# Homework Help: Health: Physical Fitness

## Recent Homework Questions About Physical Fitness

physical science
How many minutes would be required for a 310.0 W immersion heater to heat 202.0 g of water from 22.0°C to 95.6°C?

Physical Science
MH = 16.32 g/kg SH = 9.86 g/kg Air mass temperature = 15° C (59° F) What is the Relative humidity & the approximate Dew-point temperature? How do i set this problem up? I do not understand. Thanks

physical science
A uniform stripe of eureka (resistivity 5-0 × 〖10〗^(-7) Ωm) has a resistance of 0.80 Ω per metre and is 0.25 cm wide. What is its thickness? (show work)

physical science
A block of carbon, 1.0 cm by 2.0 cm by 5.0 cm has a resistance of 0.80 Ω between its two smaller faces. What is the resistivity of carbon? (show work)

physical science
. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × 〖10〗^(-8) Ω m, find the least diameter of a copper cable that could be used (show work)

physical science
What length of German silver wire, diameter 0.050 cm, is needed to make a 28 Ωresistor, if the resistivity of German silver is 2.2 × 〖10〗^(-7) Ω m (show work)

physical science
The resistance of the ohm is very approximately that of a column of mercury 1.06 m long and of uniform cross-section of one hundred of a cm^2. Find the resistivity of mercury.(show work)

physical science
Taking the resistivity of platinoid as 3.3 × 〖10〗^(-7) Ω m, find the resistance of 7.0 of platinoid wire of average diameter 0.14 cm.

physical science
The heating elements of an electric toaster is typically made of nichrome wire (an alloy of nickel and chromium). As current passes through the wires, the wires heat up, thus toasting the toast. Estimate the overall resistance of a heating element which is 220 cm long and ...

Physical sciences
One use of nitrolim

Social Studies
Which physical feature covers most of arabia? A) The Empty Quarter?** B) The Fertile Crescent? C) The Zagros Mountains? D) The Persian Golf? i think it might be A? but I'm not sure, if you could just check this out that'd be great =)

physical science
A 15kg piece of mass suspended from a hook in the ceiling is pulled aside by a horizontal string until the supporting string makes an angle of 30 with the vertical .draw a vector diagram showing all the force acting on the piece of mass

Physical Science
A delivery man pushes the button to ring the doorbell. Which of the following forms of energy is not involved in this process? electrical sound mechanical gravitational my answer is gravitational

Physical Science
An elephant drags a tree trunk along a rough horizontal surface by means of an attached rope which makes an angle of 30° with the horizontal. The force in the rope is 4 000N. CALCULATE the horizontal component of the force exerted by the rope on the tree trunk

Physical Science
Like water, hydrogen fluoride, HF, and ammonia, NH3, have relatively high boiling points. Explain. A.The polar molecules of each of these materials have relatively strong attractions for themselves, which translates to relatively high boiling points. B. Since these molecules ...

Physical Science
If an element has a +1 positive charge and the following chemical symbol, how many electrons does it have? 17 on top, 6 on bottom, Oxygen (O) A. 7 B. 17 C. 5 D. 18

Physical Science
Why is metal shiny? A. The electrons absorb each light wave. B. The loose electrons reflect most wavelengths of light. C. The electrons emit light due to electronic excitation. D. The electrons transmit most wavelengths of light. (I think the answer is B, but I am not positive)

Honors Physical science
Lesson 13 force and motion unit test. I need 1-62

Science
What effect does observing a substance's physical properties have on the substance?

Science
1) If you let all of the liquid evaporate out of the pitcher, would you be able to see the solid particles of the drink mix? Explain. 2)Compare what happens when a geyser erupts to what happens when a tea kettle whistles. 3)Name something made of aluminum and explain why ...

Effective Learning Environment
Alea is developing a classroom for the infants she cares for who are ages six weeks through eight months. Which of the following centers would be appropriate to include? A. A physical center with pull-up railing B. A doll center C. An art center with watercolor paints D. A ...

physical science
Luster Malleable Ductile Conductor Solid at room temperature Which element could be described by the list of properties above?

Physical Science
A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0° below the horizontal is applied to the box. What is the minimum coefficient of static friction between the box and the surface required for the box to remain stationary? 1) 0.441 2...

9th grade physical science
the density of copper is 8.92g/cm^3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?

Physical Ed
Could you help me with this please? 1. Telling a child that he won't amount to anything in life is a form of A. neglect B. emotional abuse (My answer) c. physical abuse d. sexual abuse

1. When reading a recipe's ingredients, which substance makes the recipe an unhealthy choice if it is present in a high amount? A. Fiber B. Protein C. Trans fat*** D. Unsaturated fat 2. Of the five food groups, which one should be consumed in the smallest amount? A. Dairy*** B...

physical educatioin
Your target heart rate _____.

physical science
two forces of 60 and 80 newton respectively act simultaneously at the point ...sketch and determine their resultant force using tail to tail method and tail to tail method

physical science
Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...

physical science
Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...

physical science
If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. which of Newton’s laws is this an example of? Explain how you know please. i know it's not the 3rd law.

Physical sci
The Density of aluminum is 2.70 g/cm3. What volume does 2000 g occupy?

Physical Education
5. Select the answer below that best describes how you can increase the intensity of your workout. (1 point) A. exercise more often B. increase the speed of a run, amount of weight lifted, or distance a muscle is stretched C. Increase the length of time of each training ...

Dating with Radioactivity HELP!!!
1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic past. This statement...

P.E (Physical Education
what would be a good way to improve your own health and the health of others within the school community?

Physical Sciences
Is a diamond a pure substance, homogeneous or heterogeneous mixture?

1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic past. This statement ...

physical science
How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?

Check my answers, Physical science
my answer has the **** 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom***** c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point) a. Nucleus b. Neutron c. Proton d. Electron*** 3. Who provided the first evidence ...

Physical Science
Rank from largest to smallest atomic radius. To rank items as equivalent, overlap them. O, S, Se, Po, Te

Spanish
Which popular physical activity in the Spanish-speaking world would you prefer to participate in? Why? Write you answer using as many Spanish words as possible. What are some Spanish-speaking world activities?

ELA
Jarren's training and improved diet give him ______ Which of these best completes the sentence to express the idea that Jarren is in peak physical condition? 1. (vigor) 2. ambition 3. muscle 4. fatigue Ms.Sue is this right

physical science
Two forces of 60N and 80N act a point .sketch a tail to head diagram and determine their resultant

AP Chemistry Help!!
When you light a candle, the paraffin wax soon begins to melt. Paraffin wax is a covalent compound. Can you classify the melting of the wax as a chemical change or a physical change? If so, which is it? If you cannot classify it as chemical or physical, explain why not. ...

children's literature
Creativity supports problem solving in children and is what type of activity? A. Cognitive activity B. Physical activity C. Social activity D. Emotional activity D?

physical science
in a tug of war the left team pulls with a force of 300N and the right team pulls with a force of 150N. what is the resultant force?

Physical science
Explain whether the size of an object’s displacement could be greater than the distance the object travels.

PE
What is an example of flight path of projectile force and range? Explain from start to finish, the flight path of a projectile in the physical activity you chose.

Physical Science.
I need help answering this inferring question because I don't fully understand it. Q: Infer whether the size of an object's displacement could be greater than the distance the object travels.

Maths, Accounting, Life Orientation, Life Science, Physical Science, English and my home language (sepedi)
Could I become a social worker with those subjects?

Language Arts
I am doing an essay question, and I just wondered if someone would answer a simple question, of wether they think that the story "Marriage is a private affair" shows external conflict. I beleive it does because external conflict is physical, and comes from other sources, and ...

health and physical education
Using the excitement of violence to keep video games users to playing their games is an example of which risk factor? A. poverty B. family violence C. media violence D. availability of weapons

Science, pls help Ms. Sue!!!!!!!
an electric current is passed through water in the process of electrolysis two gases are formed one has a boiling point of -183 C and the other one has a boiling point of -253 has a chemical or physical change ocured

Chemistry
Label the following changes as CHEMICAL or PHYSICAL change 1. Fat reacting with sodium hydroxide 2. Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water Label the following reactions as exothermic or endothermic 1. Ammonium ...

Science
Fat reacting with sodium hydroxide Is this a chemical or physical change My answer is chemical is this right answer Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water. My answer is physical change. Is this right?

Physical Science
A step-up transformer has primary coil with 15 turns. How many turns would be required in the secondary coil to increase the voltage from 60 v to 160 v? 15 x=160/80 x=80/15 x=?

Physical Science
Question: Suppose you have sunlight shining on two clear containers of water on a table. Light waves refract through one of the containers but diffract around the other container. Describe how the two containers are different. (I have to write three lines, it's not a lot) ...

Physical science
two forces of 5N and 12N respectively act on the same point.show how you would determine the magnitude of the resultant by using the tail to head and tail to tail methods and Pythagoras theorem

Health
1. To eat more healthful and decrease your calorie intake, MyPlate recommends that you eat breakfast, lunch, and dinner with no snacks in between meals. eliminate starchy vegetables like potatoes, corn, and lima beans that are high in carbohydrates. drink fruit juice for extra...

Physical Science
If element X has 81 protons, how many electrons does it have?

Physical science
the crest of wave A has an amplitude of 5 cm. the trough of wave B has an amplitude of 2 cm. if the crest of wave A combines with the trough of wave B,what will be the amplitude of the resulting wave? will the waves form a crest or a trough when they combine?

Health and Physical Education
1. When you wake up and a large pimple greets you when you look into the mirror, this endocrine gland is to blame. thymus gland reproductive gland (my answer) thyroid gland pancreas

science questions please answer at least 45minutes
1. The current atomic model would be revised if (1 point) better microscopes were being used to study its structure. better microscopes are invented in the future. new information about an atom’s structure is discovered. a new element is discovered in the future. 2. Melinda...

Physical science
Determine the centripetal acceleration of an automobile making a tight turn that has a radius of 256 m, if the is traveling at a velocity of 25.0 m/s as it turns.

Physical science
What was Jack's speed from 5 sec to 10 sec

geo
Hi... I need some URGENT help with my geography essay, I'm suppose to have three reasons to why canada is the best country and I'm looking for a 3 strong arguments ... i have 2 already down , economy and physical geography . I need to have 11 paragraphs in total. so that means...

physical science
How much heat is absorbed by a 70g iron skillet when its temperature rises from 24oC to 110oC? joules

physical science
A pendulum has 501 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom of its swing? joules

physical science
What is the speed of a bobsled whose distance-time graph indicates that it traveled 107m in 26s?

science
if there was a source of pollution in Smithtown bay, what role could a physical oceanographer play in understanding the impacts to other parts of long island sound?

Physical Science
Sodium (Na) reacts with chlorine gas (Cl2) to form sodium chloride (NaCl) as shown in the equation 2Na+Cl2=2nacl If 4 moles of sodium react, how many moles of chlorine gas will react? I have no idea what to do.......... I need some assistance thanks

PHYSICAL CHMISTRY
A sample of methane gas of mass 35 g at 250 K and 12.5 atm expands isothermally until its pressure is 1.5 atm. Determine the change in entropy of the gas.

Physical science
If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?

physical science
The gas in a cylinder has a volume of 3 liters at a pressure of 106 kPa. The pressure of the gas is increased to 208 kPa. Assuming the temperature remains constant, what would the new volume be? = ....L?

physical science
If the mass of a material is 99 grams and the volume of the material is 22 cm3, what would the density of the material be? (in g/cm3) i don't know how to find the answer.

9th grade physical science
I'm really confused on how to do this, Can someone help walk me through? An object is placed in front of a concave mirror as shown in the diagram below. A. Draw at least two rays that demonstrate how this mirror produces an image. (4 points) Image B. Describe the image formed ...

Science
1) What physical features do producers and consumers have to help them survive in their environment

Philosophy
There are a variety of major distinctions that people always use to describe the Plato's Republic section we have read. The distinctions are: -The appearances vs.reality, -One vs. the many, - Forms/ideals vs. physical objects. After doing the reading, describe how you ...

Math
Using his driver on the 7th tee, Chris hits an excellent shot, right down the middle of the fairway. The ball follows the parabolic path shown in the figure, described by the quadratic function: h(x)=0.5x-0.002x^2. This relates the height, h, of the ball above the ground to ...

English
The scarlet letter "dark and abundant hair, so glossy that it threw off the sunshine with a gleam" "her beauty shone out, and made a halo of the misfortune and ignominy in which she was enveloped." Fine at least 2 phrases that describe the physical nature of Hester prynne. For...

Social Studies
Could you help me with these questions? 1. Which statement best explains the significance of the signing of the Mayflower Compact? * 2. What was a major reason for the colonization of the Americas by Europeans? * 3. Which reason led to the establishment of colonies in both ...

English
What are some personality and physical characteristics of coyotes?

Science
What is When digital information is superimposed on a physical environment (two words)

Science
What is When digital information is superimposed on a physical environment (two words)

PHYS-041-Keiler: Physical Science
A prehistoric bone is found at an excavation site. If the bone originally contained 22 kg of carbon−14, how much would remain after 11,400 years?

physical education
what are the reason for the olympic games to be largest of all sporting events

history
1. Which statement best explains the significance of the signing of the Mayflower Compact? * 5 points A)The colonists swore to survive together or die in North America. B)The colonists agreed to create their own government and to obey its rules. C)The colonists declared their ...

Physical Science
How much energy is released when 10 gm of steam at 100 degree Celsius turns to ice at 0 degree Celsius

Physical Science
A 68.4-g sample of potassium chloride was added to 200.0 g of water at 20 C. Is the solution saturated, unsaturated, or supersaturated?

Physical Science
When iron metal reacts with oxygen, the reaction can form Fe203. The balanced chemical equation I think is right is 4 Fe + 302----2Fe203. So I have 4 moles of iron + 3 moles of oxygen creates 2 moles of iron oxide. I need to find the number of moles of oxygen that are needed ...

Physical Science
Materials: Epsom salts (MgSO4), ammonia (NH4OH) small jar or cup measuring cup Procedures 1. Dissolve 1 teaspoon of Epsom salts in a half cup of water. 2. Add 2 teaspoons of ammonia to the Epsom salts solution and stir thoroughly. Record your observations. 3. Allow the mixture...

physics multiple choice MCQ 1- i need help please @all respective sir & bro
which of the following variable controls the physical properties of a perfect gas? a. pressure b. temperature c. volume d. all of the above e. atomic mass

Physical science
A 100.0g sample of water at 20.0C is heated to steam at 125.0c.how many heat was absorbed?

Physical chemistry
Find ΔG and ΔA for the freezing of 1.00 mol of H20 at 0°c and 1atm. At 0 ° C and 1 atm the density of ice and liquid water are 0.917 g / mL and 1 g / mL, respectively.

Physics
A certain number of identical resistors are connected in series and their total resistance is measured. When the resistors are disconnected and re-connected in parallel, their total resistance drops to one-percent of the value measured when they were connected in series. How ...

Physical Science
How much Cerium sulfate is needed to make a saturated solution in 100mL of water at 30 degrees Celsius?

physical science
4.8g of magnesium react was completely burned in oxygen and magnesiumoxide was produced. what is the mass of magnesium produced?

Physical geography
Identify the glacial term that corresponds to each of the following. I'm stuck on these two. Thanks for the help Melting by wind: Sudden massive melting:

Health
3. Which is not a health professional who treats mental and emotional disorders? A psychiatrist B neurologist C social worker D psychologist 4. Arachnophobia, the fear of spiders, is an example of a(n) A. Personally disorder B. Anxiety disorder C. Mood disorder D. Impulse-...

Physical Educationcal Educationcal
What is the role of 1mile running? ( like important things, teaching points ) I need to find for P.E. class.. Please introduce me some good websites