Typical fresh water usage is approximately 150 litres per day per person. If all of this water came from a desalination plant with an energy cost of 4 kWh(e)/m3 what percentage would this be of the...
Typical fresh water usage is approximately 150 litres per day per person. If all of this water came from a desalination plant with an energy cost of 4 kWh(e)/m3 what percentage would this be of the...
A pilot geothermal plant is installed over a basin with an estimated stored heat energy capacity of 88 TJ. The geothermal plant has an average capacity of 230 kW. For how many years can this plant...
A thermal power plant produces 82 MWh/d of excess heat energy. How many homes could be heated from this source assuming heating requirements of 40 kWh/d per house?
When a battery is connected to the plates of a 3.00-uF capacitor, it stores a change of 27.0 uC. a) What is the voltage of the battery? (b) if the same capacitor is connected to...
Two capacitors, c1= 18.0 uF and c2=36.0 uF are connected in series and a 12.0-V battery is connected across the two capacitors. a) find the equivalent capacitance b)...
How much power is required to cool a house to 22oC on a 40oC day if the "leakiness" (heat-loss coefficient) of the house is 3.6 kWh/d/oC? You may assume that the air-conditioner cooling...
A typical residential hot water system that uses approximately 10 kWh(e)/d is replaced with an electricity-boosted solar hot water system that uses an average of 170 watts (W) of electrical power...
My question is at the bottom of the procedure. I've solved for everything else. Here's the procedure for the lab: Hold one end of a meter (yard) stick down on a tabletop so that...
So the angle is 14°, a=1.42m/s2, Vf=47.7m/s, coeffiecient friction=0.1 and the hill is 800 meters..... Consider how the work done by friction will reduce the final speed I...
A thermal power plant produces 82 MWh/d of excess heat energy. How many homes could be heated from this source assuming heating requirements of 40 kWh/d per house?
Bob walks up to a crate and begins pushing with 200N force. What is the magnitude of the frictional force? Will the box move? What is it's acceleration? the coefficient...
An explosion causes debris to rise vertically with an initial speed of 124 feet per seconds. The formula h=-16t^2+124t, describe the height of the debris above the ground h, in feet, t seconds...
Need help for a physics assignment due in a couple hours HELP!
A golf ball is pressed against a spring so that the spring is compressed 4 cm away from its equilibrium position. a) if the spring has a spring constant (k = 2450 N/m), how much work is...
A 2.0-kg mass is traveling at 5.0 m/s on a smooth horizontal surface when it collides with and sticks to a stationary 6.0-kg mass. The larger mass is attached to a light spring of force constant k...
5. Explain why the motion of a simple pendulum is not exactly the same as SHM.
4. When the pressure applied to an unknown liquid is increased from 1.0 E 7 Pa to 5.5 E 7 Pa, the volume of the liquid decreases by 0.70%. What is the Bulk Modulus of the liquid?
This is a physics problem that was on one of the recent physics tests. I struggled to figure this question
W1-T=m1a T-W2=m2a Solve the problem for acceleration in terms of the masses and the acceleration due to gravity, find the function a(m1,m2,G)...
A 100N Box (initially at rest) is pushed 10.0m, up a rough ramp by a horizontal applied force of 150N. The ramp is inclined at an angle of 30 degreees and the coefficient of kinetic friction between...