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A spaceship enters the solar system moving toward the Sun at a constant speed relative to the Sun. By its own clock, the time elapsed between the time it crosses the orbit of Jupiter and the time it crosses the orbit of Mars is 50.0 minutes. As measured in the coordinate system of the Sun, how long did it take for the spaceship to travel that distance? The radius of the orbit of Jupiter is 778 × 109 m, and that of the orbit of Mars is 228 × 109 m.
A) 30.0 minutes
B) 43.6 minutes
C) 58.6 minutes
D) 69.8 minutes
E) 95.8 minutes
Physicians use a high-frequency (f = 1-5 MHz) sound waves,called ultrasound, to image internal organs. What is the critical agle for sound waves in air incident on muscle
An audio amplifier, represented by the AC source and theresistor R delivers alternating voltages at audio frequencies tothe speaker. find the time-averaged power delivered to the speaker
an electric doorbell requires a 12v 60 hz ac supply. awhat turn ratio is required on a transformer to operate from a
A dolphin in seawater at a temperature of 25 °C makes a chirp. How much time passes before it hears an echo from the bottom of the ocean, 208 m below.
A 120-g mug at 21C is filled with 210g of coffee at 91C. suppose all of the heat lost by the coffee is transferred to the mug, what is the final temperature of the coffee? The specific heat capacity of the mug is 7.8 X 10^2 J/(Kg C)
A pair of power transmission lines each have a 0.86ohms resistance and carry 940A over 13km. If the rms input voltage is 24kV. Calculate the voltage at the other end
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of magnitude 196 ?C on each plate. What is the dielectric constant of the dielectric slab
A 5 oz baseball is thrown in the air so that when it is at its highest point, it is traveling sideways at 50.0 ft/sec. what will be the speed of the baseball when it drops back down to the level of the field
The temperature of the surface of the sun is 6000K and its radius is 696,000Km. How much energy is the sun radiating into space per second
The train's weight is 17 Tons and the desired speed is500km/hr. The test rail track is 20Km long. how much current is necessary to create that magnetic field
Consider the light beam shown in the figure, where d = 173 cm and ? = 13.5°. How many times does the light beam reflect from the top mirror
A certain radioisotope has a half-life of 11.0 days. What fraction of an initial sample of this isotope remains after 22.7 days
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