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When a click beetle is upside down on its back, it jumps upward by suddenly arching its back, transferring energy stored in a muscle to mechanical energy. This launching mechanism produces an audible click, giving the beetle its name. Videotape of a certain click-beetle jump shows that a beetle of mass m = 4.0 x 10-6 kg moved directly upward by 0.77 mm during the launch and then to a maximum height of h = 0.30 m. During the launch, what are the average magnitudes of
(a) The external force on the beetle's back from the floor and
(b) The acceleration of the beetle in terms of g?
A 100kg block is sitting at rest on a horizontal table. what is the force the table exerts on the block
A man walks at 3 m/s on a still day along the line between two fire stations. Find the apparent frequency of each whistle
A tire is filled with air at 15°C to a gauge pressure of210kPa. If the tire reaches a temperature of38°C, what fraction of the original air must be removed
In the figure below, a “semi-infinite” nonconductingrod (that is, infinite in one direction only) has uniform linearcharge density λ = 5.0 μC/m.Find (a) the component of electric fieldparallel to the rod and (b) thecomponent perpendicular to the rod ..
Using Newton's Version of Kepler's Third Law II Part A Pluto's moon Charon orbits Pluto every 6.4 days with a semimajor axis of 19,700 kilometers. Calculate the combined mass of Pluto and Charon. Express your answer using two significant figures. ..
An astronaut on the planet Vimrom IV finds that she can junp a maximum horizontal distance of 13.0 m if her initial speed is 4.90 m/s. what is the maximum height about the ground reached by the astronaut
A fire hose 10 cm in diameter delivers water at the rate of 16 kg/s. The hose terminates in a nozzle 3.4 cm in diameter. What is the flow speed in the nozzle
A 100kg hollow sphere is neutrally buoyant and completely underwater. Its volume is 0.5 cubic meter. what fraction of this volume is helium
An alpha particle (the nucleus of a helium atom, with charge +2 and a mass four times that of a proton), What is the speed of the antiproton when the particles are 1.6 nm apart
The Hoover Dam is 220 meters high and the pressure at the bottom of the dam is 2.2 million Pascals. What is the pressure at 55 meters from the surface in million Pascals
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. Find the power consumed by the air filter
in a laboratory a wavelength of a particular hydrogen emission line balmer beta line is observed as 486.1 nm. if the
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