equal to zero

Explanation:

Electric potential is calculated by multiplying constant and charge, then dividing it by distance. The location that we want to measure is equidistant from two particles, mean that the distance from both particles is the same(r2=r1). The charges of the particle have equal strength of magnitude but the opposite sign(q2=-q1). The resultant will be:V = kq/r

ΔV= V1 + V2= kq1/r1 + kq2/r2

ΔV= V1 + V2= kq1/r1 + k(-q1)/(r)1

ΔV= kq1/r1 - kq1/r1

ΔV=0

The electric potential equal to zero

4 0
4 years ago
Galileo discovered that which planet undergoes phases as viewed from earth?
balu736 [363]
<h2>Answer: Venus</h2>

Galileo was the first to use the telescope to observe the heavens, mainly observing the Moon, the Sun with its sunspots, Jupiter with its moons and Venus (in the early 1600s).

In the case of Venus, he observed that it presented phases (such as those of the moon) together with a variation in size; observations that are only compatible with the fact that Venus rotates around the Sun and not around Earth.

This is because Venus presented its smaller size when it is in full phase and the largest size when it is in the new one, when it is between the Sun and the Earth.

These images along with other discoveries were presented to the Catholic Church (which supported the <u>geocentric theory</u> for that time) as a proof that completely refutes Ptolemy's geocentric system and affirms <u>Copernicus' heliocentric theory.</u>

3 0
4 years ago
Design a modified priority encoder that receives an 8-bit input, A7:0and produces a 3-bit output, Y2:0. Y indicates the most sig
cupoosta [38]

Answer:

Explanation:

The first image that I attached to this solution is the diagram of a truth table for an 8 to 3 bit encoder.

The second image  gives a sketch of the schematic.

The Boolean expression for the priority encoder including its zero inputs is defined in the third image attached.

Below is a snippet of the code for an 8 to 3 bit Priority encoder:

library IEEE;

use IEEE.STD_LOGIC_1164.all;

entity encoder8_3 is

   port(

       din : in STD_LOGIC_VECTOR(7 downto 0);

       dout : out STD_LOGIC_VECTOR(2 downto 0)

        );

end encoder8_3;

architecture encoder8_3_arc of encoder8_3 is

begin

   dout <= "000" when (din="10000000") else

           "001" when (din="01000000") else

           "010" when (din="00100000") else

           "011" when (din="00010000") else

           "100" when (din="00001000") else

           "101" when (din="00000100") else

           "110" when (din="00000010") else

           "111";

end encoder8_3_arc;

3 0
3 years ago
Select the statements that describe a vector. Check all that apply
lozanna [386]
Vectors have both size and direction.
Vectors are indicated with arrows.
Vectors can have positive or negative values.
5 0
3 years ago
Read 2 more answers
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