• ### Given 3 pts A(a,a+1 ) , B(-6,-3) and C(5,-1). Find the possible values of a if the length of AB is twice that of AC.?

2 answers · Mathematics · 1 day ago
• ### What's up guys math?

If the circle x²+y²+x+y-2=0 and the straight line y=2x intersect of 2 points (x₁,y₁)(x₂y²). find |x₂-x₁|.|
If the circle x²+y²+x+y-2=0 and the straight line y=2x intersect of 2 points (x₁,y₁)(x₂y²). find |x₂-x₁|.|
1 answer · Mathematics · 1 day ago
• ### Find the sum of 3 roots of eqn x^3+4x^2+x-6=0?

6 answers · Mathematics · 2 days ago
• ### Find the complex numbers z which satisfy the eqn (z+1³)=8(z-1)³?

2 answers · Mathematics · 7 days ago
• ### Chemistry Question?

For the equilibrium 2p(g)+Q(g) ⇄ 2R(g). Kc is numerically equal to 6.0 into a 1L flask are introduced 3mol of Q and 3mol of R a. Give the expression for Kc. b. Is the mixture at equilibrium state? Why? c. If not, what must the volume of the flask be in order for such a mixture to exist in equilibrium at the temperature for which Kc is given? [answer... show more
For the equilibrium 2p(g)+Q(g) ⇄ 2R(g). Kc is numerically equal to 6.0 into a 1L flask are introduced 3mol of Q and 3mol of R a. Give the expression for Kc. b. Is the mixture at equilibrium state? Why? c. If not, what must the volume of the flask be in order for such a mixture to exist in equilibrium at the temperature for which Kc is given? [answer is 18L]
1 answer · Chemistry · 3 weeks ago
• ### Physics Gravitation A Level?

A planet of radius of 4.8*10^6m with a gravitational field strength at the surface of 16N/kg. (i) Calculate the mass of planet. (ii) Give a diagram if can to show the gravitational field of the planet by using solid lines, and add a set of dotted lines to represent gravitational equipotential.
A planet of radius of 4.8*10^6m with a gravitational field strength at the surface of 16N/kg. (i) Calculate the mass of planet. (ii) Give a diagram if can to show the gravitational field of the planet by using solid lines, and add a set of dotted lines to represent gravitational equipotential.
2 answers · Physics · 3 weeks ago
• ### What's up? Chemistry?

For the equilibrium 2p(g)+Q(g) ⇄ 2R(g). Kc is numerically equal to 6.0 into a 1L flask are introduced 3mol of Q and 3mol of R a. Give the expression for Kc. b. Is the mixture at equilibrium state? Why? c. If not, what must the volume of the flask be in order for such a mixture to exist in equilibrium at the temperature for which Kc is given?... show more
For the equilibrium 2p(g)+Q(g) ⇄ 2R(g). Kc is numerically equal to 6.0 into a 1L flask are introduced 3mol of Q and 3mol of R a. Give the expression for Kc. b. Is the mixture at equilibrium state? Why? c. If not, what must the volume of the flask be in order for such a mixture to exist in equilibrium at the temperature for which Kc is given? [answer is 18L]
1 answer · Chemistry · 3 weeks ago

• ### Chemistry question?

A mixture of 0.1mol of N₂ gas and 0.3mol of H₂ gas in a tightly closed 2L container at a certain set of conditions undergoes a reversible reaction: N₂+3H₂ ⇌ 2NH₃ It was found that after 10 minutes, 0.22mol of H₂ gas remains unreacted. a. If the rate of reaction ammonia and hydrogen are represented by R(NH₃) and R(H₂). Give a rate expression to... show more
A mixture of 0.1mol of N₂ gas and 0.3mol of H₂ gas in a tightly closed 2L container at a certain set of conditions undergoes a reversible reaction: N₂+3H₂ ⇌ 2NH₃ It was found that after 10 minutes, 0.22mol of H₂ gas remains unreacted. a. If the rate of reaction ammonia and hydrogen are represented by R(NH₃) and R(H₂). Give a rate expression to show the relationship between hydrogen and ammonia.
Chemistry · 3 weeks ago
• ### Chemistry question?

A sample of metallic element M, weighing 3.172g combined with 0.6015L of oxygen gas at 20°C and 1.01*10^5 Pa to form a metallic oxide with the formula MO. If the density of O₂ gas under these conditions is 1.328g/L, what is relative atomic mass of M?
A sample of metallic element M, weighing 3.172g combined with 0.6015L of oxygen gas at 20°C and 1.01*10^5 Pa to form a metallic oxide with the formula MO. If the density of O₂ gas under these conditions is 1.328g/L, what is relative atomic mass of M?
3 answers · Chemistry · 4 weeks ago
• ### Chemistry reaction problem?

2 answers · Chemistry · 4 weeks ago
• ### Chemistry Calculation?

Complete combustion of a sample of hydrocarbon Q gave 0.66g carbon dioxide and 0.36g of water. What is the empirical formula of Q?
Complete combustion of a sample of hydrocarbon Q gave 0.66g carbon dioxide and 0.36g of water. What is the empirical formula of Q?
1 answer · Chemistry · 4 weeks ago
• ### Chemistry Question :)?

The relative atomic mass of Q is 24, it has oxidation number +2 in its oxide. Find the mass percentage of oxygen in this oxide.
The relative atomic mass of Q is 24, it has oxidation number +2 in its oxide. Find the mass percentage of oxygen in this oxide.
1 answer · Chemistry · 4 weeks ago
• ### Solve dy/dx + x =y^2?

Mathematics · 1 month ago
• ### Math Question?

Show that if z=tan y, the equation dy/dx+x sin2y=x^3cos^2y, reduces to dy/dx + 2xy=x^3. Hence solve the given equation.
Show that if z=tan y, the equation dy/dx+x sin2y=x^3cos^2y, reduces to dy/dx + 2xy=x^3. Hence solve the given equation.
Mathematics · 1 month ago
• ### ∫1/(x^2+1)^2 dx from 1-0?

1 answer · Mathematics · 1 month ago
• ### Evaluate this ∫√(2-x^2)dx, from1~√2?

3 answers · Mathematics · 1 month ago
• ### Find the general solution of the eqn (y^3+1)*dy/dx - xy^2=x?

1 answer · Mathematics · 1 month ago
• ### Given that y=4-5sin[(x/2)+(π/3)], -π≤x≤π. Find the greatest value of y.?

2 answers · Mathematics · 2 months ago
• ### If log(√2-1)=a, then log(√2+1)=?

3 answers · Mathematics · 2 months ago