9.A beach ball is made of thin plastic. It has been inflatedwith air, but the plastic is not stretched. By swimming withfins on, you manage to take the ball from the surface of apool to the bottom. Once the ball is completely submerged,what happens to the buoyant force exerted on the beachball as you take it deeper? (a) It increases. (b) It remainsconstant. (c) It decreases. (d) It is impossible to determine.

A juniper-wood plank measuring 0.48 ft by 1 ft by 13 ft is totally submerged in water. (a) What is its weight? Ib (b) What is the buoyant force acting on it? Ib

Over the summer I decide to supplement my income educational offerings by building a glass-bottomed boat to drive around Lake Michigan. The glass floor is a rectangle, two meter by three meters, and that floor lies one meter below the water's surface. What additional force pushes up on the glass floor due to the increased gauge pressure underwater?  a 10,000 N  b 40,000 N  c 60,000 N  d 120,000N

A brick is thrown into a deep swimming pool. As it sinks deeper and deeper into the water, does the buoyant force on it increase or Decrease?  Explain.

2 6. A spherically shaped balloon has a radius of 12.5 m, and is filled with helium. How much extra mass can a cargo lift, assuming that the skin and the cargo of the balloon have a mass of 1050 kg? Neglect the buoyant force on the cargo volume itself. (The density of air is 1.29 kg/m³ and the density of helium is 0.179 kg/m³) ← NO 2 W S X H command #3 E D kg C с $ 4 ZEE!!! R F V G Search or type URL % R 10 5 T G A 6 MacBook Pro B Y H & 7 N U J * 00 8 M - ✪ K ( - O 9 dh V- V O L ) O command 1332 jil332 P > t : ; option { [ ? 4 1 + 11 FF A

A metal has mass of 8 kg when the mental is hanging from a spring scale and the totally submerged in water, the scale reeds 3.30kg. What is the density of the mental? (water density=1000kg/m^3) (A)2.80x10^3kg/m^3 (B)5.80x10^3kg/m^3 (C)1.70x10^3kg/m^3 (D)3.30x10^3kg/m^3

A spherical weather balloon is filled with hydrogen until its radius is 4.10 m. Its total mass including the instruments it carries is 16.0 kg. (a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? kN (c) Why does the radius of the balloon tend to increase as it rises to higher altitude? Because the external pressure     with increasing altitude.