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The EV-1 electric car made use of storage batteries as its sourceof energy. The car is powered by 26 batteries, each 12V, 52Ah(amp-hours). Its mass is 1300kg. Assume the care is driven on levelroads at an average speed of 40km/hr, and the average force offriction + air resistance is 240N. Assume 100% efficiency andneglect any energy to accelerate. No energy is consumed when thevehicle is stopped because it doesn't need to idle.
a.) determine the hors power required
b.) after approximately how many km would the batteries need to be recharged?
Find the resonance frequency of the ear canal, Treat it as a half-open pipe of diameter 8 mm and length 26.7 mm
how does the acceleration curve compare to the force curve? what differences are there? from looking at a graph what
A car is traveling at 50.0 mi/h on a horizontal highway. If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
A parallel plate capacitor has a capacitance of 5.9 ?F when filled with a dielectric. What is the dielectric constant of the dielectric
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.50 hours. What is the density of the planet? Assume that the planet has a uniform density.
The spaceship Enterprise 1 is moving directly away from earth at a velocity that an earth-based observer measures to be +0.80c. A sister ship, What is the velocity of Enterprise 2
A 640- hollow ball 19 in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 What is the torsional constant of the wire
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 hz that can travelup to 10 km. The intensity level of these sounds can reach98 dB, measured a distance of 4.5 m from the source.
A steel sphere 3.0 cm in diamter has a mass of 0.11 kg. What is the mass of a steel sphere 5.0 cm in diameter
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
A golfer hits a golf ball of mass 0.045kg the ball over some short trees. he hits the ball at an angle of 60 degreed to the horizontal, What is the change in momentum of the golf club
What is the shortest height a plane mirror must be so that a person who is 1.6 meters tall is able to see his or her whole body? plan a ray diagram to support your answer.
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