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In a car lift, compressed air exerts a force on a piston with a radius of 3.18 cm. This pressure is transmitted to a second piston with a radius of 13.0 cm.
a) How large a force must the compressed air exert to lift a 1.32 x 104 N car?
b) What pressure produces this force? Neglect the weight of the pistons.
A 20.0 cm long organ pipe is filled with air and is open at one end and closed at the other. What is the frequency of the third mode
Four point charges, q, are fixed to the four corners of a square that is 11.2 cm on a side. An electron is suspended above a point at which its weight is balanced by the electrostatic force due to the four point charges, at a distance of 11 nm abo..
Two long parallel wires, each carrying a current of I = 4.0 A in the same direction, What is the magnitude of the Magnetic force per unit length between the wire
A chest x ray uses 10 keV photons with an RBE of 0.85. A 60 kg person receives a 0.30 mSv dose from one chest x ray that exposes 25% of the patient's body. How many x ray photons are absorbed in the patient's body
The hydraulic lift in a service station is capable of raising cars with a mass up to 2000kg. calculate the diameter of the driving piston if the lifting is to be accomplished with a force not to exceed 100N
The maximum current in a 26 µF capacitor connected to an ac generator with a frequency of 140Hz is 0.15 Amp. What is the maximum voltage of the generator
A person with perfect pitch sits on a bus bench listening to the 445 Hz horn of an approaching car. If the person detects the frequency of 488 Hz, how fast is the car moving.
a circular arc has a uniform linear charge density of -7 ncm. the value of the coulomb constant is 8.98755 109 nm2 c2.
Light waves are electromagnetic waves that travel at 3.00 108 m/s. The eye is most sensitive to light having a wavelength of 5.50 10-7 m. (a) Find the frequency of this light wave. Hz (b) Find its period. s
Ethyl alcohol flows through a horizontal tube of diameter 3.00 cm that is joined to a second horizontal tube of diameter 1.62 cm. What is the speed of flow in the first tube
At a certain location, Earth's magnetic field of 53 µT is horizontal and directed due north. find the angle between the current direction and due north
Estimate the thickness of steel (density 8 g/cm3) needed to stop a proton of momentum 2 GeV/c. Then, for the same thickness of steel, calculate the energy loss of a 2 GeV/c gamma ray.
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