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The speed limit on a particular freeway is 28.0 m/s (about 101 km/hour). A car that is merging onto the freeway is capable of accelerating at 3.50 m/s2.
If the car is currently traveling forward at 13.0 m/s, what is the shortest amount of time it could take the vehicle to reach the speed limit?
A -4.0 microC charge is situated at the origin of an xy-coordinate system. What is the electric potential at a point x = 3.0 m due to these two charges
A wooden block is cut into two pieces, one with three times the mass of the other. Determine the ratio of d/D of distances each block travels
question you are traveling in a spaceship at a speed of 0.83c away from earth. you send a laser beam toward earth
A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale).
A +60 µC charge is placed 56 cm from an identical +60 µC charge. How much work would be required to move a +0.57 µC test charge from a point midway among them to a point 11.0 cm closer to either of the charges?
A 0.002 m^3 block of wood is fully submerged in water of density 1000kg/m^3 by a string with tension 10 N. Find the density of the wood
If a rocket that has a mass of 4000 kg expels 50kg of gas with a speed of 1500m/s, what will be the speed of the rocket
what is the total displacement of the jetliner between touchdown on the runway and coming to rest.
Suppose the space shuttle is in orbit 320km from the Earth's surface, and circles the Earth about once every90.9 minutes. Find the centripetal acceleration of the space shuttle in its orbit.
A stand fan has a circular base of radius 0.2 meter and mass of 2.3 kilogram. Find the pressure exerted by the fan on the floor
Two equal point charges of magnitude 4.0 ?C are situated along the x-axis at x1 = -2.0 m, compute the electric potential energy of this system of charges?
A heat engine with a thermal e?ciency of 37% does 175J of work per cycle. How much heat is extracted from the hot reservoir per cycle
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