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explain to me how Wx = Wsintitha instead of Wcostitha. P= Wx + F where F= FRICTIONAL FORCE W= weight component along the plane(Wsintitha) P= force applied The topic is Work,Energy and Power in physics?

6 years ago

Solve (50/32)raise to the power of -1 and 1/2?

6 years ago

A gas occupies a volume of 150cm3 at 25degree celcius and the pressure of 80cm hg. what will be the volume of the gas if the pressure were reduced to 75cm hg but the temperature remain constant?

6 years ago

500 cm3 of a gas is collected at 0 degree celcius and at a pressure of 72.0 cm of Mercury. what is the volume of the gas at the same temperature and at a pressure of 76.0 cm of Mercury?

6 years ago

Two vertical parallel conductors X and Y are 0.12m apart and carry currents of 2A and 4A respectively in a downward direction. Draw the resultant flux pattern between X and Y. ignoring the earth's magnetic field, find the distance from X of a point where...

6 years ago

A car of mass 100kg travelling with a velocity of 20mls was suddenly brought to rest 20m after application of break, find the average retardating force and power expended by the engine.?

6 years ago

what is the difference between an object of mass moving up a smooth inclined plane and that moving up a rough inclined plane?

6 years ago

Please tell me how to write these, if you have any idea. Let's assume we are all connected by the oceans;can we work together to protect the environment? Write an essay,story or poem on the above topic. It should be about 700 words?

6 years ago

Give me some tips. You are the most optimistic,connected generation the world has ever known,how can you use COMMONWEALTH connections for positive change?

6 years ago

Please if you have any idea on how to write these help me out. "Family, Community,Nation, Commonwealth.What are the opportunities for shared , sustainable growth?" Essay,story or poem should be about 700 words.

6 years ago

Which of The following statement is not correct about cathode rays. Emerge at right angles to the cathode Travel in straight lines Are deflected away from negative plates Are very light Are positively charged?

6 years ago

Please i need point on this topic both support and oppose, "glorious children are born or made"?

6 years ago

A is a solution of tetraoxosulphate (vi) acid, B is a solution containing 1.4g of potassium hydroxide per 250cm3. using the table above as the value for your titration and 25cm3 for the value of pipette used 1. concentration of B in mol/dm3 2. concentrati...

6 years ago

A is a solution containing 0.095 mol/dm3 of trioxonirate(v) acid solution. B contains 13.5g if X2 CO3 1OH2 per dm3. using the table above as the reading from your titration, calculation. 1. concentration of B in mol/dm3. 2. molar mass of X2 CO3 1OH20. 3....

6 years ago

If (x-1),(x+1) and (x-2) are factors of the polynomial ax^3+bx^2+cx-1. Find a,b and c respectively?

6 years ago

In a carnival ride,passengers travel in a constant speed in a circle of radius 5m and make 1 complete revolution in 40s. calculate the acceleration?

6 years ago

velocity of light in air and glass are 3.0*10^8m^-1 inverse 1.8*10^8m^-1 respectively one is for air and one is for glass. find the angle of refraction in glass. if the light travel from air to the glass.?

6 years ago

A crate of mass 20kg was moved up a rough plane inclined at 60° to the ground. If the crate was moved up a distance of 5m after 10secs, determine the total work done?

6 years ago

A spring s, is fimly fixed at one end A and allowed to lie parallel to a plane inclined at 60° to the horizontal. If a body of mass 30kg is placed gently at the free end of the spring. Calculate the maximum compression of the springs if (i) the plane is s...

6 years ago

Please can you explain this type of stress to me: In the following options lettered A to D, all the words except one have the same stress pattern. Identify the one with the different stress pattern. A. sanctify B. promising C. notify D. organic?

6 years ago

5.0g of a mixture of caco3 and caO liberated 1.32g of carbon(4) oxide on strong heating . what is the percentage of Cao in mixture?(c=12,O=16,Ca=40)?

6 years ago

A tube of uniform cross sectional area closed at one end contain some dry air which is sealed by a thread of Mercury 15.5cm long.when the tube is held vertically with the closed end at the bottom the air column is 22.0cm long, but when it is held horizont...

6 years ago

assume the specific heat capacity of water is 4.25lgk or 4200kj how many Joule is required to raise the temperature of 500g of copper 400jkg

6 years ago

A uniform plank PQ is 10m long and weighs 2.5KN. A downward force of 10N is 2M from the end P and upward forces of 5N, 3N and 8N act at end 6m from P and 10M from A respectively. What is the magnitude direction and position of the force necessary to produ...

6 years ago

describe an expirement to determine the specific heat capacity of the metal . state the precaution that should be taken and show how the results in calculated from the measurement made?

6 years ago

A cylindrical container has a base area of 150cm. It is filled with kerosene up to a height of 9cm. Find the volume of kerosene in the container?

6 years ago

Word that has the same consonant sound with dance?

6 years ago

how many demi semi quaver make a breve?

6 years ago

Which of the bearing is equivalent S50ΦW a). 040Φ b). 130Φ c). 220Φ d). 230Φ And explain?

6 years ago

the height of a right circle cine is 4cm. the radius of its base is 3cm. find its curved surface area.?

6 years ago

All of the following are quadratic equation except a). y=x^2 3x b). y=4(x 2) c). y=8x^2-5 d). y=x(x 1)?

6 years ago

The formula 2^2n-1 denotes the nthe term of a sequence. which term of the sequence is 2^21 a). 11th b). 6th c). 10th d). 8th?

6 years ago

A number is selected at random from the set y=(18, 19, 20..........28, 29). Find the probability that the number is a prime. a). 1/4 b). 1/8 c). 1/2 d). 3/4?

6 years ago

the logarithm of nay number or alphabets to the base of itself equals? a). zero. b). minus one c). the square of the number or alphabet d). the cube root of the number or alphabet e). one?

6 years ago

if the molar mass if an acid is 40.0g/mol and it's concentration in grammes per dm cubic (g/dm^3) is 200.0. find its concentration in mol/dm^3 a). 5.00mol/dm^3 b). 0.50mol/dm^3 c). 0.005mol/dm^3 d). 50.0mol/dm^3 e). 500mol/dm^3?

6 years ago

Solve 4x-6=14 use trial and improvement method?

6 years ago

"When they are used properly" what is the grammatical name and it's function?

6 years ago

the soldier picked _ his attackers one by one until at last they took to their heels A) out B) off C)on D)along?

6 years ago

the wavelength of ultraviolet radiation is 400nm. if the speed of light in air is exactly 3*10^8m/s, then the frequency of the ultraviolet radiation is? a). 1.3*10^-13hz b). 7.5*10^5hz c) . 1.2*10^11hz d) . 7.5*70^14hz?

6 years ago

the velocity ratio of an inclined plane whose angle is a I a). VR=1/sinA b). VR=1/tanA c). VR=1/cosA d). VR=1/cotA?

6 years ago

which of the following units is equivalent to kgm/s a). n/s b). nms c). ns d). j/s?

6 years ago

solve 3√12 10√3-6/√3?

6 years ago

the identity tan^2Φ cos^2Φequals a). minus half b). plus one c). coT^2Φ d). tangentΦ e). all of the above?

6 years ago

if a cell supplies a current of 0.5a when it's emf is 2v and internal resistance is 1 ohms calculate it's external resistance a). 0.5ohms b). 1ohms c). 2ohms d). 2.5ohms e). 3ohms?

6 years ago

in a class of 33 students, 18 play football, 12 play basketball and 7 play both games. How many students play none of the the two games. a). 3 b). 8 c). 10 d). 5?

6 years ago

the force (f) in Newton requires to male an kbject of m of mass q travelling with velocity (k) turns in circle of radius p is? a). f= Qk2/p b). f= kq2/p c). pk2/q d). kp2/q?

6 years ago

what is the resistance of a 240v, 60w electric filament bulb? a). 0.25ohms b). 480ohms c). 60ohms d). 240ohms e). 960ohms?

6 years ago

which of the following is true of an electric charge? a). positive charge means deficit of electrons. b). negative charges means excess of electrons. c). electric current means movement of electrons d). all of the above. e). a and b only?

6 years ago

find the value of of n for which 1/2n^2-13n 15 is not defined?

6 years ago

given that loga 16 - loga 8=1 find a a). 4 b). 2 c). 10 d). 5?

6 years ago

find the slope of the line 2y 5x=3 a). 5 b). -5/2 c). 2/5 d). 3?

6 years ago

what value of q makes the given expression a perfect square? a^2-8q q a). 2 b). 4 c). 8 d). 16?

6 years ago

find the equation of a line whose slope is 8 and pass through the point (-2,1) a). y=8x-2 b). y=8x 17 c). y=9-2x d). y=x 6?

6 years ago

simplify 9^-1/2/27^2/3 a). 1 b). 1/2 c). 1/9 d). 1/27?

6 years ago

if the probability that a candidate will fail his/her nursing entrance examination is 1/3 find the probability that he/she will pass a). 1/2 b). 1/4 c). 2/3 d). -1/3?

6 years ago

when the price of an apple increase by #5.00, 18 apples cost #60.00 more than 20 apples cost before the increase. find the new price of an apple.?

6 years ago

if 158g of a gas at stp occupies a volume of 50.00dm^3. what is the relative moat mass of the gas? (G M V at stp =22.4dm ^3 mold ).

6 years ago

A source of light used for newton's ring experiment consist of two wavelength, wavelength 1 = 7500armstrong and wavelength 2 = 5000armstrong. Given that the mth mark ring of wavelength 1 coincides with the (m + 1)th dark ring of wavelength 2. Determine th...

6 years ago

In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0kg from a vertical steel wire 0.50m long and 2.5 × 10^-3 cm^2 in cross sectional area. On the bottom of the sphere he attendes a similar steel wire, from which he hang a brass c...

6 years ago

Eminem,Lil Wayne and Chris brown are to share $142 such that Lil Wayne gets $11 less than Eminem and $7 more than Chris brown. How much is Eminem share.

6 years ago

By how much is the sum of 3 3/2 and 2 1/5 less than 7?

6 years ago

The highest hm of a dock above sea level is given by h = 6+4cos(15p)° , 0?

6 years ago

Find the gradient of xy^2 + x^2y=4xy at the point (1,3)?

6 years ago

Simplify leaving your answer in terms of sin0(titha) 1 /1-cos0(titha) + 1 /1+cos0(titha)?

6 years ago

An object is projected vertically upwards. It’s height hm at time t seconds is given by h=20t-3/2t^2 - 2/3t^3, find: a) the time at which it is momentarily at rest b) correct to 2dp, the maximum height reached by the object?

6 years ago

The lower and super fixed point of a certain thermometer are 30cm apart. At a certain clay the length of the mercury tread in the thermostat is 9cm above ice point 0ºC what is the temperature recorded by the thermometer in A. Celsius scale, B.kelum scale?

6 years ago

Triangle PQS and QRS are right angled triangles with angle PQS =angle SQR. find line QS,if line PQ is 36cm and line QR is 24cm. (both triangles share a common line QS)?

6 years ago

calculate refractive index of a material if the incident ray is two third the reflected ray which is 60°?

6 years ago

A malaria patient has a body temperature of 103.1°F. The equivalent temperature in Celsius and Kelvin respectively are?

6 years ago

Thanks so much damon.

6 years ago

Wow, nice. Thanks alot ms. Sue.

6 years ago

Thanks you so much, Lynx.

6 years ago

The formula for the volume of a cylinder is V=Bh or V=πr2h .

6 years ago

None of the above is not among the options.

6 years ago

I mean $

6 years ago