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An LCR circuit contains a resistor 306 ohms, a capacitor 8.2 μF a and an inductance 1.1 mH. The circuit has a frequency of 100 Hz. Calculate the impedance in ohms to 2 s.f.
A string is fixed at both ends and is vibrating at 124 Hz, which is its third harmonic frequency. Determine the length of the string
You have a 0.421-kg sample of gas containing 1.99 moles. Calculate the rms, average, and most probable speeds of the gas\'s molecules
the U.S. five-cent coin, the nickel, has a mass of 5.1 grams, a volume of 0.719 cm^3, and a total surface area of 8.54 cm^2. how much radiant energy per second comes from the nickel
A parachutist descending at the speed of 25 m/s loses a shoe at an altitude of 50 m. (Assume the positive direction is upward.)
A 1 mL syringe has an inner diameter of 4.0 mm, a needle inner diameter of 0.220 mm, and a plunger pad diameter (where you place your finger) of 1.20cm.
A can of soup has a mass 420 g, height 13 cm, and diameter 5.6 cm. Calculate the moment of inertia of the can if it takes 1.5 s to reach the bottom of the incline
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h when the engineer spots a cow on the track. What is the magnitude of the train's acceleration
During a "brown out," the power line voltage drops from 120 V to 115 V. By how much does the thermal power output of a 1000 W stove burner drop
The mass of a star is 1.49 x 1031 kilogram and it performs one rotation in 38.7 days. Determine the force exerted on your fingertip
A projectile (mass = 0.28 kilogram) is fired at and embeds itself in a target (mass = 2.02 kilogram). Find what percentage of the projectile incident kinetic energy does the target (with the projectile in it) carry off after being struck
A 2.16 N force is applied to the plunger of a hypodermic needle. If the diameter of the plunger is 1.19 cm and that of the needle 0.199 mm, by what force does the fluid leave the needle?
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