# Posts by sweety

Total # Posts: 56

**math urgent please**

How many league matches were played, write an algebraic expression to denote the number of league matches between the teams, if the number of teams is n.

**chemistry**

how much volume of oxygen at stp in litres is required to burn 4g of methane gas completely

**maths**

A tank is half filled and contains 15litres.what fraction of the tank is full if it can contain 18litres?

**math**

(a^2/3)^6/8

**accounting**

imagine a business and its 50 transactions.. journalize it and also record it in subsidary books, post into ledger and prepare a trial balance... plzz help me...

**biology**

plzzzz,write differences between vegetative propagation and artificial vegetative propagation.(at least five)

**science**

how is the inventer of hydrogen

**Finance**

calculate of EPS and retained earning: year ended2009 with a net profit before taxes of $218000. the company is subject to a 40% tax rate and must pay $32000 in preferred stock dividend before distributing any earning on the 85000 share of common stock currently outstanding. 1...

**physics**

Consider two non-interacting Fermions (half-integer spin) confined in a “box”. Construct the antisymmetric wave functions and compare the corresponding ground-state energies of two systems; one with particles of identical spin and the other with particles of opposite...

**physics**

Analyze the radial distribution of the H-atom at the 2s state. How are the maxima situated with respect to the minimum? Is the “golden ratio” involved?

**ICT ( please answer as soon as possible.its urgent**

it means the answer for 3rd is development.

**ICT ( please answer as soon as possible.its urgent**

thanx a lot for ur cooperation... :)

**ICT ( please answer as soon as possible.its urgent**

please answer the correct answer fast...i will be very thankful 2 u...

**ICT ( please answer as soon as possible.its urgent**

1)all of these 2)developer 3)analysis

**ICT ( please answer as soon as possible.its urgent**

multiple questions: 1- Computers are connected to the internet through a)direct connection b)dial up connections through modems c)broadband connection through high speed alternatives to modems d)all of these 2)who is the person responsible for the development of the ...

**ICT**

1) Name three methods of implementing a new system. 2)After the system is designed it will need to be implemented.Discuss methods by which the system could be implemented and give reasons why the systems analyst might choose one of the methods and not the others?

**ICT**

Give four methods of analyzing the existing system?

**physics**

A bullet is shot straight upwards .It takes 18 seconds to reach the highest point in its trajectory.what was bullet maximum speed?

**maths**

1) The 17th hole at the famous st andrews golf course is 420 m in length.How long will it appear on a plan of the course of scale 1:8000? 2) On a map of scale 1:15000,the distance between the buckingham palace and brixton underground station is 31.4cm. what is the actual ...

**maths**

the distance from hertford to st albans is 32 km. how far apart will they be on a map of scale 1:50000?

**maths**

A floor is covered by 800 tiles measuring 10 cm square.How many square tiles of side 8 cm would be needed to cover the same floor?

**Homophones/ 8th grade English**

I want a poem of homophones

**Homophones/ 8th grade English**

rocecource

**Homophones/ 8th grade English**

I was trying to bring two chocolalates

**computer,plz...give me answer fast**

but there must be any reason why people use cd rom instead of floppy disk plz...anyone can give me the exact answer soo plz give me as soon as possible...

**social studies**

what do indus valley people eat, how they farm and what they tools for?

**physics- vry urgent**

time period= 1/frequency

**physics- vry urgent**

A human wave. During sporting events within large, densely packed stadiums, spectators will send a wave (or pulse) around the stadium (Fig. below). As the wave reaches a group of spectators, they stand with a cheer and then sit. At any instant, the width w of the wave is the ...

**physics**

An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a) the frequency (in...

**physics**

A human wave. During sporting events within large, densely packed stadiums, spectators will send a wave (or pulse) around the stadium (Fig. below). As the wave reaches a group of spectators, they stand with a cheer and then sit. At any instant, the width w of the wave is the ...

**oscillations**

A human wave. During sporting events within large, densely packed stadiums, spectators will send a wave (or pulse) around the stadium (Fig. below). As the wave reaches a group of spectators, they stand with a cheer and then sit. At any instant, the width w of the wave is the ...

**physics**

An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a) the frequency (in...

**physics**

yes u answered it yesterday bt i got Vc-Va and Vc-Vb wrong so i wanted to clear my doubt that Vb-Va should be zero?

**physics**

When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines going from down to ...

**electric**

When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines going from down to ...

**electric physics**

Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.4 cm-3, and their speed is 576 km/s. (a) Find the current density of these protons. (b) If Earth's magnetic field did not deflect the protons, what total current in amperes ...

**electric**

When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines going from down to ...

**physics**

The temperature of 7.10 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ÄEint in internal energy of the gas, and (d) the change ÄK in the average ...

**physics**

The temperature of 7.10 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ÄEint in internal energy of the gas, and (d) the change ÄK in the average ...

**physics**

thank u so much for the help

**physics**

Oxygen gas having a volume of 784 cm3 at 23.3°C and 1.03 x 105 Pa expands until its volume is 1170 cm3 and its pressure is 1.07 x 105 Pa. Find (a) the number of moles of oxygen present and (b) the final temperature of the sample. (Unit kelvin, K, for part (b).)

**thermal physics**

An automobile tire has a volume of 1.60 x 10-2 m3 and contains air at a gauge pressure (pressure above atmospheric pressure) of 167 kPa when the temperature is 0.00°C. What is the gauge pressure (in kPa) of the air in the tires when its temperature rises to 27.0°C and ...

**thermal physics**

A sphere of radius 0.583 m, temperature 39.4°C, and emissivity 0.983 is located in an environment of temperature 85.1°C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange?

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their ...

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their ...

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their ...

**physics**

In Fig, a runaway truck with failed brakes is moving downgrade at 160 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of è = 11°. The truck's mass is 1.5 x 104 kg. (a) What minimum length L must the ramp ...

**physics**

A fully loaded, slow-moving freight elevator has a cab with a total mass of 1800 kg, which is required to travel upward 50 m in 2.6 min, starting and ending at rest. The elevator's counterweight has a mass of only 780 kg, so the elevator motor must help pull the cab upward...

**physics**

In Fig. 12-46, suppose the length L of the uniform bar is 2.95 m and its weight is 164 N. Also, let the block's weight W = 468 N and the angle θ = 33.8°. The wire can withstand a maximum tension of 520 N. (a) What is the maximum possible distance x before the wire...

**physics**

the figure shows a uniform beam of weight 420 N and length 2.0 m suspended horizontally. On the left it is hinged to a wall, on the right it is supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1100 N. What ...

**physics**

the figure shows a uniform beam of weight 420 N and length 2.0 m suspended horizontally. On the left it is hinged to a wall, on the right it is supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1100 N. What ...

**physics**

if acceleration is -9.8, initial velocity is 10, initial position of a point is +0.5m. then when does it pass y=0 and what is the velocity at that time

**math**

its 1.780

**math**

Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters.

**math**

How many bit strings of length eight either start with a 0 bit or end with the two bits 00?

**physics**

calculate the speed of the pendulum at its lowest point if its PE is 5J at its heighest point and has a total mass of 1kg. 5 Joules = (1/2) M V^2 at lowest point. Solve that equation for V at lowest point.

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