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A standing wave that corresponds to the fourth harmonic is set up on a string that is fixed at both ends. If the frequency of this standing wave is 440 HZ what is the frequency of the lowest-frequency standing wave that could be set up on this string?
A thundercloud similar to the one described in Example 24.3 produces a lightning bolt that strikes a radio tower. find the effective resistance of the air during the lightning strike
A ray of light is incident on a flat mirror at an angle?. If we then rotate the mirror by 10° while keeping the incident ray fixed, by what angle will we rotate the reflected ray
Assume that the intensity of solar radiation incident on the cloudtops of the Earth is 1340 W/m^2. Calc the total power radiated by the Sun, taking the average Earth-sun separation to be 1.496 * 10^11 m.
A 500g mass on a string oscillates as a pendulum. The pendulum's energy decays to 50% of its initial value in 30s. What is the value of the damping constant
What is the mass of the block on the left. At what rate is the plate's area increasing when the radius is 50 cm? (Give your answer correct to 2 decimal places.)
To understand the vector nature of momentum in the case in which two objects collide and stick together. In this problem we will consider a collision of two moving objects such that after the collision, the objects stick together and travel off as..
You are walking along a small country road one foggy morning and come to an intersection. At what speed is the ambulance traveling
The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)?1. If a 56.5-gal steel container is filled completely with carbon tetrachloride when the temperature is 10°C, how much will spill over when the temperature rises t..
The human lungs can function satisfactorily up to a limit where the pressure difference between the outside and inside of the lungs is one-twentieth of an atmosphere. how far below the water can she swim
A very large non conducting plate lying in the xy-plane carries a charge per unit areaof 6σ. A second such plate located at z = 5.00 cm and oriented parallel to the xy-plane carries a charge per unit areaof -3σ. Find the electric field for the fol..
Two soccer players start from rest, 30 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
What is the magnitude of buoyancy force ?
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