karthik

A and B are two points 150 km apart on a highway.two cars start from A and B at the same time if they move in the same direction they meet in 15 hours but if they move in the opposite direction they meet in 1 hour find their speeds

2/5*-3/7-1/6*3/2+1/14*2/5

the speed of light in air is 30×10^4km/sec then find speed of light in 1 min

1.Name the type of solution 45g of NaCl in 100g of water at 80 degree celcius. 2. 39g of NaCl in 100g of water at 80 degree celcius

Iron carbide (Fe3C) particles are dispersed in iron. The surface energy of Fe3C is 2J/m2, the shear modulus of iron is 64GPa and the Burgers vector of iron is 0.25nm. What minimum surface energy of the obstacle is required to induce dislocations to be pin...

n isotropic alloy contains 5% by volume of a precipitate of radius 10nm. Assume the primary metal is in a simple cubic arrangement. The alloy has a Young's modulus E=70GPa and a Poisson's ratio ν=0.35. If Γ=0.9J/m2 (the energy needed to cut through the pr...

A rectangular piece of cloth is 3 ft. by 6 ft. What is the area of the largest circle that can be cut from the cloth? Round to nearest square inch.

greater

Neutrality

answer is 2/3

8 J/m^2

Almost forgot (b) If w is the horizontal distance from the firefighter to the wall, at the instant the angle of the ladder with the ground is π/3, find dw/dt=