Posts by ara
Total # Posts: 11

Physics
A projectile is shot horizontally at 34.5m/s from the edge of a 55.0metre building a) Determine the height of the projectile from the ground after 2.0 seconds. b) Calculate the velocity of the projectile when the projectile reaches the ground. 
physics
When you hold an insect at the near point of your eye it subtends an angle of 5.00 x 10^3 rad. Determine the angular size (magnitude only) of the insect when viewed through a microscope that has an angular magnification with a magnitude of 145. 
Álgebra
135' 
Math
672cm square 
Maths Problem
Need Help Dan and Ellen started jogging at the same time along the route shown below. Both did not change their speeds throughout. after 35 min, Dan was at the halfway point and Ellen was 300 metres behind. Dan reached the end point 5 min before Ellen. What was the distance of... 
Math
2. A rectangle whose perimeter is 80 m has an area of 384 m^2. Find the dimensions of the rectangle. Solve it as a polynomial. 
Math
The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2. Find the dimensions of the rectangle. 
Algebra 2
4x^223 Put the equation in vertex form and find the vertex 
math
a bullet of mass m,with speed v,hits a fixed wooden block and penetrates a distance of l.find the average resistance of the wood. 
math
a bullet of mass m,with speed v,hits a fixed wooden block and penetrates a distance of l.find the average resistance of the wood. 
CHEMISTRY
if 16r of METHANOL are reacted wtih an excess of PBr3, how many grams of CH3Br would be formed if there is a 25% yield? eqn; CH2OH + PBr3 > CH3Br + H3PO3