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Bob walks 240m south, then jogs 660m southwest, then walks 240m in a direction 29 degrees east of north.
(A) Use either trigonometry or components to find the displacement that will return Bob to his starting pont by the most direct route. Give your answer as a distance.
(B) Find the direction of the displacement that will return Bob to his starting point by the most direct route. Please explain.
The current in a 100 watt lightbulb is 0.770 A. The filament inside the bulb is0.190 mm in diameter, What is the current density in the filament
A wire with initial length L0 and radius r0 has measured resistance of 1.0 ohms. The wire is drawn under tensile stress to a new uniform radius of 0.25 r0. What is the new resistance of the wire
How deep does a point in the middle of the floor of a4-m-deep pool appear to a person standing 2.8 meters horizontally from the point? Take the refractive index for the pool to be 1.3 and for air to be 1. (Assume the person is standing in the pool wi..
The vertical velocity of a projectile
Assume that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision.
The interior of a refrigerator has a volume of 0.600 m3. The temperature inside the refrigerator in 282 K, what is the mass of air inside the refrigerator
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
question forces with magnitude of 125 newtons and 300 newtons act on a hook. the angle between the two forces is 45
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
What is the net upward force on an airplane wing of area 21.9 m2 if the speed of air flow is 293 m/s across the top of the wing and 278 m/s across the bottom
Multiple-Concept Example 3 reviews the concepts that are important in this problem. The entrance to a large lecture roomconsists of two side-by-side doors, one hinged on the left and theother hinged on the right. Each door is 0.640 m wide.
A small block of mass 1.14 kg slides without friction on a horizontal table. find the torque placed on the mass by the string
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