ll

Most popular questions and responses by ll
1. math

A Ferris wheel has a maximum height of 245 feet and a wheel diameter of 230 feet. Find an equation for the wheel if the center of the wheel is on the​ y-axis and y represents the height above the ground. equation is ?

2. finance

Carlyle Inc. is considering two mutually exclusive projects. Both require an initial investment of \$15,000 at t = 0. Project S has an expected life of 2 years with after-tax cash inflows of \$7,000 and \$12,000 at the end of Years 1 and 2, respectively.

3. math

Justine earned \$25,000 during the first year of her job at city hall. After each year she received a 6% raise. Find her total earnings during the first five years on the job.

4. Math

identify the value of x that makes each pair of ratios equivalent 1. x:4" and "45:20" A.8 B.9 C.10 2.21 to x and 7 to 10 A.24 B.30 C.40 3.x to 50 and 16 to 25 A.32 B.34 C.41 4.6 to 8 and 18 to x A.20 B.22 C.24 5. 9/36 and x/4 A.1 B.4 C.9 6. 42/22 and 21/x

5. chemistry

A volume of 100mL of a 0.800 M HNO3 solution is titrated with 0.640 M KOH. Calculate the volume of KOH required to reach the equivalence point.

6. physics

A radar installation that is used to track airplanes transmits electromagnetic radiation with a wavelength of 4 cm. Calculate the frequency of this radiation in Hz.

7. cuny

2.A lab class conducts a 1000 trial scattering probability experiment. Nine (9) target marbles were used on a 46.0 cm wide board. The marble diameter was calculated to be 1.48 cm. 1.How many hits were recorded during the experiment? 2.If the standard value

8. Physics

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

9. Physics

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

10. Physics

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

11. physics

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

13. Physics

A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

14. PHYSICS

a car has a mass of 1200kg.The area of the tire in contact with the ground is .02m^2. What is the pressure of each tire?

15. chemisty

How many moles of Ba(OH)2 are present in 295mL of 0.800M Ba(OH)2?

16. phy.

If you witnessed a broadside collision, would you expect that the velocities and weights of the cars determine where the cars will land after collision?

17. physics

A radar installation that is used to track airplanes transmits electromagnetic radiation with a wavelength of 4 cm. Calculate the frequency of this radiation in Hz. Calculate the time required for a pulse of radar waves to reach an airplane 4.0 km away and

18. PHYSICS

a truck with a mass of 5000 kg and a velocity of 15.0 m/s collides head-on with a car whose mass is 1000 kg, moving at 30.0 m/s. if the two vehicles move together after the impact, at what velocity do they move?

19. PHYSICS

Calculate the stress, strain and young's modulus of a wire with a cross-sectional area of 3 x 10^-7 m^2 and a length of 0.6 m that is stretched to a distance of 1.2 x 10^-3 by a 120 N force.

20. physics

An appliance transformer-converter is plugged into a 120 volt AC house outlet. The primary coil has 200 windings of copper wire. The secondary coil has 15 windings of wire. Calculate the voltage output of the transformer-converter.

21. physics

Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)

22. physics

Archimedes decides to take a warm bath. If 1 calorie equals 4.187 Joules, and the heat of fusion of ice/water is 334 J/gram, calculate the number of calories it takes to liquefy a solid block of ice of mass 100 kg at 0°C. Use scientific notation.

23. algebra

GUY WIRE. How long is a guy wire reaching from the top of a 15ft. pole to a point on the ground 10 feet from the pole? exact length in feet. length in three decimal places in feet.

24. math studies

An arithmetic series has a first term of -4 and a common difference of 1. A geometric series has a first term of 8 and a common ratio of 0.5. After how many terms does the sum of the arithmetic series exceed the sum of the geometric series?

25. physics

The equation of a SHM of a 600 g object is given as x = 0.45 cos 6.4 t where the displacement x is in meters and time in seconds. What is the total energy of the system?

On my math worksheet it says, and I quote "Describe the following pattern(s) and determine the next two terms:" and then this little booger comes up. And honestly, I can't figure it out for the life of me! So if you could help it would be greatly

27. physics

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasound waves that travel at 1530 m/s in seawater. The time delay of an echo to the ocean floor below is 3 seconds. Find the depth of the water.

28. algebraA

lond distance trucker traveled 156 miles in one directionduring a storm. Thereturn trip in rainy weather was accomplished at double the speed and took 3hrs less time. Find the speed going.

29. algebra

The stooping distance d of a car after the brakes are appied varies directly as the square root of the speed r. If a car traveling 40mph can stop in 90 ft., how many feet will it take the same car to stop when it is traveling 60 mph.

30. economics

A country's excess of quantity demand is a nation's imports or exports?

31. conversion

800 watts -> KW

2 KW -> Hp

33. conversion

20 watts -> joule/s

34. conversion

10 Joules -> ergs/s

35. conversion

5 HP -> watts

36. physics. help!

An appliance transformer-converter is plugged into a 120 volt AC house outlet. The primary coil has 200 windings of copper wire. The secondary coil has 15 windings of wire. Calculate the voltage output of the transformer-converter.

37. physics

Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)

38. math studies

Find m and a: 12x + 3y = 36 mx - 9y = a

39. PHYSICS

compute for the density of a brake fluid used in a car which has a volume of 600cm^3 and a mass of 100 g?

40. PHYSICS

A spring of a car has a spring constant of 155 N/m. what is the force needed to stretch the spring by 5.00 cm from its original length?

41. Living Enviroment

- What is the purpose of the DNA Sequencing? -What is the purpose of the Polymerase Chain Reaction?

42. Language arts

In "Aunt Millicent,"how does Jamie make the settings of aunt Millicent travels appear realistic?

43. economics

what's the difference between buying rate and selling rate?

44. algebra

multiply and simplify z^2-7z-18/z^2-4z+4*z-2/z-9

45. american history

in what way did industrialization benefit the united states

1. Pre Algebra

who here is in washington conections that has the answers for unt 6 lesson 7

posted on May 14, 2019
2. Chemistry

JJ

posted on February 1, 2019
3. Social Studies

B C C A B B A&C D B B you on your own

posted on November 2, 2017

rose williams is right i got 100%

posted on March 29, 2017

MUDDA ANSWER FOR YOU WAS RIGHT

posted on March 28, 2017

All are right!

posted on November 2, 2016
7. Bank management

55

posted on September 26, 2016
8. Chemistry

what

posted on September 9, 2016
9. Math/algebra

i think that is correct

posted on April 18, 2016
10. life orientation

Which crime are you talking about?

posted on April 18, 2016

What are the answers to the Equations and Inequalities Unit Test

posted on January 20, 2016
12. Calculus

It's ( -3.7103 )

posted on December 17, 2015
13. physics

99

posted on December 8, 2015
14. Ratios of Similar Figures

posted on November 12, 2015
15. Simple Subjects

mrs marcus

posted on October 2, 2015
16. Physics

unsw phys1121 reppin

posted on April 26, 2015
17. social studies

omg

posted on March 10, 2015

no you did not

posted on April 10, 2014

Ouch! Tough blow Mr. Smeeth! Not everyone can be a genius. Thank you very much for this LOVELY time on jiskha but I very much have to go. Toodlhoo!! And thank you very much for helping me (or trying to)!! Until next time! Au revoir!!! A bientot!!

posted on August 26, 2013

Well Mr. Steve, I looked up two interlocking sequences anddddd... I got nothin. Nope. Nada. Zip. Not a single thing that's has to do with math. Yay 😕

posted on August 25, 2013

Okay I get where you are coming from on the 1 2 4 yada yada yada thing but I don't get how you got the second part with the 23 6 9 12. Can you please explain?

posted on August 25, 2013
22. MATH

2=5

posted on March 26, 2013
23. Math

jerome is making gift baskets using a ribbon that is 98 centimeters long he cuts 12 cenontimeter pieces of ribbon to tie on each basket what was the length of the ribbon after jerome cut off 5 pieces

posted on March 13, 2013
24. Thesis statements??

Thesis statement

posted on March 12, 2013
25. history

posted on November 28, 2012
26. us history

Also add that no national statutes could be passed without the approval of all 13 states, making federal laws difficult to pass. You already mentioned the fact that the central government was meant to be weak and did not have the power to tax, which are

posted on September 26, 2012
27. Chemistry

thank you. I don't understand why the O2 is to the power of two in the rate = k[NO][O2]2 when that is only a first order reaction and the NO is second order.

posted on March 30, 2012
28. math studies

how do you find m and a once you put the first term in standard form?

posted on October 21, 2008
29. math studies

can anyone help?

posted on September 28, 2008