Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A passive solar home in Iowa has 40 M^2 of south-facing double-pane windows and 100 metric tons (100,000 kg) of concrete heat storage. It has a backup furnace whose heat output is 40 MJ/h. Concrete has a heat capacity of about 800 J/C KG (about one-fifth that of water). Suppose that on a sunny winter day each square meter of windows admits 16 MJ of solar energy into the home.
(a) How many hours would the furnace have to run to provide the home with the same amount of heat as was admitted by the windows?
(b) How much would the thermal storage warm up if 40% of the solar heat were lost through the windows, walls, and roof of the house and the other 60% went to heat the storage?
a rock is thrown horizontally with a speed of 17 ms from a vertical cliff of height 30 m.a how long does it take to
A submarine on the ocean surface receives a sonar echo indicating an underwater object. What is the object's depth
The spacing between the lines in the pure rotational spectrum of 11B-2H (numbers are superscripts) is 3.9214E-11 s^-1, Calculate the bond length of this molecule
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. If a positron and electron are held a distance of 0.900 pm apart and then both are released from rest, when they are 0.324 pm away ..
A Carnot engine operating with an ideal gas takes heat energy from the hot reservoir at 500 degrees C and exhausts heat energy to the cold reservoir at 250 degrees C. If the engine does 400J of work per cycle, what is its efficiency.
Describe several ways that electromagnetic waves are similar to acoustical (sound) waves. Describe several ways that electromagnetic waves and acoustical waves are different.
A 2.0 kg hoop rolls without slipping on a horizontal surface so that its center proceeds to the right with a constant linear speed of 6.0 m/s. Find the momentum of inertia of the hoop
A motorcycle and rider have a total mass equal to 300kg. Therider applies the brakes, causing the motorcycle to accerelate at arate of -5m/s2. What is the net force on the motorcycle
a 86 mm focal-length lens is used to focus an image on the film of a camera. the maximum distance allowed between the
A 5.0-rn-diameter garden pond is 0.300m deep. Solar energy is incident on the pond at an average rate of 400 W/m2. If the water absorbs all the solar energy and does not exchange energy with its surroundings, how many hours will it take to warm from ..
two billiard balls of equal mass undergo a perfectly elastic head-on collision.if one balls initial speed was 1.80ms
Three equal positive point charges of magnitude Q = 3.00? C are located at three corners of a square of edge length d = 8.9 cm. What is the magnitude of the attractive force on the negative charge
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd