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A force F acts on a 10kg object at rest for 3s and changes its velocity to 6m/s. What is the change in momentum of the object? What is the impulse of the force on the car? Using the fact that impulse is equal to the change in momentum find F.
what common temperature must the two pieces be heated.
What is the final temperature of the water and zinc.
A javelin is thrown at an initial speed of 28.5 m/s at an initial height of 1.93 m above the ground, Find this maximum range
Light has a wavelength of 550 nm in a vacuum. It then enters a medium of index of refraction 1.70, What is the frequency of this light in the vacuum, What is its frequency in the medium
Think of the relationship between Kirchoff's Junction Rule and conservation of charge, Why cant charge build up at a junction of wires
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration after it has completed one-fourth of the circle.
Two small insulating spheres with radius 5.50×10?2m are separated by a large center-to-center distance of 0.555m, What is the direction of the electric field at this point
A block weighing 60.0 N rests on a plane inclined at 25.0° to the horizontal. A force F is applied to the object at 44.0° to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the pla..
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
A molecule of DNA (deoxyribonucleic acid) is 2.28 µm long, Determine the effective spring constant of the molecule
An electron is observed traveling at a speed of 25.7·106 m/s parallel to an electric field of magnitude 14000 N/C. How far will the electron travel before coming to a stop?
Three resistors are connected in series across a battery, What is the greatest voltage that the battery can have without one of the resistors burning up
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