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Heather in her Corvette accelerates at the rate of (3.00 - 2.00)m/s2, while Jill in her Jaguar accelerates at (1.00 +3.00) m/s2. They both start from rest at the origin of an xy coordinate system. Decide the following after 3.00 s.
a) How far apart are Heather and Jill?
b) What is Heather's speed with respect to Jill?
c) What is Heather's acceleration relative to Jill?
A person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed
A 0.38 kg iron horseshoe that is initially at 580°C is dropped into a bucket containing 21.8kg of water at 21 °C. What is the final equilibrium temperature (in °C)? Avoid any heat transfer to or from the surroundings. Do not enter units.
A 23 kg child goes down a straight slide inclined 38? above horizontal. The child is acted on by his weight, How large is the normal force of the slide on the child
ligtht of wavelength 620 nm passes thrrough a solid of refractive index 2.5 in which the speed of sound in the solid is
an automobile battery has an emf of 12.60 v and an internal resistance of 0.076 0?. the headlights together have an
at time t = 0 s, a puck is sliding on a horizontal table with a velocity 3.60 m/s, 35.0* above the + axis. What is the velocity of the puck at time t = 1.50 s
a charged particle has a mass of 20mg and a charge of 0.4 mc. the particle is moving with a speed of 300 ms when it
The wingspan (tip-to-tip) of a Boeing 747 jetliner is 59 m. The plane is flying horizontally at a speed of 220 m/s. Find the emf induced between the wing tips
Suppose the G-string of a guitar is 3.3 m long and has a linear density of 87.4 mg/m. What is the fundamental wavelength of the G-string for the guitar
A cosmic-ray proton in interstellar space has an energy of 17.0 MeV and executes a circular orbit having a radius equal to that of Jupiter's orbit around the Sun (7.78 x 10^11 m). What is the magnetic field in that region of space.
The number density in a container of argon gas is 2.37·1025 m?3. The atoms are moving with an rms of 427 m/s. What is the temperature inside the container
A woman can read the large print in a newspaper only when it is at a distance of 55 cm or more from her eyes. What should be the refractive power (in diopters) of her glasses
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