Edwin

In some states, real estate agents are legally required to A. back up the claims their clents make about home conditions. B. appraise the values of the properties they sell. C. hire home inspectors to perform pre0sale inspections. D. pay the fees the pre-...

17 years ago

Why can multicellular organisms be more complex than unicellular organisms?

16 years ago

is the most important step to help improve America's business ethics?

16 years ago

According to the Uniform Partnership Act, the three key elements of any general partnership are

16 years ago

(b) the digits of a positive integer having three digits are in A.P and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number. (c) if a,b,c are in A.P, prove that (i) (ab)^-1, 1/ac, 1/bc are als...

16 years ago

Don't understand differences between lo, la, le

15 years ago

The density of nitrogen at STP is 1.25 kgm^-3. Find the r.m.s velocity of nitrogen molecule at 20 degree centigrade.

15 years ago

The heat capacity of a mercury thermometer is approximately equal to the volume immersed in metre cube multiplied by a constant x. If the densities of glass and mercury are 2.40 x 10^3 kgm^-3 and 1.36 x 10^4 kgm^-3 and their specific heat capacities are 8...

15 years ago

24 kg of water are heated by a thermostatically controlled 4Kw electric heater. The thermostat switches the heater on at 60 degree centigrade and off at 65 degree centigrade. If the time between switching off and switching on is 3.0 min, what will be the...

15 years ago

Two spheres S1 and S2 of the same metal and having the same type of surface, have radii 20cm and 10cm respectively. Compare their rates of fall of temperature as they cool (a) when S1 is at 50 degree centigrade, S2 is at 40 degree centigrade, the surround...

15 years ago

A 24V battery of internal resistance of 10ohms is connected to a variable resistor. At what value of current drawn from battery the rate of heat produced by the resistor is maximum? Hence find its value.

15 years ago

A bird of mass 0.8kg hovers upwards by beating the mass of effective area 0.5m^2. (i) what is its upthrust? (ii) estimate the velocity imparted to the air by beating of the wings assuming the density of air at STP to be 1.3kg/m^3.

15 years ago

A plane sound wave propagated in air has individual particles which execute a periodic motion such that their displacement y from their rest position at any time t is y=5x10^(-6)sin(800pie(t)+theta). Calculate (i) wavelength. (ii) phase diff in degree bet...

15 years ago

What vibrates in the following types of wave motions (i) light waves. (ii) sound waves. (iii) x-rays.

15 years ago

A plane progressive wave on a water surface is given by the equation y=2sin2pi(100t-x/30) where x-is the distance covered in a time t, x, y and t are cm and second respectively. Find (i) the wavelength and frequency of the wave motion. (ii) the phase diff...

15 years ago

A vibrator attached and resting on the surface of water generates plane water waves and its propagation is found to take 50 seconds to reach a floating cork 65 cm away. If the cork subsequently vibrates with SHM of a period 3.8 seconds, determine the wave...

15 years ago

Find the vector eqn which passes through (1,1,2) and is parallel to the vector which is perpendicular to both 2i+2j-k and -3i+2j+k

15 years ago

A flywheel with an axle 1.0cm in diameter is mounted in frictionless bearings and set in motion by applying a steady tension of 2N to a thin thread wound tightly round the axle. The moment of inertia of the system about its axis of rotation is 5.0 x 10^-4...

15 years ago

A plane progressive wave is represented by the equation: y= 0.1sin(200pi(t)-20pi(x/17) where y is the displacement in millimetres, t is in seconds and x is the distance from a fixed origin O in metres. Find (i) the frequency of the wave, (ii) its waveleng...

15 years ago

The static pressure in a horizontal pipeline is 4.3 x 10^4 Pa, the total pressure is 4.7 x 10^4 Pa, and the area of cross-section is 20cm^2. The fluid may be considered to be incompressible and non-viscous and has a density of 10^3 kg/m^3. Calculate (i) t...

15 years ago

A small source O of electromagnetic waves is placed some distance from a plane metal reflector M. A receiver R, moving between O and M along the line normal to the reflector, detects successive maximum and minimum readings on the meter joined to it. (a) e...

15 years ago

Water flows steadily along a uniform flow tube of cross-section 30cm^2. The static pressure is 1.20 x 10^5 Pa and the total pressure is 1.28 x 10^5 Pa. Calculate the flow velocity and the mass of water per second flowing past a section of the tube. (densi...

15 years ago

A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy and angular momentum of the flywheel. (ii) calculate the value of frictional couple opposing the rotation. (iii)find the time t...

15 years ago

If the amplitudes of the two waves are 3 units and 1 unit respectively, show by the principle of superposition that the ratio of the amplitudes of the stationary wave at an antinode and node respectively 2:1

15 years ago

water flows along a horizontal pipe of cross-sectional area 48cm^2 which has a constriction of cross-sectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the...

15 years ago

Show that a force acting along a given line can always be replaced by a force of the same magnitude acting along a parallel line, together with a couple.

15 years ago

A progressive and a stationary simple harmonic wave each have the same frequency of 250Hz and the same velocity of 30m/s. Calculate (i) the phase difference between two vibrating points on the progressive wave which are 10cm apart. (ii) the distance betwe...

15 years ago

A small piece of cork in a ripple tank oscillates up and down as ripples pass it. If the ripples travel at 0.20m/s, have a wavelength of 15mm and an amplitude of 5.0mm, what is the maximum velocity of the cork?

15 years ago

A light rigid bar is suspended horizontally from two vertical wires, one of steel and one of brass. Each wire is 2.00m long. The diameter of the steel wire is 0.60mm and the length of the bar AB is 0.20m. When a mass of 10.0kg is suspended from the centre...

15 years ago

A special prototype model aeroplane of mass 400g has a control wire 8cm long attached to its body. The other end of the control line is attached to a fixed point. When the aeroplane flies with its wings horizontal in a horizontal circle, making one revolu...

15 years ago

An open tank holds water 1.25 m deep. If a small hole of cross section area 3cm^2 is made at the bottom of the tank, calculate the mass of water per second initially flowing out of the hole. (g=10m/s^2, density of water= 1000 kgm^-3)

15 years ago

A ball is dropped from a height of 20m and rebounds with a velocity which is 3/4 of the velocity with which it hit the ground. What is the time interval between the first and second bounces?

15 years ago

Three charges of 5 x 10^(-6) C are placed on the vertices of an equilateral triangle of 10cm. Calculate force on each charge.

15 years ago

A straight line AB of length 10 units is free to move with its ends on the axes. Find the locus of a point P on the line at a distance of 3 units from the end on the x axis.

15 years ago

A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 52(angle sign here) downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50.0 m length of aisle. Someone tell me if t...

15 years ago

Sorry for re-posting but I need to know if I did it right, please help, I worked out the problem I just want to know if I did it right. A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 52(angle sign here) downward from...

15 years ago

Yep its me again... sorry for re-posting this question but I am quite desperate here and I need to have this question answered, sorry if that sounds rude. IF 2.0 J of work is done raising g apple how far is it lifted? I know W= Fd hence I divided instead...

15 years ago

3x^2-12x-24=0

14 years ago

In what year did Napoleon lead the battle of waterloo?

14 years ago

define a supply chain driver and show it's relation to supply chain focus with a couple of examples

13 years ago

Many organizations find themselves in the apparently contradictory position of having high levels of financial investment in inventory, but at the same time frequently running out of stock of important components and materials. (a) explain how this situat...

13 years ago

Based on your knowledge of the relationship between photosynthesis and CO2, explain why CO2 concentrations cycle throughout the year.

13 years ago

How would I revise this sentence to eliminate unnecessary shifts in tense, mood, voice, or person? The freezing weather is threatening crops such as citrus fruits which were sensitive to cold. The freezing weather threatened the crops, which were sensitiv...

12 years ago

I would for you to overlook my narrative essay, for corrections and your advice. The essay is not finished, but would like to know am I on the right path. A Painful Moment It was the summer of 1998; I was twenty years old celebrating the 4th of July with...

12 years ago

A saturated solution of CaF2 (of MW 78.0 g/mol) contains 0.0167 grams per liter. What is the solubility product constant of CaF2?

10 years ago

A solution of NaOH(aq) contains 7.7 grams of NaOH in 93 mL of solution. Calculate the pH at 25◦C. ---- 7.7 grams x (1 mol/39.997 grams) = 0.19 mol 0.19 mol/0.093 L = 2.07 M pOH = -log(2.07) = -0.316 ---- Am I doing anything wrong? Why am I getting a negat...

10 years ago

A person rides a motorbike 145 m along a road that slants upward at 4.5 o from the horizontal. How much higher will the rider be at the end of the trip? How far has the rider gone in the horizontal direction?

9 years ago

A golf ball hit at a speed of 77 m/s will carry (achieve its maximum flight distance of) 256 m when driven at a launch angle of 16 deg. What would be its horizontal range in a vacuum if launched at the same speed and at the same angle ?

9 years ago

A tree and a flag pole are on the same horizontal ground, A bird on top of the tree observes the top and bottom of this flag pole below it at angle 45 degrees and 60 degrees respectively, If the tree is 10.65 meters high ,calculate and correct to 3 signif...

9 years ago

You have been hired as a financial consultant to defense electronics,Inc.

9 years ago

From 1 to 9, which number should be put in the middle of a magic square( 3 by 3 magic square), so that no matter how you add three numbers in a straight line .... up, down, sideways or diagonally .... you will get the same answer.

8 years ago

Use the normal distribution of weights of adult men, which has a mean of 170 pounds and a standard deviation of 7.5 pounds. Use the z-score chart to find the percentage of heights less than 155 pounds.

8 years ago

without oxygen cellular respiration grinds to a standstill although glycolysis can continue to make some atp anaerobically for a short time explain why the oxidative phosphorylation stops why does the citric acid cycle stop

8 years ago

A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initial velocity of the car is +22.0 meters/second. After the collision the velocity of the car is -11.0 meters/second. What is the...

8 years ago

What is the smallest positive integer?

7 years ago

Why did China’s economy succeed when the Soviet economy failed in the 1980s? A) China became more economically isolated and self-sufficient, rejecting membership in trade organizations. B) China implemented market-driven economic reforms while maintaining...

7 years ago

The temperature was -5∘F and then fell 8∘F. Don't get it

6 years ago

A 0.02 kg bullet has a speed of 500 m/sec. What is its kinetic energy

5 years ago

Give me the whole answer for the whole thing please Im

5 years ago

Explain two factors why risky behavior it is important for youth

5 years ago

If a gas * is a times heavy as hydrogen which will diffuse faster and by what factor.

3 years ago

Sorry typo I meant 180 g apple, I am really sorry

15 years ago

i think the supply chain driver is the supplier. And is related to supply chain focus by supplying raw materials to manufacturers who produce finished products. Then the supplier supplies the finished products to wholesalers. My lecturer said i was out of...

13 years ago

It will not be answered in units of k. It is asking for a force, so the units will be in Newtons. (I assume you meant "kN", which would be kiloNewtons.) The forces acting on the pilot at the bottom of the loop are gravity and the normal force. However, th...

13 years ago

Thank you for over looking my work and giving me confidence. English is not an easy subject for me.

12 years ago

>>She could paint 5 identical rooms during one 6-hour shift.<< So her painting rate was 5 rooms per 6 hours or (5 rooms)/(6 hours) or (5/6)room/hour How long did she take to paint each room? Let the length of time in hours be x Accomplishment = (Rate)(Tim...

11 years ago

Answer A. Rule for writing numbers: Spell out single-digit whole numbers. Use numerals for numbers greater than nine.

11 years ago

Yes, y=-2 is the equation of the line that contains all the points which have their y-coordinates as -2, such as (3,-2), (5,-2), (-4,-2), etc. Plot those. You'll see that they all lie on a horizontal line which is 2 units below the x-axis. That line is th...

11 years ago

Round $579 up to $600. Round $85 up to $100. $600-$100 = $500. (Notice that the exact answer = $494, so $500 isn't far off from it, and $500 serves the pupose well when you don't have a calculator or pencil and paper or just don't want to take time to cal...

11 years ago

That's the equation of a parabola opening downward, so the vertex will be the highest point on the parabola, and its x-coordinate will be the value of x producing that highest point. The formula for the x-coordinate of the vertex is -b/(2a) = -(300)/[2(-5...

11 years ago

Suppose the teacher says to the class: "We're going to play a game and to play it we must have exactly the same number of boys as we have girls. So 9 of you boys will have to go to another room while we play this game." So 9 boys get up and leave the room...

11 years ago

The solution to f(x)=0 is always the values of x where the graph crosses the x-axis, usually called the x-intercepts. Your graph is a V-shaped graph that crosses the x-axis at x=-4 on the left and at x=4 on the right. So they are the solutions to f(x)=0....

11 years ago

Yeah The large rectangle has an area of (3x2)+(3x5)=6+15=21 Factors of 21 1, 3,7, 21 The large rectangle is 3x7

10 years ago

Eleven minus 3

9 years ago

It will only be ellipse

9 years ago

mass of bottle=35 mass of water=85-35=50g mass of kerosene=75-35=40g therefore,density of kerosene= mass of kerosene/mass of water= 40g/50g= 4g/5g=1.15 ANS=1.15 g/cm3

9 years ago

What is abnormal demand

9 years ago

1. $10.20 2. $7.70

7 years ago

20

7 years ago

Thank you mathlive

7 years ago

Alice, Bernice, and Cheryl shared some stamps in the ratio 8:9:18. Alice received 184 stamps. Find the number of stamps that Bernice and Cheryl each received.

6 years ago

If you have the opportunity to say Dec 31, you win. If you have the opportunity to say Nov 30, you win. That's because: I can then only say Dec 30. You then say Dec 31 and win. If you have the opportunity to say Oct 29, you win. That's because: If I then...

4 years ago

Thanks we'll calculated

3 years ago

Hi, I do think this is an excellent blog. I stumbledupon it ;) I am going to revisit yet again since I book marked it. Money and freedom is the best way to change, may you be rich and continue to help other people. adwords ppc online advertising - seocons...

3 years ago

Teach me now please

2 years ago

I am not getting the can you please show me a diagram immediately please I beg of you

2 years ago

Where is the diagram please

2 years ago

The link does not work, I have tried so many times

2 years ago

I am not getting it

2 years ago

It said the video is unavailability

2 years ago

the second link is also not available

2 years ago