The polar coordinates of two vectors are; A = (10m, 240°), and B = (5m, 180'). a) Express each vector in unit vector notation.
b) Find, Ã = 2X + B in unit vector notation.
c) Find the magnitude of R.
d) Find the anticlockwise angle that vector R makes with +x axis.​

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Write the correct abbreviation for each metric unit

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s. t.p.?