# Physical Education

Physical Education
Suppose that blood flows through the aorta with a speed of 0.35 m/s. The cross-sectional area of the aorta is 2.0x10-4 m2. (a) Find the volume flow rate of the blood (b) The aorta branches into tens of thousands of capillaries whose total cross-sectional area is about 0.28 m2...

Physical Education
A solid object floats on ethyl alcohol, with 68.2%of the object’s volume submerged .Find the density of the object. Take density of alcohol =806 kg/m

physical chemistry
The system N2O4 <--->2NO2 maintained in a closed vessel at 60º C & a pressure of 5 atm has an average (i.e. observed) molecular weight of 69, calculate Kp. At what pressure at the same temperature would the observed molecular weight be (230/3)

physical science
How to unscramble this word isarntucio

physical
A solid cylinder has a radius of 0.051 m and a height of 0.0030. The cylinder is composed of two different materials with mass densites of 1950 kg/m3. If each of the two materials occupies an equal volume, what is the mass of the cylinder?

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event. I believe it is the ...

LIFE ORIENTATION
LACK OF PHYSICAL FITNESS AND PROPER NUTRITION IN ADOLESCENT.DESCRIBE THE LIFESTYLE DISEASE.MENTION 5 FACTORS THAT CONTRIBUTE TO THE DISEASE.

physical scinsce
A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ...

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event. I believe it is the ...

life orientation
describe the lack of physical fitness and 5 factors that contribute to the disease?

physical science
if the maximum amount of water vapor in the air at 15 degrees c is 12.5 g/m^3, what is the actual amount of water vapor in the air if the relative humidity is 85.0%

Science
Please check my answers (at the bottom) with these questions. 1. An apple quickly changes color when exposed to air. This demonstrates a ________. (1 point) physical property chemical property physical change all of the above 2. When a chunk of dry ice is at room temperature, ...

Health
WITH STARS IS MY ANSWER! (*) 1) A drug created by a chemical reaction in some foods, especially fruits and grains A= neurons B= cirrhosis C= alcohol ****** D= depressant 2) Being drunk A= intoxicated ****** B= withdrawal C= alcohol D= minor 3) Cells that make up the nervous ...

Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck between a. Pressure is ...

Chemistry
For the following battery: Cd(s) | CdCl2(aq) || Cl–(aq) | Cl2(l) | C(s) (a) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) C(s) electrode:? (c) Calculate the mass of Cl2 consumed if the battery delivers ...

Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck between a. Pressure is ...

Physical Science
if a blue object is placed in front of the screen, what color will it be? explain the answer.

Physical Science
A car of mass 900 kg moves at 10 m/s. What is the braking required to stop the car in a time of 5 seconds

physical aspects
A 600 lb. oak packing crate is sitting on a cross grained, 14 ft long, oak ramp. The force of the box against the ramp is 520 lbs, and the downhill force on the box is 300 lbs. Will the box slide down the hill all by itself? Give the box a nudge, will it stop? If the box will ...

Physical Science
10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on any boundary causes ...

Physical Science
10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on any boundary causes ...

Physical Science
6. In order to turn 2 iron atoms into rust, 2 water molecules must be present. -False?

physical science
A nail is driven into a board to a depth of 1.00 cm with one strike from the hammer. The hammer striking the nail hit it with a force of 200.00 Newtons. How much work was done?

life oreination
5 factors that contribute to a lack of physical fitness and proper nutrition in the adolescent

Speech
Please rephrase the following sentences into a more simple manner. I need to give a presentation and i would like to write this out simpler. Thank you guys Research of soil erosion is difficult for several reasons, but particularly because soil erosion is an intermittent ...

physical science
If a sample emits 1000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 2 meters from the sample?

LANGUAGE ARTS UGRENT!!!
1. What's the fastest way to find out how many individual letters are quoted in the article? A: Count the number of photos in the article. B: Read the article. C: Count the heads and subtract the first head. D: Count the number of footnotes. 2. Where should you insert a colon ...

life orientation
Descrise the Factors that contribute to lack of physical fitness and proper nutrition in the adolescent

physical science
define earth station

History
Well I have been working on an essay for a couple days now about slavery, here it is: Slavery began in the 16th century, but ended in the 19th century. Slaves went through a lot of torture then, but some blacks now still deal with some of the problems the slaves had back then...

Physical Science
Four balls are taken to the top of a building. Ball 1 is dropped (zero initial velocity). Ball 2 is thrown straight up with a velocity of 3 m/s. Ball 3 is thrown straight out with a horizontal velocity of 3 m/s. Ball 4 is thrown straight down with a velocity of 3 m/s. Which ...

Physical Education
Is a drug a food?

physical sciences
plan,design and conduct an investigation to find out wether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn

physical science
The shape of water molecule is (A)tetrahedral (B)linear (C)angular (D)trigonal planar

Physical Science
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees the dart leave the ...

life orientation
Provise five or more ways in which you critically discuss how lack of physical fitness and proper nutrition impacts on a teenager?

English
To avoid speaking in monotone, a strategy to use can include: A. changing pitch and tone of voice. B. voice inflection. C. varying rate and pace of speaking. D. All of the above i'm confused betwen A & D 2. Which nonverbal consideration creates immediate impressions among your...

physics for physical science
(a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth. (b)find the magnitude of the acceleration of the satellite in such a grazing orbit. (c)...

physics for physical science
a bullet of mass 0.015kg strikes ballistic pendulum of mass 2.0kg .the center of mass of the pendulum rises a vertical distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.

physical science
plan,design and condact an investigation to find out whether the amount of heat produced will depend on an increase on the concentration of HCl when HCl reacts with an excess Zn.

Physical science
A ball is thrown up at 8m.s from the roof which is 60m high.it strikes the balcony below after 4s.the ball then bounces off the balcony and strikes the ground.ignore the effects of friction.calculate magnitude of the velocity at which the ball strike the balcony?

Science/DUE TODAY
please help!!! quick!!! How is a polar bear adapted to living in a desert? (behavioural and physical)!!! write something that is a good answer and that i can understand.

Health
What physical changes do individuals encounter at the first stage of stress (alarm)?

Physical Science
When will an object float on a fluid's surface? My answer: An object will float on a fluid's surface if only the object is less dense than the fluid?

Physical science
To investigate whether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn

Suppose a customer brings a gold bracelet to a jeweler and asks for it to be changed into a gold ring. Which of the following is true? (1 point) The physical property of color will be changed. The bracelet will go through a chemical change. The composition of the bracelet will...

SIcene
Three examples of physical change are ____. (1 point) boiling water, a nail rusting, and a melting candle a pond freezing, breaking glass, and a burning candle melting ice, mowing the lawn, and carving a statue applying lipstick, making lemonade, and baking bread

physical
During July 1995 the comet Shemaker-Levy 9 smashed into Jupiter in a spectacular fashion. The comet actually consisted of 21 distinct pieces, the largest of which had a mass of about 4x1012 kg and a speed of 6x104 m/s. Jupiter, the largest planet in the solar system , has a ...

physical education
why are all the pe teachers the ones that need to be the one in physical education so they could lose weight because they are the ones that are always fat and out of shape

Physical Science
When will an object float on a fluid's surface?

Physical Science
Why does pressure change with elevation and depth?

HEALTH
The key to using a pedometer to meet the Physical Activity Guidelines for Americans is to _________. A. First set a time goal and then calculate how rigorous the steps need to be each day to reach your goal B. First calculate how many steps are needed weekly and then match it ...

Physical Science
Why does pressure change with elevation and depth?

Science
1. Density is the relationship between ____. (1 point) mass and volume cubic centimeters and pounds weight and volume grams and mass 2. Which of the following is NOT a possible sign of a chemical change? (1 point) a change in state a change in color the release of a gas the ...

child development
Johnny is a 5-year-old kindergarten student starting school for the first time. What changes do you expect to see Johnny go through in the course of his first year of school? Be specific in your response, addressing changes in his physical, emotional, and cognitive domains. ...

BIO
3. Fish have a two chambered heart called a single loop. discuss the benefits and drawbacks of this system. 4. Amphibians have a three chambered heart. Discuss the importance of the extra chamber in terms of the obvious physical differences that amphibians like frogs have from...

Biology
Amphibians have a three chambered heart. Discuss the importance of the extra chamber in terms of the obvious physical differences that amphibians like frogs have from fish.

Life orientation
Ways in which the lack of physical fitness and proper nutrition impacts ön teens

Life orientation
What are the 5 factors contributing to the lack of physical fitness and proper nutrition in the adolescents

English
1. All three poems use sensory details in order to (1 point) celebrate team play. remind athletes of their role in inspiring society. show the beauty of mental concentration and physical prowess. 2. The word antagonize, often used in sports, means "to provoke hostility." The ...

Alan
Mark below all of the statments that correctly describe the physical properties of glass. Glasses do not have slip systems. Glasses consist of both covalent and ionic bonding. Glasses are brittle at room temperature. Glasses are amorphous and have no long range symmetry. The ...

physical chemistry
1000 ml of oxygen at ntp passed through siemens ozoniser when the resulting volume was 888 ml at ntp .quantity of ozonised oxygen is passed through excess of potassium iodide solution calculate weight of iodine liberated?

chemistry
Please mark below all of the statments that correctly describe the physical properties of glass. Glasses do not have slip systems. Glasses consist of both covalent and ionic bonding. Glasses are brittle at room temperature. Glasses are amorphous and have no long range symmetry...

1. Density is the relationship between ____. (1 point) mass and volume cubic centimeters and pounds weight and volume grams and mass 2. Which of the following is NOT a possible sign of a chemical change? (1 point) a change in state a change in color the release of a gas the ...

chemistry
Please mark below all of the statments that correctly describe the physical properties of glass. Glasses do not have slip systems.Glasses consist of both covalent and ionic bonding.Glasses are brittle at room temperature.Glasses are amorphous and have no long range symmetry....

child daycare
1. A _______-centered program is most helpful to the children served. A. family B. child C. school D. parent 2. The vision and goals of an afterschool program should be translated into a A. preprietorship. B. parent letter. C. newsletter. D. mission statement. 3. Which of the ...

physical geography
given the temperature of 27 degrees celsius on a climograph was is the averge monthly prepicipation 24.4 cm

physical science
How much energy is stored in a 9V battery rated at 10 A hour?

Physical Science
How does gravity help keep satellites in orbit?

Chemistry
1. Which of the following compounds is an unsaturated hydrocarbon? methane *propyne nonane methyl 2. The general name for hydrocarbons with at least one triple covalent bond is ____. alkenes alkyls alkanes *alkynes 3. What is the name of the smallest alkyne? butyne *ethyne ...

physical science
What is the density of a suitcase that has a mass of 25 g and a volume of 13 cm3? Formula: Density = Mass/Volume

1. Which of the following compounds is an unsaturated hydrocarbon? methane *propyne nonane methyl 2. The general name for hydrocarbons with at least one triple covalent bond is ____. alkenes alkyls alkanes *alkynes 3. What is the name of the smallest alkyne? butyne *ethyne ...

physics
Your written homework will be graded entirely on the clarity and completeness of your derivation. No credit will be awarded for a final answer without a derivation. As usual, simplify your final answers as much as possible. A giant Pez dispenser of mass m rests on a ladder of ...

Chemisry
Please mark below all of the statments that correctly describe the physical properties of glass: 1.Glasses do not have slip systems. 2.Glasses consist of both covalent and ionic bonding. 3.Glasses are brittle at room temperature. 4.Glasses are amorphous and have no long range ...

chemistry
Please mark below all of the statments that correctly describe the physical properties of glass. a)Glasses do not have slip systems. b)Glasses consist of both covalent and ionic bonding. c)Glasses are brittle at room temperature. d)Glasses are amorphous and have no long range ...

Child day care management
1. At what age does exercise begin to result in strength in boys and girls? A. Between ages one and two B. Between ages three and four C. Between ages five and six D. Between ages six and seven 2. Athlete’s foot is an infection caused by A. dirt. C. allergic reaction. B. ...

LIVING A HEALTHY LIFE
1. At what age does exercise begin to result in strength in boys and girls? A. Between ages one and two B. Between ages three and four C. Between ages five and six D. Between ages six and seven 2. Athlete’s foot is an infection caused by A. dirt. C. allergic reaction. B. ...

1. Which of the following is an example of density? (1 point) ice floating on top of a river convection currents that cause wind oil spill cleanup all of the above 2. What type of property is density? (1 point) chemical property size-independent physical property all of the ...

Social Studies
1.What is a savanna? A savanna is a tropical or subtropical woodland ecosystem 2.What would you expect to find if you visited a savanna in Africa? Animals,grass,trees,plants 3.Why do you think so many animals live on a savanna? There's more grass and water and a place to graze...

Physical geography
what is the fractional scale of oregon? and how do you figure it out. Thanks

Physical science
According to the law of the conservatives of mass, if the products o a reaction have a mass of 64.0 g, then the total mass of the reactants:

physical science
The orbital velocity of an earth satellite in an orbit 400 mi above the earth?

physical science chemistry
calculate the mass of sodium nitrate needed to make 550 ml of solution of concentration 0;2 mol.dmc to the power of minus 3

World Geography
1.The physical feature of Western Europe where most major cities are found is called A. the plains. B. the glacier.<<<<<<< C. the tundra. D. the taiga 2.The Magna Carta was the first step toward England’s ______________. A. large cities B. war with ...

physical
STATE 4 facts and fallacies abt the effect of sports participation on women reproduction

physical science
two cars 200meters apart drive towards one another. If one car travels at 12 meters/s and the other at 26 meters/s how long does it take for them to collide?

physical science
A builder pushes a wheelbarrow loaded with sand ,from rest at point A,up a ramp of unknown length ,which is inclined at unknown angle ,vertical height of unknown 2,75m

physical science
Plan,design and conduct investigation to find out whether the amount of gas produced will depend on the increase on the concentration of HCl when it reacts with an excess Zn

World Geography
REVIEW 1.What type of information does a physical map show? A. Natural features<<<<<<< B. Countries or states C. Location of human features D. Distribution of human and physical features 2.In recent years, millions of Chinese workers have moved from ...

World Geography
REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s surface. C. These ...

physical geography
in the northern hemisphere the weather map showing isobars and the positions of cold and warm fronts

siyamkela
ways in which you critically discuss the impact of the lack of physical fitness and proper nutrition in the adolescent,on the teenager

physical
Rank the following 3 classes of materials in order of increasing typical Young's Modulus: metals such as copper, plastics such as HDPE (high density polyethelene), and ceramics such as alumina (Al2O3). Do not look up the values of Young's Modulus, instead base your answer on ...

public speaking
1. A speaker talking about the benefits of cosmetic surgery to an audience primarily of women is appealing to which level of needs in Maslow’s Hierarchy of Needs? A. Physiological needs B. Esteem needs C. Belongingness and love D. Safety needs.. is it B 2. Physical context ...

physical science 2nd semester
what is the reactant in this equation ?2HBr(aq)+ca(OH)2(aq)-->2H2O(i)+CaBr2​(aq)

science
What are 4 examples of physical systems designed by people?

electronic,physical,science
A circuit that combines two or more signals is called a mixer. In this lab, your goal is to build a mixer that combines the signals generated by two voltage sources, V1 and V2, where: V1 is a 1 kHz square wave that varies between 0V and +1V, and V2 is a 5 kHz sine wave that ...