Determining the spring constant problem
A 1000 kg safe is held 2 m above a heavy duty spring when the rope holding it breaks. The safe compresses the spring 50 cm. What is the spring constant?
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What is the ratio of the final surface charge density of sphere 1 to that of sphere 2? (Answer with 2 significant figures.)
The coefficient of kinetic friction between the runway and a tire is 0.60. A wheel has a moment of inertia of 2.9 kg m^2 and a radius of 0.15m. How long is the skid mark that the tire leaves on the runway?
An electric dipole consists of charges +2e and -2e separated by 0.65 nm. It is in an electric field of strength 3.10 x 106 N/C. Calculate the magnitude of the torque on the dipole when the dipole moment has the following orientations.
A proton is released from rest at the positive plate of a parallel plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50,000 m/s/ What will be the final speed of an electron released from rest at the negative
A flat surface having an area of 3.6 m^2 is rotated in a uniform electric field of magnitude E = 6.3 x 10^5 N/C. Determine the electric flux through this area in the following situations: (a) when the electric field is perpendicular to the surface
A muon is created by a cosmic-ray interaction at an altitude of 60 km. Imagine that after its creation, the muon hurtles downward at a speed of 0.998, as measure by a ground-based observer. After the muon's "internal clock" registers 2.0 microseco
A bowling ball has a mass of 7.2 kg and radius of 0.11m. A billiard ball has a mass of 0.38 kg and a radius of 0.028 m. Both are treated as a sphere. What is the magnitude of the max gravitational force that each can exert on the other?
You are in a boat that can move in still water at 7.0 m/s. You point your boat directly East across a river to get to the other side that is 200 m away. The river is flowing at 4.0 m/s. (a) Determine your velocity measured by someone on the shore,
A dipole of moment 0.5 e·nm is placed in a uniform electric field with a magnitude of 4.0 x 104 N/C. What is the magnitude of the torque on the dipole when
What is the total angular momentum predicted by the shell model for 37Cl in units of hbar?
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