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When a 700? resistor is connected across an AC power supply, the resistor dissipates energy at a rate of 15.0W .
Part A Find the rms current through the resistor.
I rms =
Part B Find the maximum current through the resistor.
I max =
Part C What is the rms value of the power supply's emf?
?rms =
A satellite is circling a small planet at a speed of 3.60 rev/day. If the satellite's orbit has a diameter of 30,000 km, how fast is the satellite moving
A 26.0 kg satellite is in a circular orbit with a radius of 1.60×105 m around the planet Glob. Calculate the speed of the satellite. in m/s
The hunter uses a small powerboat that moves at a maximum speed of 9 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
A nichrome toaster wire, initially at room temperature, carries 2.72A immediately after it's turned on. What's the temperature of the nichrome then
Find distances between the lens and the film
The level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, Determine the depth d of liquid in the tank?
Imagine that in a certain proton accelerator, roughly 1011 protons at a time go around a ring having a radius of 4.0 km, What is the current flowing in the ring, in amperes
A 295 Kg piano slides 4.1 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.
A merry go round at a children's playground can be approximated as a uniform circular disc with a diameter of 3.72 m and a mass of 288 kg. A constant force of 178 N is applied perpendicular to the outer edge of the merrygoround. How long does it t..
An aluminum wire has a cross-sectional area of 2.70x 10^-6 m^2 and carries a current of 7.50 A. The mass density of aluminum is 2.70 g/cm^3. find the average speed of the electons in the wire.
An engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III.
A tennis ball gun launches tennis balls at 17.6 m/s . It's pointed straight up and launches one ball; 2.0 s later, it launches a second ball. I already found - At what time (after the first launch) are the two balls at the same height? = 2.8s What..
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