PLEASE HELP ASAP I WILL GIVE BRAINLIEST TO CORRECT ANSWER

Class 00 rubber gloves are used when working with voltages less than _____.

Radda [10]

Answer: 500 volts AC, 750 volts DC
Class 00 rubber gloves are given the color "beige" based on the color code of rubber gloves.
The proof test voltage for this class of rubber gloves is 2500 volts of AC voltage and 10000 volts of DC voltage

4 0

3 years ago

Making phone calls with a public box

AfilCa [17]

Answer:

ja ok it is so eassssy.........................

8 0

3 years ago

What is a dropcap as used in a computer word document

shutvik [7]

DROP CAP:-

<u>Drop caps are a specific kind of initial letter, large letters that appear at the beginning of a block of text. ... A drop cap is often used to signify that the reader's moved into a significant new section, or that a new chapter's begun.</u>

<u>Drop caps are a specific kind of initial letter, large letters that appear at the beginning of a block of text. ... A drop cap is often used to signify that the reader's moved into a significant new section, or that a new chapter's begun.A drop cap (dropped capital) is a large capital letter used as a decorative element at the beginning of a paragraph or section. The size of a drop cap is usually two or more lines. The following illustration shows your options for positioning a drop cap.</u>

3 0

3 years ago

A named storage location in the computer's memory that holds a piece of information is a(n):

DaniilM [7]

Variable or scalar is a storage address (identified by a memory address) paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a value.

5 0

3 years ago

g % Create a program to plot the motion of the ping pong ball with drag. % The program will take inputs for velocity in m/s and

Gala2k [10]

Answer:

% Create a program to plot the motion of the ping pong ball with drag.

% The program will take inputs for velocity in m/s and angle of launch.

% note that with a high speed camera I estmated a launch speed for a ping

% pong ball could be 30 m/s.

clear all

close all

clc

velStart=input('input the initial velocity in m/sec: ');

angle=20:5:80;

% convert the degrees into radians so MATLAB likes it

values_angle=angle*pi./180;

rangeAngle=length(values_angle);

hold on

%Lines 1 - 14 are fine

for i=1:rangeAngle

% set initial position and time

x=[];

y=[];

time=[];

vel=velStart;

VelocityX=[];

VelocityY=[];

x(1)=0; % meters

y(1)=.001; % meters

time(1)=0; % seconds

mass=.00247; %kg ping pong ball .00247 Kg

g=-9.8; % m/sec^2

c=0.0005; % coefficient of drag where Re is between 10^3 and 10^5

% so I can load an array for plotting

% start to increment the motion

index=1;

thisAngle=values_angle(i);

velx=vel*cos(thisAngle);

VelocityX(1)=velx;

vely=vel*sin(thisAngle);

VelocityY(1)=vely;

% set a time step

deltaTime=.001; % seconds

height=y(1);

flag=0;

velFinalX = 0;

velFinalY = 0;

%Don't see any issues here

while height>0 % check that the ball has not hit ground yet (1e-3 to speed things up, It hangs because it never leaves this line, check how height is calculated.)

index = index+1;

% *******************************************************

% break velocity into its components

if index == 2

velx = vel*cos(thisAngle);

vely = vel*sin(thisAngle);

else

velx = velFinalX;

vely = velFinalY;

end

% *******************************************************

% use an if/else statement to check to see if the ball is moving

% down (negative). If it is, then drag has an opposite sign

% as gravity in the acceleration formula. Otherwise gravity

% and drag have the same sign. Calculate the new acceleration in the y.

if vely < 0

adragy = g + (c*vely.^2)/mass;

velFinalY = vely + adragy.*deltaTime;

else

adragy = g - (c*vely.^2)/mass;

velFinalY = vely + adragy.*deltaTime;

end

% *******************************************************

% Now calculate the acceleration in the x .

adragx = (-c*velx.^2)/mass;

% *******************************************************

% *****************************************************

% calculate the new velocity at the end of the time step

% this will have X and Y components, so you need a variable

% for each. One is velFinalX and the other is velFinalY.

velFinalX = velx + adragx.*deltaTime;

% velFinalY = vely + adragy.*deltaTime;

% *******************************************************

% ******************************************************

% Get a new velocity vector and angle given the X and Y

% The velocity is the variable "vel" and angle is "angle"

vel = sqrt(velFinalX.^2 + velFinalY.^2);

angle = atan(velFinalY/velFinalX);

%*******************************************************

% now save my values at this time step

VelocityX(index)=velFinalX;

VelocityY(index)=velFinalY;

% and distance numbers

distX=VelocityX(index).*deltaTime;

distY=VelocityY(index).*deltaTime;

% save distance values

x(index)=x(index-1)+distX;

y(index)=y(index-1)+distY;

height=y(index);

time(index)=time(index-1)+deltaTime;

%lines 105-107 are good

if distY<0&&flag<=1

if height<.25

disp(distY)

fprintf('goal height detected at distance %.2f meters.',x(index));

flag =2;

LandingDistance(i)=x(index);

end

plot(x,y)

title('distance traveled by ping pong ball in meters')

xlabel('horizontal distance traveled (meters)')

ylabel('vertical distance traveled (meters)')

end

hold off

Explanation:

7 0

3 years ago