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1. A sled of mass m is pushed for 5 seconds at a constant force. A sled of mass M (more) is also pushed for 5 seconds. THe force is the same in each case. WHat is the momentum of each sled? How do they compare? What is the energy of each sled? How do they compare?
2. The same question, except that each sled is pushed for 5 meters instead of 5 seconds.
Find out the average speed for the trip
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
The summit of a mountain 2450 m above a baseball camp is measured on a map to be 4 m horizontally from the base camp in a direction 32.4 west of the north. Illustrate what are the components of the displacement vector from the camp to the summit
Three blocks, each having a mass of 1.16 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface, find the magnitude of the force applied by the rod on the left
Two point charges q1 = 3.40 nC and q2 = -5.50 nC are 0.100m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. Take an electric potential to be zero at infinity.
When UV light of wavelength 260nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.20eV. What is the work function of the metal
What is the approximate mass of an object whose weight equals the force in part (b).
Two people with a combined mass of 120 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress by 7.44 cm. Find the total load supported by the springs
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. Illustrate what is the speed of the electron when it is 10.0 from charge 1?
Two infinite long wires are parallel to one another and are 5.0 cm apart. Both have current passing through them in the same direction. What is the resulting force on the 1.0 A wire
A tuning fork of unknown frequency is noted to be higher than one marked 512 hz and lower than one marked 1000 hz. You discover resonance points at .11 m and .53 m. Using 347 m/s for speed of sound what is the frequency of the new fork.
An ideal spring is lying horizontally on a frictionless surface, find the oscillation frequency of a 2.5 kg blcok under the same circumstances
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