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The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 above the horizontal, some of the tiny critters have reached a maximum height of 53.7 above the level ground. What was the takeoff speed for such a leap? What horizontal distance did the froghopper cover for this world-record leap?
A single conservative force F(x) acts on a 3.2 kg particle that moves along an x axis. What is the mechanical energy of the system
A soccer player kicks a rock horizontally off a 34.0-m-high cliff into a pool of water. what was the initial speed given to the rock
A river steamboat travels 36 miles downstream in the same time that it travels 24 miles upstream. What is the currents speed
A dentist's mirror is placed 2.3 cm from a tooth. The enlarged image is located 5.8 cm behind the mirror. How is the image oriented relative to the object
Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.0 cm and a current of 12 A. The bigger loop has a current of 20 A. What is the radius of the bigger loop
A Porsche 944 Turbo has a rated engine power of 217 . 30% of the power is lost in the drive train, and 70% reaches the wheels. what is its speed when it reaches maximum power output
The planet Neptune orbits our Sun at an average distance of 4.50 * 10^9 km.It's mass is 1.02 8 10^26 kg. The Sun's mass is 1.99 * 10^30 kg. What is the strength of the gravitational field at the "surface"of Neptune
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.3L in the warm store at 76?F. By how much has the volume decreased in liters
1.play with pendulum lab to figure out what variables affect the motion of a pendulum and write qualitative
One cubic meter of water flowing over Niagara Falls in New York drops 83.7 meters. how much heat energy would the water have
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. What is the depth of the well
A capacitor consists of two concentric conducting spherical shells with radii R1 and R2 = 4.0R1. It has capacitance C = 4.0 pF, and is charged to a potential difference of 60.0 V. by what factor does the stored energy change
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