Recoil speed of the man and rifle
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. (a) Find the recoil speed of the rifle. (b) If a 700- N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.
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The bullet strikes the block and becomes embedded in it. After the collision the combined object swings on the end of the cord. When the block has risen a vertical height of 0.825 m, the tension in the cord is 4.60 N. What is the initial velocity
Where is the best place to find an assignment that compares and contrast the legacies of cultural syncretism in Africa and Americas with the resistance to cultural encountered in China and India?
The largest passenger ship still in service is the SS Norway, which has a mass of 7.6 × 107 kg. The force required to accelerate the SS Norway from rest to its top cruising speed of 33 km/h is 1.6 × 106 N, assuming that this accelerati
Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers should use which type of molecule?
A charge of -2.55 nC and a charge of -5.25 nC are separated by a distance of 40.0 cm. Find the position at which a third charge of +7.90 nC can be placed so that the net electrostatic force on it is zero.
If a bullet that leaves the muzzle of a gun at 324 m/s is to hit a target 84.0 m away at the level of the muzzle, the gun must be aimed at a point above the target. How far above the target is this point?
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A spelunker is surveying a cave. She follows a passage 150m straight west, then 290m in a direction 45° east of south, and then 280 m at 30° east of north. After a fourth unmeasured displacement, she finds herself back where she started.
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