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Seismic p-waves travel at abou 6 km/s and s-waves at 4 km/s. If a seismometer records the arrival of these two waves 33s apart, how far away was the earthquake that produced them?
A dolphin in seawater at a temperature of 25 °C emits a sound wave directed toward the ocean floor 246 m below. How much time passes before it hears an echo? (The speed of sound in ocean water is 1533 m/s.)
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary.
Two boat landings are 1.0 km apart on the same bank of a stream that flows at 1.8 km/h. What is the speed of the boat relative to the water
A 89.0 kg skydiver hanging from a parachute bounces up and down with a period of 1.50 s. What is the new period of oscillation when a second skydiver
Two bars of identical mass are at 32 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°).
Three resistors, R1 = 17? , R2 = 52? , and R3=R, are connected in series with a 24.0 Vbattery, find the potential difference across each resistor
A pair of closely spaced square conducting plates measure 8.0cm on a side. What is the charge on the plates
Regarding the Earth and a cloud layer 750m above the Earth as the "plates" of a capacitor, calculate the capacitance. Suppose cloud layer has an area of 1 km2 and that the air between cloud and ground is pure and dry.
he string will break if its tension exceeds 60.0 N . The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Determine the maximum speed the stone can attain without breaking the string.
Light from a star has an intensity of about 75.5×10-8W/m2. how far away is it from Earth
A force of k is applied to an object for a small fraction of a second, t_k, less than the duration of one frame, t_f. Our simulation doesn't support applying forces for less than an entire frame, so if we wanted to simulate the effect of force k over..
A force vector points at an angle of 50.6° above the +x axis. It has a y component of +280 newtons. Calculate the magnitude of the force vector.
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