cho

A WEATHER BALLOON IS TO OPERATE WHERE THE DENSITY OF AIR IS 0.9Kg/m3. THE BALLOON HAS A VOLUME OF 20cm3 AND IS FILLED WITH NITROGEN WITH DENSITY 0.09Kg/m3. IF THE BALLOON BAG WEIGHS 118N, WHAT LOAD CAN IT SUPPORT AT THIS ALTITUDE?

a 500gm mass is attached to a string 50cm long to make a pendulum. if the pendulum mass is pulled to the right, such that the string makes an angle of 35 degrees with the vertical, what is the maximum potential energy and kinetic energy

i think its 1atm as well

ur all wrong

for a, b, and c, the only forces are the normal force and W which are equal soo there's no unbalanced force am i right