(a) v2k (b) v2ka 2k (c) a

Q: I have 72 lightbulbs in my house. 53 of these lightbulbs are 65 watt and the other 19 lightbulbs are…

A: Determine the energy used in 1 year by 53 bulbs of 65 watts as follows.

Q: It is thought that there is at least 4*10^7 kg of uranium-235 that could be minded. The energy…

A:

Q: At room temperature, an oxygen molecule, with a mass of 5.31x10^-26 kg typically has kenetic energy…

A: The expression for the kinetic energy of molecule is, KE=12mv2       (I)            m=mass of…

Q: Not from book (1): Magnetar. On December 27, 2004, astronomers observed the greatest flash of light…

A:

Q: In a sunny location, sunlight has a power density of about 1 kW/m2 . Photovoltaic solar cells can…

A: The input power given to a solar cell is given by the equation,…

Q: 4. Let p and q be positive integers and suppose F is defined as follows p<q\ F(p.4)={F(p-g)+1 p2q)…

A: Given: p ,q are two positive integers, F is defined as, (i). F(2,5) Here p=2, q=5. P&lt;q; F=0…

Q: As we’ve seen, the sun’s energy comes from fusion reactions that combine four hydrogen atoms to…

A: As from the give data, four hydrogen atoms combine to produce a single helium atom.  The reaction is…

Q: 1. a) A conventional photovoltaic cell delivers 4.0x10a W of electric energy when illuminated with…

A: Output power by cell = 4.0 × 10-3 W  Input power = 1.2 × 10-1 W

Q: If you had two shoes, an ordinary shoe and an "antishoe" made of antiparticles, and you annihilated…

A: Consider that US population at this moment is 328.2 million. If each of them has a weight of 600N,…

Q: n a lab investigation, one group of students (group A) measures the speed of a 0.1-kilogram car at…

A: Group A: mass of car = 0.1 kg speed of car at bottom of hill = 2.5 msheight of hill (h) = 1 m Group…

Q: Two railroad cars, each of mass 5819kg and traveling 108km/h in opposite directions, collide head-on…

A: Mass of each car, m = M = 5819 kg Velocity, v = V = 108 km/h = 108×5/18 m/s = 30 m/s Thermal energy,…

Q: n the future pennies have become obsolete and a new type of furnace is invented that converts the…

A:

Q: "If C = -4i - 2j - 3k , what is C x j?" 3i - 4k 3i + 4k 3i + 2j - 4k 31 - 2j - 4k

A: vector product  C→×j^=i^j^k^CxCyCz010

Q: 5. How fast would a 61 kg person have to run (in m/s) in order to have same energy as that of a 110…

A:

Q: In recent years, there has been a large push for an increase in the use of renewable resources to…

A: i) The mileage of the car, which use gasoline as fuel, is 27.5 mi/gal. ie., using 1 gallon of…

Q: The ceramic glaze on a red-orange Fiestaware plate is U2O3 and contains 50.0 grams of 238U , but…

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Q: R(N)=f(N)g(N) where f(N) = 7.2N and g(N) = (1 - 7.9/N. If R(N) = H means that R'(N) = 0 and H =…

A: R(N)=f(N)g(N)  where f(N) = 7.2N g(N) = (1 - 7.9/N. If R(N) = H means that R'(N) = 0 and H = 10.5N,…

Q: Solar energy reaching the earth is about 1350 W/m2 outside the earth’s atmosphere, and 950 W/m2 on…

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Q: Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend much of their spare…

A:

Q: The mechanical energy of an * :object is given by 1/2mv*v O EK+EP O Ek1+EP1=Ek2+EP2 O O O O

A: Mechanical energy is defined as the sum of energy possessed by motion (K.E) and energy possessed by…

Q: The energy yield of a nuclear weapon is often defined in terms of the equivalent mass of a…

A: Given, Diameter= 10 km Density= 2500 Kgm3 Volume = 30 Km/s Radius= 5 km= 5000 m We know,  Density=…

Q: Two railroad cars, each of mass 7495kg and traveling 82.8km/h opposite directions, collide head-on…

A:

Q: Two railroad cars, each of mass 64000 kgkg and traveling 75 km/hkm/h in opposite directions, collide…

A: