(a) When rebuilding her car's engine, a physics major must exert 105 N of force to insert a dry steel piston into a steel cylinder. What is the magnitude of the normal force in newtons between the piston and cylinder? N (b) What is the magnitude of the force in newtons she would have to exert if the steel parts were oiled? N

Suppose a distant world with surface gravity of 7.84 m/s2 has an atmospheric pressure of 8.44 ✕ 104 Pa at the surface. (a) What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean? N (b) What is the weight of a 10.0-m deep cylindrical column of methane with radius 2.00 m? Note: The density of liquid methane is 415 kg/m3. N (c) Calculate the pressure at a depth of 10.0 m in the methane ocean. Pa

Starting from rest, a 0.0463 kg steel ball sinks into a vat of corn syrup. The thick syrup exerts a viscous drag force that is proportional to the ball's velocity. ?⃗ drag=−??⃗ where ?=0.292 N⋅s/m is a constant related to the size and composition of the ball as well as the viscosity of the syrup. Find the rate at which gravitational energy is converted to thermal energy once the ball reaches terminal velocity. P

Part A How much pressure is needed to compress the volume of an iron block by 0.30% ? Express your answer in N/m². Use Biron = 9.0 x 10¹0 N/m². Express your answer using two significant figures. ΔΡ = Submit Part B V ΑΣΦ ΔΡ Potm Request Answer Compare it to atmospheric pressure (1.0 × 105 N/m²). Express your answer using two significant figures. VO ΑΣΦ ? www. P ?

a) When rebuilding his car's engine, a physics major must continuously exert 3.74 x 102 N of force to insert a dry steel piston as it slides into a steel cylinder. What is the normal force (in N) between the piston and cylinder? (Enter the magnitude.) 1246.67 N b) What force (in N) would he have to continuously exert if the steel parts were oiled? (Enter the magnitude.) 187 X N

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

Calculate the force (in N) a piano tuner applies to stretch a steel piano wire 7.30 mm, if the wire is originally 0.860 mm in diameter and 1.35 m long. Young's modulus for steel is 210 x 109 N/m2. (No Response)N

P Some fish have a density slightly less than that of water and must exert a force, by swimming, to stay barely submerged. What magnitude of force, in newtons, must an 82-5-kg grouper exert to stay submerged in salt water (with density 1025 kg/m³) if its body density is 1015 kg/m³?

A trough is filled with a liquid of density 865 kg/m³. The ends of the trough are equilateral triangles with sides 4 m long and vertex at the bottom. Find the hydrostatic force (in N) on one end of the trough. (Use 9.8 m/s² for the acceleration due to gravity.) N

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