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Now showing items 31-40 of 42

#### PhysCasts: A Camper Hangs a Pack

(Swinburne Commons, 2013)

In this PhysCast a camper hangs a 26 kg pack between two trees using separate roles of different lengths. Find the tension in each rope.

#### PhysCasts: Two Connected Masses on Slopes (With Friction)

(Swinburne Commons, 2014)

In this PhysCast we are asked to consider the motion of two blocks connected by a cord. Block A has a mass mA = 4.0kg, and block B has a mass mB = 2.0kg. The coefficient of kinetic friction between block B and the horizontal ...

#### PhysCasts: 2D Motion: Washout!

(Swinburne Commons, 2014)

This is a PhysCast on 2 dimensional motion. A raging flood has washed away a section of highway, creating a gash 1.7 meters deep. A car moving at 31 m/s goes straight over the edge. How far from the edge of the washout ...

#### PhysCasts: Expansion of an Aluminium Alloy Rod

(Swinburne Commons, 2013)

An aluminum-alloy rod has a length of 10.000 cm at 20.000 degrees C and a length of 10.015 cm at the boiling point of water. (a) What is the length of the rod at the freezing point of water? (b) What is the temperature if ...

#### PhysCasts: Conduction with Series and Parallel Rods

(Swinburne Commons, 2013)

In Figure (a), two identical retangular rods of metal are welded end to end, with T1 = 0 degrees C a left side and T2 = 1-- degrees C on the right side. In 2.0 min 10 J is conducted at a constant rate from the right to ...

#### PhysCasts: Hydrostatic Equilibrium: Pressure vs Height

(Swinburne Commons, 2013)

In this hydrodynamics problem we are asked what guage pressure must a machine produce in order to suck mud of a density 1800 kg/m3 up a tube by a height of 1.5 m?

#### PhysCasts: Hydrostatic Equilibrium and Archimedes' Principle

(Swinburne Commons, 2013)

An iron ball is suspended by a thread of negligible mass beneath a floting cylinder. The cylinder has a height of 6.0 cm, a top surface area of 12.0 cm2 and a density of 0.3 g/cm3. If the cylinder is submerged by 2.0 cm ...

#### PhysCasts: Calorimetry with Ice Water Mixture

(Swinburne Commons, 2013)

In this question a 50 g ice cube is dropped into 200 g of water in a thermally insulating container. If the water is initially at 25 degrees C and the ice comes from the freezer at -15 degrees C, what is the equilibrium ...

#### PhysCasts: Calorimetry with Steam-Ice Mixture

(Swinburne Commons, 2013)

In this question we are asked what mass of steam at 100 degrees C must be mixed with 150 g of ice at its melting point in a thermally insulating container to produce water at 50 degrees C?

#### PhysCasts: Exploring Bernouilli's Principle

(Swinburne Commons, 2013)

In this PhysCast we want to review Bernouillis equation, understand what the terms mean, and how they can be applied to a series of situations where we have fluid flow through a pipe.