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2 pts) A light wave is initially polarized in the +y direction and has intensity 1.0 W/m^2. It encounters a polarizer whose axis is 60 degrees counterclockwise from the +x axis. After the wave has emerged from the polarizer, i.
In which direction does its electric field point?
A. +x
B. +y
C. +z
D. 30° counterclockwise from +x
E. 60° counterclockwise from +x
ii. What is its intensity?
A. 0.25 W/m2
B. 0.50 W/m2
C. 0.75 W/m2
D. 0.87 W/m2
E. 1.0 W/m2
A uniform 3.0 kg disk of radius 30 cm is rotating around its central axis at an angular speed of 72 rad/s. At time t = 0, a man begins to slow it at a uniform rate until it stops at t = 20 s. (a) Find its angular acceleration. (b) By time t- 10 s, how much work had the man done? (c) For full 20 s, at what average rate did the man do work?
Tests made on the breaking strength of 10 pieces of a metal gave the following results: 578, 572, 570, 568, 572, 570, 570, 572, 598 and 584 kg. Test if the mean breaking strength of the wire can be assumed as 577 kg.
"use strict";
process.stdin.resume();
process.stdin.setEncoding("utf-8");
let inputString = "";
let currentLine = 0;
process.stdin.on("data", (inputStdin) => {
inputString += inputStdin;
});
process.stdin.on("end", (_) => {
inputString = inputString
.trim()
.split("\n")
.map((str) => str.trim());
main();
});
function readLine() {
return inputString[currentLine++];
}
function main() {
let integers = JSON.parse(readLine());
/* Please do not modify anything above this line */
/* Write your code here and log the output */
const productArrayItems = arr => arr.reduce((a, b) => a * b)
console.log(productArrayItems(integers));
}
notthis output ----> 1*2*3=6
If a student uses a sodium chloride solution containing 150g/dm3 what mass of sodium chloride is contained in 40cm3 of this solution ?
List and indicate the functions of the major regions of the cerebral hemispheres, diencephalon, brain stem and cerebellum. (20%- 5 marks for each region).
How many molecules are in 463g of Na20
A spherical ball has a radius of 0.2 m and electric charge is 20uc in its center.Calculate the electric flux pass through the spherical ball.
What is meant by EMF of a cell? How is it measured.
Discuss different techniques for the determination of transition point.
#340153 on Dec 2023