# jesse

Popular questions and responses by jesse-
## Physics

A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a speed of 29.5 m/s and has a speed of 28.0 m/s at the top of his trajectory, determine his maximum height (h) above the end of the ramp. Ignore friction and air

*asked on January 7, 2016* -
## calculus I

a slice of pizza, in the form of a sector of a circle, is to have a perimeter of 24 inches. What should be the radius of the pan to make the slice of pizza largest?

*asked on November 11, 2010* -
## Math

There is 48 students in a class. 7 out of 8 are females what percent are females?

*asked on March 3, 2018* -
## Physics

A child bounces in a harness suspended from a door frame by three elastic bands. (a) If each elastic band stretches 0.210 m while supporting a 7.35-kg child, what is the force constant for each elastic band? 114.33 N/m (b) What is the time for one complete

*asked on February 8, 2016* -
## physics

A pipe of length 10.0 m increases in length by 1.5 cm when its temperature is increased by 90°F. What is its coefficient of linear expansion?

*asked on December 19, 2010* -
## Maths

(3.6x10^-5)/(1.8x10^2) What's the answer in standard form?

*asked on October 27, 2018* -
## chemisrty

A 50.0 mL solution of 1.2 M HCl at 24.1C is mixed with 50.0 mL of 1.3 M NaOH, also at 24.1C, in a coffee-cup calorimeter. After the reaction occurs, the temperature of the resulting mixture is 29.8C. The density of the final solution is 1.05 g/mL.

*asked on June 18, 2014* -
## Physics

A 0.003 0-kg lead bullet is traveling at a speed of 240 m/s when it embeds in a block of ice at 0°C. If all the heat generated goes into melting ice, what quantity of ice is melted? (Lf = 80 kcal/kg, the specific heat of lead = 0.03 kcal/kg×°C, and 1

*asked on December 19, 2010* -
## Physics

Mt. Everest is more than 8,000 m high. How fast would an object be moving if it could free fall to sea level after being releases from an 8,000-m elevation? (Ignore air resistance)

*asked on December 3, 2010* -
## Physics

A steel wire, 150 m long at 10°C, has a coefficient of linear expansion of 11 ´ 10-6/C°. Give its change in length as the temperature changes from 10°C to 45°C.

*asked on December 19, 2010* -
## Physics

A baseball is released at rest from the top of the washington Monument. It hits the ground after falling for 6.0 s. What was the height from which the ball was dropped? (g=9.8 m/s2 and assume air resistance is negligible)

*asked on December 3, 2010* -
## Physics

When a drag strip vehicle reaches a velocity of 60 m/s, it begins a negative acceleration by releasing a drag chute and applying its brakes. While reducing its velocity back to zero, its acceleration along a straight line path is a constant -7.5 m/s2. What

*asked on December 5, 2010* -
## Physics

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that

*asked on April 29, 2010* -
## english

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. In this sentence i need to know what part of speech these words or phrases are:

*asked on September 30, 2010* -
## trig

A computerized spin balance machine rotates a 35-inch-diameter tire at 400 revolutions per minute. (a) Find the road speed (in miles per hour) at which the tire is being balanced. (Round your answer to two decimal places.) (b) At what rate should the spin

*asked on January 23, 2014* -
## Physics

Omar throws a rock down with speed 12 m/s from the top of a tower. The rock hits the ground after 2.0 s. What is the height of the tower? (air resistance is negligible)

*asked on December 3, 2010* -
## Physics

An automobile driver puts on the brakes and decelerates from 30.0 m/s to 0 in 10.0 s. What distance does the car travel?

*asked on December 3, 2010* -
## Math

There is a school that has 6,190 students there is already 216 how many more teachers are needed

*asked on March 3, 2018* -
## Maths

Harry is x years old now. 3 years ago Jenny was twice Harry's age. In three years timthe Ahmed will be 5 times as old as Jenny. Write an expression for Ahmed's ago now.

*asked on October 4, 2016* -
## Psychology

In this memory process, the individual records information to prepare it to be entered into memory. Storage Encoding Retrieval Priming i think the answer is encoding but then im confused?

*asked on June 9, 2011* -
## U.S. History

Why was separation of the races required?

*asked on May 5, 2011* -
## statistics

A casting director wishes to find one male and one female to cast is his play. If he plans to audition 5 males and 7 females, in how many different ways can this be done? DO NOT put a comma in your response.

*asked on March 11, 2015* -
## college

7) Which of the following is true? A. The product P in the marketing mix stands for only tangible merchandise. B. The product P in the marketing mix stands for only physical goods. C. The product P in the marketing mix stands for both physical goods and

*asked on July 7, 2010* -
## Math

5 coins are tossed. How many outcomes are possible?

*asked on March 17, 2008* -
## Algebra

A computer store buys a computer for $24 fixes it up and sells it for $91.20. What is the percent of increase in the price?

*asked on November 14, 2017* -
## Geometry

In triangle XYZ the measure of angle X equals 34 degrees and the measure of angle Z equals 38 degrees find the measure of angle y

*asked on March 19, 2017* -
## Science

Word that means "flat like a plate "(flat land that Is higher than surrounding land"

*asked on November 15, 2016* -
## physics

An Olympic diver falls from rest from the platform 10m high. At what velocity does the diver hit the water is acceleration in 9.8m/s^2. Do I assume "rest" means a initial velocity of 0? Could the formula be: d= (vf^2-vi^2)/2(a) ? as in d=10, a=9.8 vi=0 vf

*asked on November 18, 2014* -
## Psychology

The voltage at a receptor site has just changed from -70 millivolts to -75 millivolts as a result of an _______ and will ________. a). inhibitory postsynaptic potential;increase the likelihood of an action potential. b). excitatory postsynaptic

*asked on October 3, 2013* -
## ipc

Suppose all of the apples have a mass of 0.10 kg. If apple (A) is sitting on the ground, what is its potential energy?

*asked on September 6, 2011* -
## Fizzicks

How do you find the wavelength of a 68,000 Hz ultrasound wave in air?

*asked on March 31, 2011* -
## Physics

A windowpane is half a centimeter thick and has an area of 1.0 m2. The temperature difference between the inside and outside surfaces of the pane is 15° C. What is the rate of heat flow through this window? (Thermal conductivity for glass is 0.84

*asked on December 19, 2010* -
## Physics

Carbon dioxide forms into a solid (dry ice) at approximately -157°F. What temperature in degrees Celsius does this correspond to?

*asked on December 19, 2010* -
## math

drawing a black checker from a bag of 9 black checkers and 6 red checkers, replacing it, and drawing a red checker

*asked on December 9, 2010* -
## physics

You are pushing a 55 N lawnmower across the the yard. Its handle makes a 55 degree angle with the ground. What force are you exerting on the handle?

*asked on May 25, 2010* -
## Math

Two helicopters ﬂying at the same altitude are 2000m apart when they spot a life raft below. The raft is directly between the two helicopters. The angle of depression from one helicopter to the raft is 37° and the angle of depression from the other

*asked on June 13, 2018* -
## AP Chemistry

How long, in seconds, would it take to deposit 10.5 g of copper onto an electrode from a solution of Cu2+ if a current of 2.00 A was applied?

*asked on April 13, 2018* -
## Math 7 A

Note: For questions 5 and 6, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work.

*asked on November 20, 2017* -
## Math

Monthly payments on a house valued at $84000 with 4.9% compound interest over 30 years

*asked on January 8, 2016* -
## algebra

A rental company purchases a truck for $14,500. The truck requires an average cost of $6.75 per day in maintenance. (a) Find a linear function that expresses the total cost C of owning the truck after t days. C(t) = 1 (b) The truck rents for $55.00 a day.

*asked on October 25, 2014* -
## algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

*asked on October 25, 2014* -
## Chemistry

Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is

*asked on August 4, 2014* -
## Algebra

The ratio of the lengths of strings that play the guitar notes D and B is 27 to 16. If a string 64 cm long plays a B, what is the length of the string that plays a D?

*asked on June 11, 2014* -
## math

what is the least common multiple of 8,10

*asked on January 20, 2014* -
## math

a cookie recipe calls for 2 1/4 cups of flour.the yield of the recipe is two dozen cookies.how much flour goes into each cookie?

*asked on September 23, 2013* -
## Help

Any tips on how to get excellent grades? :) please reply fast

*asked on November 25, 2012* -
## chemistry

A nitrogen atom has 7 protons, and its most common isotope has 7 neutrons. A radioactive isotope of nitrogen has 9 neutrons. What is the atomic number and what is the mass number of this radioactive nitrogen? Show all of your work for full credit

*asked on August 26, 2012* -
## Chemistry

Which group of elements is most likely to not form ions?

*asked on April 26, 2012* -
## Music

What are good tips on how to write good lyrics to a song?

*asked on December 6, 2011* -
## Music

What are good tips on how to write good lyrics to a song?

*asked on December 6, 2011* -
## computer Programming

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked,

*asked on January 28, 2011* -
## math

Find the derivative of f(x)= (2x+3)/(3x+5)

*asked on January 6, 2011* -
## Math

Estimate the are under the curve f(x)=x^2-4x+5 on [1,3]. Darw the graph and the midpoint rectangles using 8 partitions. Show how to calculate the estimated area by finding the sum of areas of the rectangles. Find the actual area under the curve on [1,3]

*asked on November 18, 2010* -
## 30-60-90 triangle

The hypotenuse of a 30-60-90 triangle is 10. Find the perimeter. How do i do that?

*asked on March 28, 2011* -
## physics

A 0.50-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 1.0 m/s. What is the centripetal force of the ball?

*asked on July 7, 2010* -
## Algebra - 9th grade

please solve for either x or y: x/2 + y/4 = 7

*asked on April 13, 2010* -
## physics

Consider the limit on increasing the gravitational force by bringing the masses closer together. The two spheres of osmium cannot have their centers closer than the sum of their radii, and if the radii are made smaller, the masses decrease. To what power

*asked on January 7, 2010* -
## physics

For this problem use the Uniform circular motion mode of the simulation. (a) Given the limits on the sliders in the simulation, what is the maximum possible speed that can be achieved in "Uniform circular motion" mode? .25 m/s For the remaining parts of

*asked on December 20, 2009* -
## math

need a linear equation for this problem: A car rental company charges a base fee of $25, then an additional $5 for every additional 50 miles thanks

*asked on December 22, 2008* -
## Physics

I have some physics problems that I would like to get checked please?

*asked on September 23, 2007* -
## Fucntion Changes

I am having some trouble figuring out to find where a graph decreses and increases. These are the directions: Identify the intervals where the functionis changing as requested. 5. On this graph it wants to find where it is increasing. How would I find out

*asked on September 1, 2007* -
## Math

In a series of plays a football team gains 20 yards, gains 15 yards, and then lose 7 yards. What is the total gain or loss in yardage?

*asked on May 3, 2020* -
## Genetics

Hi, I need help interpreting this experiment. The locations of the TATA box in two species of yeast, Schisosaccharomyces pombe and Saccharomyces cerevisiae differ dramatically. The TATA box of S. pombe is about 30 nucleotides upstream of the start site,

*asked on February 25, 2020* -
## History

Which of the following is a central teaching of Islam?

*asked on January 28, 2020* -
## Maths

(3.6x10^-5)/(1.8x10^2)

*asked on October 27, 2018* -
## Science

A rocket is launched with a speed of 100m/s at an angle of 53.0 degrees above the horizontal with an acceleration of 30 metres per square seconds. After 3 seconds it's engines fail and the rocket proceeds to move as a projectile.Find the maximum height

*asked on September 23, 2018* -
## AP Chemistry

Under what circumstances is the enthalpy of formation of a compound from its elements usually: - positive - negative

*asked on April 13, 2018* -
## Social studies

lesson 14: focus on history 7th Please need help 1-14

*asked on October 19, 2017* -
## Math

An 85-year-old woman in Rotorua, New Zealand, won't have to pay her library fine. A book she borrowed from the local library in 1945 was found during a move. Based on the borrowing rules pasted inside the front cover of the book, the fine should have been

*asked on October 12, 2017* -
## Innovation

A car tire contains air at a pressure of 24 lb/in^2 at 0 degrees C. If the volume of the tire remains unchanged, what will the pressure be when the temperature has increased to 32 degrees C?

*asked on June 5, 2017* -
## history

what happened to the French. A did the French get defeated or B. is the French still fighting now to this day.

*asked on May 17, 2017* -
## Math

There are 13 2/3 cup servings per bag. How many 1/2 cup servings does that make?

*asked on April 13, 2017* -
## math

An arc of a circle measures 30° if the radius of the circle is 5 cm what is the length of the arc

*asked on January 30, 2017* -
## Science

Suppose you find fossils of clams in rock high on a mountain. what can you infer about the mountain?

*asked on January 23, 2017* -
## Math

An octopus can swim v km/h in still water. When the octopus swims against a current of 5km/h, its speed is decreased by 5km/h. When it swims with a current of 5km/h, its speed it increased by 5km/h. It takes Joey the Octopus the same amount of time to swim

*asked on October 28, 2016* -
## Math

How much pure antifreeze must be added to 18 liters of a 20% solution to make a 40% solution ?

*asked on July 17, 2016* -
## Physics CENTER OF MASS

A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. (a)There is a circular hole of radius 8.00

*asked on April 10, 2016* -
## AP Chemistry

A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 10-4) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak

*asked on March 23, 2016* -
## physics

Your CECS graduation tassel hangs from the rear view mirror of your graduation gift, a 1981 DeLorean DMC-12 with Mr. Fusion garbage fusion generator!!! Your tassel hangs plumb or vertical when driving at a constant speed on a level highway. When

*asked on March 1, 2016* -
## Chemistry

An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below. A: [NO]0 = 9.63 × 10-1 M, [O2]0 = 4.1 × 10-4 M t(s)

*asked on February 18, 2016* -
## Business Law

Celia and Mary are going to open a boutique. the opening of the boutique is delayed because the purses have not delivered after 60 days. They had a contract with the supplier specifying that the purses must be delivered within 30days. Can Celia and Mary

*asked on January 29, 2016* -
## Physics- just verfiying an equation

hello, so i'm doing a physics project where I have found the following equation for centripetal force: Fcent=mrù^2 Where f= centripetal force m=mass r=radius ù=angular velocity my question is to make centripetal force greater, does that mean mass, radius

*asked on January 9, 2016* -
## math

One 15 pound bag of lawn fertilizer covers 350 square feet. Garden Depot sells full bags of fertilizer for $7.89. What will the cost of enough fertilizer to cover a 42 foot by 80 foot lawn?

*asked on November 23, 2015* -
## physics

An airplane travels 3900 km at 810 km/h, and then encounters a tailwind that boosts its speed to 950 km/h for the next 3000 km. What was the average speed of the plane for this trip? 3900+3000 6900 6900/8 862.5

*asked on November 8, 2015* -
## Math

Find the surface area of the a square pyramid.The A = 3 m and H = 4.5 m?

*asked on March 30, 2015* -
## Math

I can't unscramble this. GONUENRIC It deals with Geometry.

*asked on March 4, 2015* -
## physics

1. A billiard ball of mass mA = 0.4 kg moving with a speed vA = 2 m/s strikes a second ball, initially at rest, of mass mB = 0.4 kg. As a result of the collision, the first ball is deflected off at an angle of 30.0o with a speed v’A = 1.2 m/s. Taking the

*asked on January 7, 2015* -
## algebra 2

h(t)=-4.9t^2+30.5t+8.5

*asked on November 16, 2014* -
## algebra

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln for various times (in minutes) is shown in the following table. Time, min

*asked on October 25, 2014* -
## college algebra

There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year.

*asked on October 25, 2014* -
## work force leadership

A supervisor needs to produce metal nameplates for bicycles. Two machines are available. The first requires a single die that costs $600. The plates will take 3 minutes each to produce at a total cost of $60 an hour. The second machine requires no initial

*asked on October 10, 2014* -
## Chemistry

Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is

*asked on August 4, 2014* -
## Chem

Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is

*asked on August 4, 2014* -
## Chem

*asked on August 4, 2014* -
## calculus

An electron, travelling at 2000 m/s, is suddenly influenced by an extreme deceleration of 3000 m/s2. How fast is it going 0.03 s later?

*asked on June 11, 2014* -
## algebra

m+3(m-4)=16 2z-4(9-3z)=62 2b+8/5=-12

*asked on March 5, 2014* -
## math

-n+8n=35 4x-7-7x=-1 -22+3k+6=-28 -2(m+7)=-22 m+3(m-4)=16 2z-4(9-3z)=62 2b+8/5=-12 g+4/7=6 9-3h/5=-6 4m-16/12=-3

*asked on March 5, 2014* -
## math

-3h=9(2-3h) 5(t+7)=2(s+9) 6(s+4)=3(s+9) 2(p+2)=1.8-2-0.2(p+5)

*asked on February 27, 2014* -
## math

30-2s=4s 13q-48=-3q 5z-43=2z+80 8f+11=-7f-19 9b-10=-b-18

*asked on February 27, 2014* -
## math

-(6-c)+3(2c-7)=1

*asked on February 20, 2014*