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At 20 degrees C a lump of pure copper weighs 25.023g in air and 22.122g when submerged in water (D=0.9982 g/ml). Then suppose the copper is rolled into the 254 cm2 foil, of uniform thickness so
A inductor of 5H is subjected to the electric current which changes at a rate of 4.5 amps per second. Determine how much of a voltage drop will there be across the inductor?
Determine how will the angular acceleration of a disk raise if we were to raise the radius by a factor of 7.48?
Pinky consists of a mass of 3.54 kg sits on a pump handle at a distance of 35.57 cm from the axis of rotation. By using this information, determine the torque of Pinky when the handle is 66.8° f
The rotational inertia of the collapsing spinning star changes to 1/4 its initial value. Determine the ratio of the new rotational kinetic energy to the initial rotational kinetic energy?
An electric heater is made by applying a potential difference of 110 V across a wire having a resistance of 5.0Ω. Determine the power rating of the heater in kW?
The electron of charge q = -1.60 x 10^-19C is moving with a speed of 3.00 x 10^3 m/s perpendicular to the steady magnetic field of strength 0.200 T. When it is moving in a circle and travels 400 m,
Five flood-lights of 250 watt operate at night for 8 hours. When the cost of electricity if $0.08 per kWh, determine the cost of running the flood-lights for 14 nights?
The magnitude of torque on a square loop of area A having current I in a constant magnetic field of magnitude B if the magnetic field is parallel to the plane of the loop is?
A spool of thread consists of an average radius of 1.00cm. When the spool comprises 62.8 m of thread, determine the number of turns of thread on the spool?
A proton is positioned on the Earth's magnetic equator at 1000 m altitude. In which direction will it be deflected if it is projected downward? Describe in depth please.
The magnetic field of 1.2 T is present at an angle of 30 degree to the horizontal direction (or positive x axis). Determine the magnitude of the force experienced through the proton? (qp = 1.6 x 10^
Suppose that time of death corresponds to t = 0 and that core temperature at that time was 98.6°F. Find how many hours elapsed before body was found.
The Nichrome wire is substituted by a wire of the similar length and diameter, and same mobile electron density however with electron mobility 4-times as large as that of Nichrome. Now determine the
The magnetism of ferromagnetic materials, like iron, consists of its origin in the intrinsic magnetic moment of electrons which is related with their spin motion.
The two conductors are made of the similar material and encompass the similar cross sectional area. The ratio of their lengths is 2:1. They encompass the similar electrical potential across their le
If it is all right to feed hay to cows when only 10% of initial amount of iodine-131 released is left, how long did farmers have to wait to use hay?
The two conductors are made of the similar material and have the similar cross sectional area. Their length ratios are 2:1. Find out the ratio of their resistances?
If initial amount of slat was 25 grams and after ten hours 15 grams are left, determine equation for amount of salt preent at time " t ". How long will it take until 1/2 gram is left?
Determine the speed with which M hits the floor in terms of g, M, m and h. Find your result when m = 4.0kg, M = 12.0 kg and h = 3.0m
Guatemala City has latitude of 15.5 degree N and baton Rouge, Louisiana has latitude of 30.5 degree N. Determine distance between two cities given that radius of earth is 3960 miles.
Find revenue per case and annual fixed and variable costs for running operating room. How many eye operations should hospital perform each year to break even?
He starts descent at the rate of 10 mph. After descent starts, pilot doubles plane's total velocity. How fast is plane going?
Find out function equations which model at least 3 aspects or portions of image. Justify the choice of equations by superimposing them on image.
A diatomic molecule which is having μ=2.000 x 10-26 kg and a bond length of 250.0 pm is rotating about its center of mass in the xy-plane.