Monday

February 27, 2017
Number of results: 58,476

**music**

has anyone ever heard of Alexz Johnson? she is a canadian atrist who stars on the CTVshow instant star. Thank you for using the Jiskha Homework Help Forum. Here is one site: http://en.wikipedia.org/wiki/Alexz_Johnson P.S. And here is her Web: http://alexz-johnson.net/

*January 25, 2007 by schoolgirl12 ;)*

**Chemistry**

Predict the order of increasing vapor pressure (at a given temperature) for the following compounds: FCH2CH2F and FCH2CH2OH and HOCH2CH2OH. Explain your decision briefly. ANSWER: I suppose the order is FCH2CH2F and FCH2CH2OH and HOCH2CH2OH (increasing from left to right)...

*June 11, 2007 by Master Le*

**CHEM QUICK HELP**

Which of the following are correct statements? (Could be as many as 4) 1. Standard pressure is 101.3 atmospheres 2. One mole of gas contains 22.4 representative particles 3. One mole of gas always occupies 22.4 liters regardless of other conditions 4. Solids can always be ...

*April 11, 2013 by emily*

**pre calc, also forget my previous question**

so at sea lvl pressure is 14.7. EVERY 30 FT DESCENT ITS INCREASES BY 14.7 PSI MORE. what is the pressure at 1000ft. my question is what would be the first term 14.7 or 29.4. AS 14.7 would be the 0 term. term 1 would be 29.4 as its 30 ft below. sea lvl would be at zero right, ...

*February 14, 2016 by ISOSMEXY*

**Find force**

Find force in the strut: Wall is 20 ft high. Strut begins 4 ft lower, so the "altitude" of strut is 16 ft. "Base" of strut from wall to end of strut = 8 ft. strut is 12 ft on center There is a wind force against wall = 20 lb/ft ^2 Teacher said find wind force: w = (12 ft)(20 ...

*April 2, 2014 by Please Need Help*

**chemistry**

Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container? you may assume the ...

*December 5, 2011 by Fajer*

**chemistry**

Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container? you may assume the ...

*December 5, 2011 by Fajer*

**Science ( Need help really bad Please!)**

An object's weight is dependent upon its location in the universe. Why is this true? A. This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies. B. ...

*February 13, 2014 by Julie*

**physics**

A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ...

*October 6, 2011 by Ashley*

**Physics**

A coin is tossed into the air with an initial speed of 8.00 m/s. In the absence of air resistance, how high does the coin go above its point of release It rises a distance h such that the potential energy gain (m g h) equals the initial kinetic energy loss ((1/2) m v^2 ). ...

*January 4, 2007 by Anonymous*

**englih**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

*May 7, 2009 by john browm*

**Mechanics & hydromechanics**

A block of wood is pulled along a Horizontal table by a force of 33 N inclined at 30 degrees above the Horizontal.Find the vertical and horizontal components of the force.

*January 14, 2013 by joe*

**Physics**

A 2.8 kg block is pushed a distance D = 9.8 meters at a constant velocity by a force F = 46 N at an angle A = 30. It takes 8.1 seconds to move the block. Friction can be ignored. What is the work done on the block by the force?

*March 4, 2015 by Tevin*

**english**

I was wondering if I did this correctly too. 1. Student’s Sentence: Two years ago, about 150,000 acres of Colorado aspen had been killed by what scientists deemed “sudden aspen decline,” also known as SAD (Nijhuis 26). corrected 1- students sentence " By 2006, close to ...

*September 7, 2011 by mary*

**AP Chemistry**

These are some lab questions from the following lab: Vapor Pressure and Enthalpy of Vaporization of Water 1. Why does vapor pressure change with temperature? 2. The assumption was made that the vapor pressure of water is negligible at a temperature close to zero. Find the ...

*January 28, 2007 by anonymous*

**physics**

Three people attempt to hold a heavy sign in place. Abby pulls directly upwards (in the middle) with 140 N of force. Joe is ob Abby's left and pulls at a 30.0° to Abby's rope with a force of 180 N. Henry is on Abby's right and pulls at a 30.0° to Abby's rope with a force of ...

*November 8, 2015 by Heather*

**English**

I used your synonym link. I included the words I found in parentheses. Can you check if they are appropriate, please? Thank you. ) The festival is held in Park City, Utah and represents one of the world’s premier showcases (synonym: main settings?) for new, independently ...

*September 10, 2011 by Henry2*

**Physics help please****

A water pipe having a 2.1 cm inside diameter carries water into the basement of a house at a speed of 0.88 m/s and a pressure of 169 kPa. The pipe tapers to 1.0 cm and rises to the second floor 7.1 m above the input point. (a) What is the speed at the second floor? ? m/s (b) ...

*November 24, 2008 by kelsey*

**physics**

captain iplanet measures the magnetic forces on a proton which is vertically falling at 1996 m/s at the equator (take the earth's field to be .4 Gauss horizontal and pointing northward). what force would she measure? Give both force and direction.

*March 9, 2012 by fatih*

**physics**

A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude 10 v/m and a uniform magnetic field of magnitude 10^-2 T. The electric and magnetic fields are parallel and are in the z-direction. In the following ...

*May 14, 2011 by Sandhya*

**physics**

A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude 10 v/m and a uniform magnetic field of magnitude 10^-2 T. The electric and magnetic fields are parallel and are in the z-direction. In the following ...

*May 15, 2011 by Sandhya*

**physics**

A 5.3-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of θ = 30° with the horizontal, as shown in the figure below. If the coefficient of kinetic friction between block and wall is 0.30, determine the...

*February 27, 2016 by sherry*

**English**

I am stuck on this, please help! What type of fallacy is this sentence.. The Golden Gate Bridge in San Francisco ought to be closed down. After all, just look at all the suicides that have occurred there. I have looked several times, but cant seem to make a decision!

*September 30, 2010 by Sarah*

**math-IS MY ANSWER RIGHT?**

Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the cone z = sqrt(x2 + y2) ...

*November 23, 2016 by Anon*

**PHYSICS**

an open tube is .86m long. Find the fundamental frequency and frequency of the next harmonic if the Temp=10deg celcius also if you closed one end of the tube what would the new fundamental frequency be?

*March 24, 2008 by shan*

**Macroeconomics**

Suppose GDP is $800 billion, taxes are $150 billion, private saving is $50 billion and public saving is $20 billion. Assuming this economy is closed, calculate consumption, government purchases, national saving and investment.

*February 14, 2013 by Jess*

**College Physics**

A 22 μF capacitor and a 5.20 mH inductor are connected in series with an open switch. The capacitor is initially charged to 6.70 μC. What is the angular frequency of the charge oscillations in the capacitor after the switch is closed? W = _____ rad/s

*March 13, 2013 by Anonymous*

**Physics**

Which conditions will result in the smallest change in momentum? a. a large force over a long time period b. a large force over a short time period c. a small force over a long time period d. a small force over a short time period

*December 9, 2011 by HELP*

**physics**

A ladder rests against a smooth wall (by smooth wall, we mean that the wall exerts in the ladder only a force that is perpendicular to the wall. There is no friction force). The ladder weighs 200N and its center of gravity is 0.4L from the base, where L is the ladder’s ...

*May 17, 2016 by Chansa*

**Physics**

If a young girl is in a truck that is rolling down a hill with a force of 8765 N, what force must the brakes apply on the truck to have the truck roll at a constant speed? Would she have to apply more than 8765 N or less than 8765 N to get the truck to stop? My thoughts are, ...

*November 19, 2006 by Becca*

**Logic**

If I move to Texas, I will need air conditioning. I don't need air conditioning. So I didn't move to Texas" is an argument form known as (Points : 1) modus ponens. modus spumoni. modus operandi. modus tollens.

*September 11, 2011 by SW*

**Physics**

A sports car of mass 1400 kg (including the driver) crosses the rounded top of a hill (radius = 93 m) at 27 m/s. 1) Determine the normal force exerted by the road on the car. 2) Determine the normal force exerted by the car on the 75 kg driver. 3) Determine the car speed at ...

*December 3, 2009 by Anonymous*

**Physics**

A sports car of mass 1400 kg (including the driver) crosses the rounded top of a hill (radius = 93 m) at 27 m/s. 1) Determine the normal force exerted by the road on the car. 2) Determine the normal force exerted by the car on the 75 kg driver. 3) Determine the car speed at ...

*December 5, 2009 by Anonymous*

**Re: Physics/Math**

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further Reading * Physics/Math - ...

*March 2, 2007 by Technoboi11*

**Physics**

Three huskies are pulling a dog sled. The mass of the driver, sled and supplies is 145 kg. Snowy is pulling with a force of 83 N and 15.5degrees to the left of forward. Buster is pulling with a force of 75 N at 9degrees right of forward and Prince is pulling with a force of ...

*March 11, 2012 by Danielle*

**Statics**

If both the projection Pa and component Fb of the force F are 250 N, determine the magnitude of the resultant F and the orientation theta of the b-axis. There is a 34 degree angle from the resultant force to the a-axis. There is a 4 degree angle from the resultant force to the...

*August 27, 2015 by Jared*

**math**

length______ width 14 height 11 surface area_______ volume 2029.72 length*width*height gives you volume, which you know. But you can solve for length.

*June 12, 2007 by skye*

**Math 11 Surface area, Volume and Capacity**

A cylindrical tin can has a radius of 4.5cm and a height of 5 cm (a)What is the surface area of the can (b)What is its volume? (c)What is the cans capacity

*February 28, 2012 by Montel*

**Volume and Surface Area**

Find the exact surface area and volume of a right square pyramid with a radius of 2 inches and a height of 6 inches.

*May 13, 2012 by Billy*

**science**

A worker drags a crate across a factory floor by pulling on a rope tiedto the crate. The worker exerts a force of 450 N on the rope, which is inclined at 38 degrees to the horizontal and the floor exerts a horizontal force of 125 N that opposes the motion. Calculate the ...

*November 12, 2006 by Chris*

**Geometry and Measurement**

Anna builds a rectangular prism storage container with dimensions of 8 inches by 6 inches by 12 inches. She builds a second container with a greater volume by increasing the dimensions of the rectangular prism to 16 inches by 12 inches by 24 inches. How will the volume of the ...

*February 6, 2013 by dave*

**Algebra**

Having some trouble graphing this y = 3 - x for x less then or equal to 1 y = 2x for x greater than one how do I indicate that for the first part (1, 2) there would be a closed point at that cordinate but for the second part an open point at those same exact cordinates how do ...

*July 27, 2010 by Kate*

**english**

If you have read rkki-tikki-tavi Then you can help me . 1.How dose the first meeting between Rikki and the cobras make u want to read further ? 2.Which battle occurs at the climax? 3.How dose the story end ? How are the loose ends tied up and the story closed ?

*September 16, 2010 by lily S.*

**math**

a closed rectangular tank 180cm height, 300cm long and 200cm wide is made of metal sheet which costs 850 naira per square meter. calculate the cost of metal sheet used in making the tank

*January 15, 2016 by NAFISAT*

**Physics**

1. A kid was tobogganing but the warm sun melted the snow and he must now pull his 10kg toboggan on the muddy slope (coefficient of kinetic friction is 0.3, the bottom of the hill is 10 degrees). He pulls with a force of 30N. The parallel force applied is 20cos30. At what rate...

*April 1, 2008 by Alex*

**Calculus**

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.040000 cm thick to a hemispherical dome with a diameter of 60.000 meters

*November 11, 2009 by Salman*

**Calculus**

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.100000 cm thick to a hemispherical dome with a diameter of 75.000 meters.

*November 15, 2009 by rimmel*

**Calculus**

Use linear approximation or differentials to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.010000cm thick to a hemispherical dome with a diameter of 75.000meters.

*October 18, 2011 by Tenylob*

**math-calculus**

A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?

*December 17, 2012 by Mel*

**Math**

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.020000 cm thick to a hemispherical dome with a diameter of 40.000 meters. How do I do this?

*March 1, 2013 by jonh*

**Calculus Homework**

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.01cm thick to a hemispherical dome with a radius of 18 meters.

*October 15, 2013 by Holly*

**Chemistry**

An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 3.13Å , and the density of the crystal is 7.78g/cm3. Calculate the atomic weight of the element. Please help, thanks

*September 14, 2014 by Joe*

**ap chem**

A certain volume of a .50 M solution contains 4.5g of a certain salt. What mass of the salt is present in the same volume of a 2.5 M solution? Indicate the concentration of each ion/molecule: A mixture of 50.0 mL of .2M KClO3 and 25.0 mL of a .20M Na2SO4. How would you answer ...

*September 13, 2007 by lily*

**SCIENCE?CHEMISTRY*****

DR Bob, can you go through the steps to work this out please.... how many grams of alcohol with a density of 0.900 g/cm ^3 (cm cubed) will have the same volume as 20.0g of mercury,with a density of 13.6 g/cm ^3 Do you have to find the volume of mercury first??? I know the ...

*May 14, 2010 by ANDY*

**Help with Translation**

Please help me translate this short letter. Dear Juan, If you do not want your girlfriend to leave, you need to listen to me carefully. You were wrong. In a relationship, no matter the situation, the guy is always wrong. Be a man and tell her you made a mistake. I am sure she ...

*March 30, 2009 by Robert*

**Physics**

At 08:00hrs a 2.7- m-long vertical stick in air casts a shadow 1.8 m long. If the same stick is placed at 08:00hrs in air in a flat bottomed pool of salt water half the height of the stick, how long is the shadow on the floor of the pool? (For this pool, n = 1.64.) I can't get...

*May 27, 2008 by Katie*

**Physics - Mechanics and Ocsillatory Motion**

The force shown in the figure acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x = 0.27 m. the figure can be found at: [[webassign dot net forwardslash walker forwardslash 07-16 dot gif]] (a) Find the speed of the object when it is at the ...

*October 30, 2010 by Sara*

**Math**

Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

*November 17, 2013 by Anonymous*

**Algebra**

Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

*November 17, 2013 by Anonymous*

**Physics**

I NEED HELP! Already answered on here but does not make sense/work. Please HELP! A 2.7 kg balloon is filled with helium ( density = 0.179 kg/m^3). If the balloon is a sphere with a radius of 5.2m , what is the maximum weight it can lift?

*December 1, 2010 by Kristy*

**About Paris**

how are vancover and paris alike? They are both well know, good tourist attraction sites, have many things to explore. Filled with amusement. Umm... would like more ideas..

*March 29, 2011 by Alice*

**environmental science**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

*April 13, 2008 by Pamela*

**environmental science**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

*April 13, 2008 by Angel*

**environmental science**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

*April 13, 2008 by Angel*

**chemistry**

A 23.9 g piece of metal heated to 97.8 oC is placed in 52.4 g water at 21.9 oC. After the metal is added, the temperature of the water rises to 29.9 oC. Calculate the specific heat of the metal. Express your answer in the units of cal/goC.

*November 20, 2014 by HAY*

**Chemistry**

A 45.4 grams of a gold metal sample was heated with the amount of energy of 228 J. Which of the following would the most plausible temperature change of the gold sample? The specific heat of gold is 0.131 J/g.oC. 12.8 oC to 38.3 oC 24.4 oC to 81.6 oC 23.8 oC to 62.1 oC 38.3 oC...

*February 28, 2015 by Heather*

**Practical English**

In which sentence are the italicized words a dangling modifier? A)Flying beneath the cloud, the pilot could see the airport. B)Resting on the sea bottom, the old trunk held coins. C)Arriving ten minutes late, the store was closed for the night. Not knowing the danger, the ...

*July 21, 2014 by Abigail*

**Math**

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the vector, v, with ...

*November 28, 2012 by Erick*

**trigonometry**

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the vector, v, with ...

*November 28, 2012 by Erick*

**Trigonometry**

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the vector, v, with ...

*December 2, 2012 by Erick*

**Trigonometry**

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 <----------- B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 <---------- D. 17 ...

*December 3, 2012 by Erick*

**Chemistry**

4. During a practical exercise, you find out that you need to adjust the pH of a strong acidic solution of volume 5.6 litres from 4.52 to 5.25 (i) What would you add, OH- or H3O+ to adjust the pH? Explain your answer. (ii) Assuming that there is a negligible volume change, how...

*August 3, 2011 by Edwards*

**Physical science**

Why don't you move when you pull a door open and the force the door exerts on you is equal to the force you exert on the door?

*March 22, 2010 by Taylor*

**College physics**

If the force increases when the current increase what can you say about the force on a current element as a function of the current?

*July 26, 2010 by monique*

**PHI103**

If I move to Texas, I will need air conditioning. I don't need air conditioning. So I didn't move to Texas" is an argument form known as

*April 8, 2013 by Krystal*

**English**

The burning of trees adds carbon dioxide to the air OR the burning of trees add carbon dioxide to the air?

*March 14, 2014 by Anonymous*

**physics**

A person holds a 1.56 baseball in his hand, a distance of 34.0 cm from the elbow joint, as shown in the figure(Figure 1) . The biceps, attached at a distance of 2.75 cm from the elbow, exerts an upward force on the forearm. Consider the forearm and hand to be a uniform rod ...

*October 25, 2012 by Aaron*

**AP Chemistry**

1. If alum is heated at first too strongly causing it to splatter out of the crucible what effect will this have on the determination of the water hydration? 2. If alum is heated insufficiently what effect will this have on the determination of the water hydration? 3. If not ...

*October 11, 2014 by Nicole*

**Math**

Sove the following application. The following scores were recorded on a 200-point final examination 193,185,163,186,192,135,158,174,188,172,168,183,195,165,183. (a) Find the mean final examination score (b) Find the median final examination score (c) If the mean or median a ...

*September 8, 2008 by Robin*

**Chemistry**

This is a question on Non-standard states. Calculate ¥ÄG605 for the following reaction under the given conditions. Use data obtained from the table below and assume that ¥ÄHo and ¥ÄSo do not vary with temperature. C2H4(g) + H2O(g) ¡æ C2H5OH(g) The ¥ÄHo and ¥ÄSo ...

*February 2, 2007 by Sally*

**geometery**

please walk me through this I am having a hard time with this A survey of 500 showed the following 15 had only camping 20 had only hiking trails 35 had only picnicking 185 had camping 140 had camping and hiking trails 125 had camping and picnicking 210 had hiking trails ...

*January 21, 2013 by carol*

**physics**

a sled is pulled at a velocity across a horizontal snow surface. if a force of 8.0x10 to the first power N is being applied to a sled rope at an angle of 53 degrees to the ground, what is the magnitude force of friction

*May 24, 2010 by josh*

**physics**

a sled is pulled at a velocity across a horizontal snow surface. if a force of 8.0x10 to the first power N is being applied to a sled rope at an angle of 53 degrees to the ground, what is the magnitude force of friction

*May 24, 2010 by ang*

**physics**

A person pushes a 11.0 kg lawn mower at constant speed with a force of 82.0 N directed along the handle, which is at an angle of θ = 45.0° to the horizontal.Calculate the normal force exerted vertically upward on the mower by the ground.

*November 5, 2010 by Anonymous*

**Physics**

A Force,F=10N,applied at an angle of 37 degree above the horizontal,moves a crate a distance of 5m along a rough horizontal surface.A frictional force of 5N opposes the motion.what is the change in kinetic energy?

*February 18, 2011 by Joel*

**physics**

a karate chop delivers a force of 3000 N to a aboard that breaks. the force that the baord exerts on the hand during this event is A. Less than 300N B. 3000 N c. Greater than 3000N d. need more info

*March 1, 2011 by Anonymous*

**Physics**

An external force F is holding a bob of mass 725 g in a stationary position. The angle that the massless rope makes with the vertical is θ = 33°. (a) What is the magnitude, F, of the force needed to maintain equilibrium in N? (b) What is the tension in the rope in N?

*May 24, 2012 by Ethan*

**Physic II**

Two like charges of the same magnitude are 8.0 mm apart. if the force of repulsion they exert upon each other is 4.0 N, what is the magnitude of each charge? (The constant of proportional for the Coulombic force is 9.0 x 10^9 N.m^2/C^2 ) Please show all work.

*January 26, 2014 by John*

**science**

A uniform AB 2m long Rod which exerts a downwards force of 60N at its centre is placed on a knife egde support position 0.8m from A determine the vertical downward force required at A to prevent rotation of the Rod.

*April 6, 2014 by mwazzy*

**Physics**

12 kg wagon is being pulled at an angle of 38o above horizontal. What force is applied to the wagon if it accelerates from rest to a speed of 2.2 m/s over a distance of 3.4 m? Is this question a typo? Am I supposed to solve for force or work?

*January 12, 2016 by silverback*

**PHY101**

A body weighing 3500N is pushed up a rough inclined plane by a force of 5000N. The angle of inclination is 30deg. and the force is applied horizontally. If the coefficient of kinetic friction is 0.5, calculate the acceleration of the body.

*May 17, 2016 by Ebieride*

**Physics**

Water flows through a garden hose that goes up a step 20.0 cm high. The cross sectional area of the hose on top of the step is half that at the bottom of the step. If the water pressure is 143 kPa at the bottom of the step, and the speed of the water at the bottom of the step ...

*December 2, 2016 by Micah*

**Math**

I have done two parts but no idea how to the third one. The height, h, in meters, of a firecracker fired into the air can be modeled using the function h(t)=-5(x-4)^2+85, where t is the time, in seconds, after the firecracker is fired. c) Use the graph to estimate i) how long ...

*February 26, 2015 by Anonymous*

**apa formatting**

Could you critique my paper I have a list of formatting at the end in those boxes could you identify the basic APA formatting tell me whats wrong or correct in each box. My Paper Judy Student May 18, 2007 Instructor: Alexander Hill Making the decision to return to school was ...

*February 26, 2008 by judy*

**chemistry**

A piece of metal weighing 26g is immersed in a quantity of water in a graduated cylinder. The initial volume of the water was 16.0 ml and volume of water plus metal is 22.0 ml. The density of metal in g/ml is? If you get this right i will hand you over my beach front property ...

*July 21, 2010 by Noel*

**7th grade**

How do you make a net for a 3D letter T?

*January 12, 2009 by Duncan*

**chemistry**

What is the net charge on Phe-Asp at each pH? a. pH 1 b. pH 7 c. pH 14

*April 26, 2012 by krystal*

**biochemistry**

What is the net charge on Phe-Asp at each pH? a. pH 1 b. pH 7 c. pH 14

*April 27, 2012 by krystal*

**Math**

What does the net of a cube look like?

*August 4, 2012 by Ami*

**math**

What is the net price factor discount of 25/15/10?

*November 18, 2013 by Dawn*