A = πr2 = π X 0.00782 = 1.9113 x 10-4 m2
speed = 0.61 m
volume filled in time t = 0.61 x 1.9113 x 10-4 xt = 0.0189
t = 162.10 s so ans. i s (C) 160 s
A water faucet in a house is h=8 m below the water surface in the local water tower. The radius of the orifice in the fully opened faucet is r=0.01 m. We assume non-viscous flow in this problem. How long does it take to fill a 20 liter bucket with water using this faucet????
Marko and Daniel have worked up a sweat playing fortnite. They both decide to take a quick break and grab a glass of water with some ice in t. Marko's mum does not like how much fortnite the boys play so she decides to play a joke on her son. She fills one cup with fresh water of density p 1000 kg/m3 and another identical cup with salt water of density p 1029 kg/m3, the latter of which is intended...
NI. A stone is thrown vertically upward with a st of 125m from the edee of a dla 750m high thig 2- 49 (a) How much later does it reach the bottom of the clhff? (b) What is its speed just hefore hitting (c) What total distance did it travel? -75m FIGURE 2-49 Problem N 2-7 Freely Falling Objects Neglect air resistance . (1) A stone is dropped from the top of a chEl It is seen to hit 49....
is attached to a string and rotated in a vertical circle of radius 04 m with constant speed of 12 m/s. Calculate the tension of the bottom of the circle. string at the top and the (b) Moon is revolving around the earth once every 28 days. Determine its angular speed in rad/s. O If the distance between earth and the moon is 3.8 x 10 m, determine the mass of the earth. 6. A 0.2 kg ball is sliding...
I asked this before, but the
other person got the wrong answer. I tried to solve what they did
wrong to get my answers correct, but to no avail. Please help
me.
(10%) Problem 9: A certain pond absorbs I 910 WIm for a time period of an hour from the sun. Assume that all of this energy is used to raise the temperature of the pond. The pond water fills a hemisphere of radius r 1.75 m and has...
Can someone please work these step-by-step. I have the
answers but needing to know how to work them.
5. A hammer is dropped from the top of a tower that is 400 m high. If we neglect air resistance so that the only force on the hammer is gravity, with what velocity does the hammer strike the ground? 6. A cowboy shoots a bullet straight up into the air with an initial speed of 800 m/s. If the bullet is...
So
I know there is 4 different equationsfor kinematics. Can you pick
the problems that use each one and write out how you do it?
Especially 6 and 10 because those seem very hard.
1-D Kinematics Practice PHYS&114 Name: 1. A car starting from rest travels 231 m with a constant acceleration of 1.05 3. What is its 2. How far does a train travel while its velocity changes from +102 to +45.0 등 in 22.0 seconds? 3. You sprint...
The professor didn't make an answer key for this study guide and I wanted to know if I'm doing these right. 4. A man pushes with a force of 700 N on a broken down car at an angle of 0 degrees from horizontal. He manages to move it form to a garage. How much energy does he use? 5. A block sits on a horizontal surface with friction. The mass of the block is kg. A force of 14Nis...
This is all the information I have. Any Help would be
appreciated.
Titration of an Antacid (i.e., an anti-acid, in other words a base) Part A Procedure: 1. To a beaker of appropriate size add 190 mL of distilled water. Afterwards, using your 10 mL graduated cylinder, add 10 mL of 4 M HCl (hydrochloric acid) stock solution (CAUTION - STRONG ACID-CORROSIVE!) to the 190 mL of distilled water. Mix the solution well. Using a Rainin pipet, carefully pipet 10.000...
i really need help with the graphs
Driving Can Be Dangerous to Your Health: An Interrupted Case Study in Physiology Phil Stephens Department of Biology Villanova University Part 1-The Grandparents Arrive Dave pulled the cell phone out of his pocket, cursing himself for not putting it on vibrate. The children, Jason and Laura, were both asleep, and he knew that the rest of the day would not be fun if they were awakened from their naps. "Hi, Dave. We're just...