# Alfred

Popular questions and responses by Alfred
1. ## English

What is the difference in meaning between the following pairs of sentences? 1. I was a teacher. 2 I am a teacher

2. ## maths

The 4th term of an arithmetic progression AP is 37 and the 6th term is 12 more than the 4th term find. (i)the first term of AP. (ii) the seventh term of AP.

3. ## math

An oval track is made by erecting semi circles on each end of a 58 m by 116 m rectangle. Find the length of the track and the area enclosed by the track.

4. ## algebra 2

(x+1)^2-6=y Solve for x and y should be part of the final answer

5. ## Physics

A girl of 50 kg slides down a 8 m long slide into a pool. The upper end of the slide is 4.0 m above the water and the lower end of the slide is at the level of the water. Assume a coefficient of friction of 0.20, find: a) the potential energy of the girl

6. ## Physics

Does anyone have a giant list of WebAssign Physics1 work with the questions?

7. ## Math

Mark his a \$10 bill inside his favorite book. He forgot the pages where he hid it. If the sum of pages where the bill is hidden is 177, on what pages will Mark find his money ?

8. ## science

An aeroplane flies horizontally at 80m/s in still air. If the aviator wishes to fly due south and the wind is blowing from the south-east at 30m/s, 1. what course must he steer. 2. how long will it take him to arrive at his destination 200km away.

9. ## Math

A jug can hold 3 times as much juice as a mug if the jug can hold 2 L of juice how much juice in liters can the mug hold

10. ## math

one-half a number minus 6 is 4. find the number

11. ## Algebra

Identical squares are cut off from each corner of a rectangular piece of cardboard measuring 7cm by 12cm. The sides are then folded up to make a box with an open top. If the volume of the box is 33cm^3, what is the largest possible length of each side of

12. ## Math

A COMPANY CHARGES \$20.00 PER DAY PLUS 64 CENTS A MILE YOU DRIVE 100 MILES HOW MUCH DO YOU OWE?

13. ## geometry

penelope said that the side lengths of 4,12, and 8 could form a triangle because 4+8=12. is she correct

14. ## math

find the volume in cubic centimeters of the rectangular prism if the lenght is 2 1/2 cm and the width is 3 cm

15. ## chemistry

A 250.0mL sample of 0.0012M Pb(No3)2 (aq) is mixed with 150.0mL of 0.0640M Na (aq) should precipitation of PbI2 (s) ,Ksp=7.1¡Á10^-9, occur?

16. ## math

10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity

17. ## science

how many liters of water do u need to mix with a 250 grams of steric acid

18. ## Economic

What are welfare payments or consumer subsidies?

19. ## Honors Algebra II

I've been stuck on a problem with my homework for a couple of minutes now. We are doing Systems of Two Equations, using the substitution method. The problem is: 4y-6x+20=0 3=(18/5)x+(21/10)y

20. ## Compensation and Benefits

Compare and contrast the following methods of job evaluation, and include examples that are not the same as in the textbook to demonstrate understanding: Lott, Benge, and Multiple Regression. Identify the key differences.

21. ## Physics

A golfer drives a golf ball with a velocity of 100 ft/sec and an angle of 45 degrees. A. find the time of travel for the ball. B. Find the balls range. C. Find the maximum height of the ball

22. ## college algebra (math 90)

How do i graph this hyperbola? X^2+6x-3y^2=0

23. ## Thermodynamics (Chemistry)

Ag(s) + Cl2(g) --> 2AgCl(s) ∆H and ∆S are 254.14kJ and –115.0J/K respectively. Calculate equilibrium constant, K for the reaction at 500K?

24. ## Physical chemistry

Ag(s) + Cl2(g) --> 2AgCl(s) ∆H and ∆S are 254.14kJ and –115.0J/K respectively. Calculate equilibrium constant, K for the reaction at 500K?

25. ## Physical Chemistry

1.6 mol of Neon gas are heated from 20.0 °C to 85.2 °C at a constant pressure of 1 atm. Calculate the work done. (R = 0.082057 L.atm/ K. mol)

26. ## pre-algebra

find the volume of a pyramid 9in.by9in. by3in.round to the nearest tenth

27. ## Physics

A fountain has a cylinder with holes placed on the side at heights of 1 m and 2 m. The water level is the cylinder is kept at a height of 3 m by an input type. The water emerges from the holes and strikes the fountain pool at some distance x. a. What

6y+42=4y

29. ## Algebra

Process of eliminiation method ? Is there a solution, infinity or no solution. I don't get it. Can anyone help me? 3r - 5s = -27 5r + 3s = 23

30. ## Physics

1. What is the weight of a 24kg mass on Mars if its surface gravitaional field = 3.5N/KG? a) 235.2 N b) 84 N c) 24 kg d) 6.86 kg 2. A space shuttle is placed in a circular orbit around the Earth. It then thrusts its engine and moves to a new orbit, as

31. ## Physics

(a) Identify the significance of scientists James Clerk in hertz’s research. (b) Explain the physics of why hertz was able to detect sparkling in small detector coil when the detector was located in the position shown on the diagram above. (c) Describe

32. ## Physics

Explain how a galvanometer functions, using electromagnetic principles.

33. ## Physics

A dc electric motor found in the lab was being examined by a student. It was connected to a power supply and it was not attached to any load. (a) The student stated, ‘when the motor is switched on, the electrical energy input should cause the motor to

34. ## Physics

A very important experiment was carried out at the end of the 1800’s involving testing for the speed of the earth through the ether. (a) State the name of this experiment (b) Describe why the light beams are perpendicular to each other at one stage of

35. ## Physics

A student spins a 1.2kg rock around above her head horizontally in an experiment which aims to model how satellites orbit the earth. The student counts 3 orbits per second when the string produces an orbit radius of 35cm. (a) Calculate the centripetal

36. ## Physics

(A) Identify how the gravitational potential energy changes as a shuttle takes off from the launch pad. (b) Explain the consequences to the space craft and its occupants if the shuttle is undergoing re-entry, and the angle of re-entry is significantly

37. ## math

a baseball team a series of five games to play, with one game each day from monday through friday. If it rains on the day of a scheduled game, the game is cancelled. There is a 20 percent probability of rain each day. how likely is it that the team will

1. ## physics

from energy= 1/2mv^2. =1/2×0.5×3^2 =2.25 but work done=force applied then force=2.25 recall f=ma =0.5×10 5N so. coefficient=kinetic frictions limiting friction 2.25÷5=0.45 coefficient of kinetic friction =0.45

posted on November 9, 2019
2. ## english

Write a letter to uncle requesting him to pay up your school fees

posted on June 27, 2019
3. ## Civics

I'm doing a research on human rights violation

posted on April 16, 2019
4. ## science

biologe

posted on September 21, 2017
5. ## Physics

inverse sin--> = Sin^-1(1.46-1.48)= 80.57 deg 90-80.57 = The Max_ang = 9.43 deg

posted on March 15, 2017
6. ## Physics

t= √ 2y/g = √2(10m)/9.8m/s^2 = √2(10)/9.8 = 3.19 s d= 3.19s(100) = 319.4 = 319m

posted on January 15, 2017
7. ## calculus

The height of the the container/vessel is 4 cm so we use this to formulate the radius as h/4 in that specific time. V=1/3 pi (h/4)^2 (h) V=1/3 ((pi)(h^2))/16 (h) V=(pi h^3)/48 dv/dt= pi/48 ((3)(4)^2(2cm/sec)) dv/dt= pi/48 (96) dv/dt= (96 pi)/48 dv/dt= 2 pi

posted on October 18, 2016
8. ## math10

Let 23=x 408=y N= final answer then âˆš(23+âˆš408) - âˆš(23-âˆš408) becomes âˆš(x+âˆšy) - âˆš(x-âˆšy) Equating it to N âˆš(x+âˆšy) - âˆš(x-âˆšy)=N Solving this, N²= 2x-2âˆš(x²-y) Subsituting x=23 and y=408

posted on October 2, 2016
9. ## Trigonometry

215

posted on July 13, 2016
10. ## Science

Poop

posted on April 11, 2016
11. ## physics

42

posted on December 3, 2015
12. ## Physics

225j

posted on February 6, 2014
13. ## Physical Chemistry

so the formula is W = nR∆T Thank you for the answer above:)

posted on August 8, 2011
14. ## science-biome

plants and animals

posted on October 10, 2010
15. ## Algebra

a.10

posted on May 3, 2010
16. ## math

51...

posted on August 31, 2009
17. ## Chemistry

Does the density of air change when it is heated in a closed container?

posted on May 26, 2009