A cannon is sitting in a boat which is floating in a small pond. You attach one end of a chain to the boat and the other end of the chain to the cannon and throw the cannon out of the boat. The cannon hangs from the boat without touching the bottom of the pond. The water level on the sides of the lake when the cannon is hanging from the boat is ___________ when the cannon was inside the boat. A. exactly the same as. B. a little lower than C. a little higher than

Q3. A plastic ball of volume 75.0 cm³ and density 640 kg/m³ is at rest in ethanol alcohol. The density of the ethanol alcohol is 800 kg/m³. Clearly show all work! a) Draw of proper free-body diagram of the ball. b) What is the net force (magnitude and direction) on the ball? c) What is the weight force (magnitude and direction) on the ball? d) What is the buoyant force (magnitude and direction) on the ball? e) What is the tension force (magnitude and direction) on the ball?

Consider the following section of pipe. The velocity of water (Pwater h₁ m S V₁ = 2.9 h₁ = 3.2 m V₂ = 6.7 h₂ = 1.9 m m S Point 1 = 1000 kg ) and height are given for two different points in the pipe. Use this information to answer the following questions. m What is the ratio of the cross-sectional area at point 1 to the cross-sectional area at point 2? A₁ A₂ What is the difference in pressure between points 1 and 2? (Find P2 - P₁. Include a negative sign if that's what you calculate.) P2 - P1 = Pa Which direction is the water flowing through the pipe? Point 2 h₂

A 60 kg hot-air balloon carrie a person of 50 kg. The balloon and the person move at an upward acceleration of 1.75 m/s^2. What is the buoyant force on the system in SI base units? Other 588 O 110 O 1078 O 1270.5 As a balloon designer, what is the minimum volume of the hot-air balloon you need to make that possible? Use SI base units Other O 90 O 106 O 74

A 5.40 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 3.50 kg. How far does the object move in 0.300 s, assuming that it moves freely and that the drag force on it from the liquid is negligible? m

Drag Force: A spherical particle of radius 5.9 cm and a mass of 229 g is moving through a fluid of the same density. (This means you can ignore the effects of gravity.) 1 The position of the particle is given by x (t) = In (1+ bvot), where x is its position and t is the elapsed time. The initial speed vo is 17.4 m/s, and the constant b is 0.4 m-1. (b) What is the velocity of the particle after 2.9 seconds? (c) What is the acceleration of the particle after 2.9 seconds?

B and c