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Q. Assume your waffle iron is rated at 1.20 kW when connected to a 3.60 x10^2 V source.
(1) What current does the waffle iron carry?
(2) What is its resistance?
Q. A force vector has a magnitude of 577 newtons and points at an angle 43o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector?
To pump 100Joules of heat from the ice cube tray of freezing water at 273K, out into a hot room at 310 K, the laws of thermodynamics say that you will need at least how many Joules of ordered energy or work.
A 38 ohm resistor is made from a coil of copper wire whose total mass is 11.2 g. Find out the length and diameter of the wire.
Two cars with equal mass collide head on. One car is going 18 mph. That car is push backward about 38 feet. What is the speed of other vehicle.
A uniform magnetic field of 0.50 T is directed along the positive x axis. A proton moving with the speed of 60 km/s enters this field. The helical path followed by the proton shown has a pitch of 5.0 mm. find the angle between the magnetic field an..
Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.
When light with a wavelength of 206 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 2.57 x 10-19 J. find the wavelength (in nm) of light that should be used to double the maximum kinetic energy of ..
An airplane is flying with the velocity of 82.0 at an angle of 22.0 above the horizontal. When the plane is a distance 111 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog..
The angular momentum of Earth is constant
If the accelerating plates are 1.60 apart, and have a potential difference of 2.60×10^4, what is the magnitude of the uniform electric field between them.
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and compute distance covered by the object between times t1 = 5.5 s and t2 = 7.9 s after it is released.
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 540 N. Find out the mass of the worker.
Assume the helmholtz coil consists of two sets of coaxial wire loops with 15 turns of radius R=75.00 cm, that are separated by R, and each coil carries the current 0.123A flowing in the same direction. Compute the magnitude and direction of magnetic ..
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