Let us consider an ideal gas in a gravitational field which is uniform with strength g. The gas is trapped in a highly realistic h=10km vertical column of height h with perfectly insulating walls...
Let us consider an ideal gas in a gravitational field which is uniform with strength g. The gas is trapped in a highly realistic h=10km vertical column of height h with perfectly insulating walls...
find the binding energy in joules of a cobalt atom with 27 protons, 32 neutrons and a mass of 97.958205x10^-27kg
object distance u=(50±0.5) cm and images distance v=(20.1±0.2)cm. to obtain central value is easy. but how to obtain final error in focal lenght. in the book where...
i am not sure on how to solve this problem. I've tried solving for R by taking 50/2.1 and then using the formula P=I^2(R) but it did not work.
A roller coaster's highest hill is always the first one. This is because friction pulls energy out of the coaster as it moves along a track. If the highest hill of a particular roller coaster is 16...
A box is pulled at a constant speed by the little engine. The box moves a distance of 3 m across the horizontal surface. (μk=0.20) If 7938 joules of work is transferred, what is the mass...
A 673 kg roller coaster car traveling at 8.2 m/s reaches the bottom of a hill. In order for the ride to work properly, it needs to have a speed of at least 3 m/s at the top of the hill. (Assume negligible...
I've tried using the formula RMS current^2 X the resistor but it did not work. I am not sure how to solve this one.
If a car has 53 J of kinetic energy, what will its new kinetic energy be if you double its speed? How will the kinetic energy of the car change if you speed of the car is reduced to 1/3 of its...
True or false: Newton's laws apply only to reference frames that are not accelerating.
A certain radio station broadcasts at 101.5 megahertz. This is the frequency of oscillation of electrons in the transmitting antenna producing the radio wave. Find the period of the electrons' motion...
A uniform rectangular sign of width 53.4 cm, height 31.4 cm, and negligible thickness hangs vertically from supporting hinges attached at its upper edge. Find the period of small-amplitude oscillations...
Jimmy is sitting in a box on wheels at the top of a hill. If Jimmy and the box both have a mass of 246 kg and the the hill at location A is 97m high. When Jimmy gets to the bottom of the first...
A car of mass 1.31* 10^3 kg is initially moving on a level road at a speed of 16.0 m/s. Compute the increase in temperature of the brakes, assuming that all the mechanical energy ends up as internal...
Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbit is 5.79 x 1010m?
Suppose that by stirring 495 g of water you are able to increase its temperature from 19.0° C to 21.0° C. Find the increase in the water's entropy. answer in J/K
Ice of mass 12.0 kg at 0.00° C is placed in an ice chest. The ice chest has 2.80 cm thick walls of thermal conductivity 1.00 10-5 kcal/s · m · C° and a surface area of 1.20 m2.( a) How much heat...
Question: At a water park, Hugo climbs a 15.00m springboard, in 22.00s, to execute his famous THUNDER CANNON BALL. Hugo jumps up at 6.000m/s [up] off the end of the diving board and propels his mass,...
does a planet travel faster when it is nearer the sun or farther from the sun? what is the gravitational attraction between a dating couple sitting 0.152 m apart if the boy weighs 715...
A sinker on a string travels in a circle of radius1.00 m with a constant speed of 2.75 m/s. What is its acceleration?