A location at an altitude of 1,220 m recieves annual rainfall of 790 mm. Calculate the average power density of rainwater in W/m2. You may assume that every drop of rain is captured in a dam and runs...
A location at an altitude of 1,220 m recieves annual rainfall of 790 mm. Calculate the average power density of rainwater in W/m2. You may assume that every drop of rain is captured in a dam and runs...
It is estimated that 1 million GWh of wave energy hits Australian shores annually. Australia’s electricity consumption in 2012 was 225 billion kWh. Assuming 10% of our shores had wave farms...
Maximum altitude of model rocket? I have been given the mass of rocket (23 grams), mass of the engine (16.2 grams), mass of propellant (3.12 grams), average thrust of engine (8 grams),...
Acceleration of vertical: 9.8m/s^2 Horizontal distance: 26m Horizontal constant velocity: 23m/s Find height of horizontal
An upper limit of 24 kWh/d/p on the power available from wind in Australia was presented, subject to certain assumptions. The installed wind capacity in Australia in December 2012 was 2.576 GW. The...
A wind farm occupying a certain (unspecified) area in which the average wind speed is 3 metres per second (m/s) generates an average power of 5 kWh/d. If the wind speed is doubled to 6 m/s, what is...
The average annual rainfall in the Newcastle region is 1133 mm and the average land elevation is 21 metres. What would the hydroelectric power density be for the Newcastle region assuming everydrop...
A location at an altitude of 1,220 m recieves annual rainfall of 790 mm. Calculate the average power density of rainwater in W/m2. You may assume that every drop of rain is captured in a dam and runs...
A tidal power plant has been proposed for construction in the Newcastle region of England, where extreme tidal ranges are observed. The proposed plant would produce 100 GWh of electricity per annum...
The Pelamis Sea Snake wave energy collector has a peak power output of 750 kW, and can produce 2600 MWh annually.
Calculate the capacity factor of the wind farm. Express your answer as a percentage.
A car travels 100 km in the first two hours, stops for half an hour and then travels 200 km in the next four hours. Find the average speed of the car.
A sphere of radius a carries a volume charge density rho = rho-sub-zero(r/a)**2 for r < a. Calculate the electric field inside and outside the sphere. (N.B.: rho-subscript-zero is a...
A cannon is set to launch horizontally, i.e. ?=0°. The ball lands a distance h below the cannon and a distance x horizontally away from the cannon. Find the initial velocity of the cannon...
As an example, consider a cannon ball launched in the air. The cannon is on a cliff, 120 meters above sea level. If the cannon launches with a velocity of 300 m/s at 25°, how far from...
A 3rd baseman completes a double play by stepping on third base and throwing the baseball across the infield diamond to the first baseman. If the 3rd baseman throws the ball with an initial speed...
A MLB player hits a homerun. Generally air resistance has quite a noticeable effect on the ball in professional baseball games. For now though we will neglect it. The ball came off the bat with a...
A uniformly charged disk of radius 35.0 carries charge with a density of 7.90x10-3 C/m2. Calculate the electric field on the axis of the disk at (a) 5.00 cm (b) 10.0 cm (c)...
Two forces, P and Q are applied to the lid of a storage bin as shown in the figure on the next page. Knowing that P= 48 N and Q= 60 N, determine by trigonometry the magnitude and direction of the...
Determine by trigonometry the required angle θ that would ensure that the resultant vector of the two vectors shown only has a horizontal (x) component. If the hypotenuse of the triangle...