Aweather balloon has a volume of 90.0 l when it is released from sea level. what
is the atmospheric pressure on the balloon when it has grown to a size of 175.0 1?

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27