chemistry
N2(g)+H2(g)-NH3(g) Calculate the volume of ammonia gas produced when20cm3 of nitrogen gas was reacted with an excess of hydrogen gas
physics
A bird wants to rech its nest that is located 53 meters (35 degrees south of west) from where it is perched. If the maximum speed that the bird can fly with respect to the air is 12m/s and there is a wind blowing from a direction of east 35 degrees south at a speed of 8.1 mete...
maths
(b) A stone is thrown straight up with velocity 14 m s-1 Calculate (i) The time taken for the stone to reach the top of its motion (ii) The time taken for it to reach the ground again (iii) The maximum height it reaches (iv) What is the velocity of the stone at height 8.0 m?
maths
(a) A car accelerates from 0 to 30.0 m s-1 in 6.0 seconds, travels at a constant 30.0 m s-1 for 21.0 seconds, and then brakes to a stop in 3.0 seconds. (i) Draw a velocity-time graph illustrating this motion (ii) Calculate the acceleration (assumed constant) in each section of...
maths
(c) Given that 1 inch = 2.54 cm exactly, express the speed of light, 3.00 „e 108 m/s, in (3 marks each) (i) ft/ns (ii) mile/s
maths
onvert the following to scientific notation: (i) the distance to the sun, 149 500 000 000 m (ii) the wavelength of yellow sodium light, 0.000 000 5893 m (iii) the radius of an atom, 0.000 000 000 2 m
maths
Evaluate (3.00¡Á¡¼10¡½^12 )¡Á(2.40¡Á¡¼10¡½^(-20) ))/(8.00¡Á¡¼10¡½^(-1)
Math
How do you solve negative exponents?
Math
How do you solve negative exponents?
chemistry
A sample of oxygen that occupies 1.00x10^6 mL at 575 mm Hg is subjected to a pressure of 1.36 atm. What will the final volume of the sample be if the temperature is held constant? How would I set up this equation?
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