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As Achilles approaches Boagrius, Boagrius throws his spear at Achilles. If the spear was traveling at 15 m/s when it strikes Achilles shield and penetrates 15 cm before coming to rest, Find what was the average force acting on the 4.5 kg spear?
if i connect a large number of 80.0 of capacitors in parallel across a 320.0 v battery how many capacitors do i need to
How should you quote the following measured value and associated error in the form xbest ± Δx?
A setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal traction force to an injured leg. (Let m = 6.05 kg and ? = 81.0°.) What is the traction force exerted to the right on the leg?
A 300 Kg boat is initially moving at a constant velocity.Suddenly, the boat feels a force due to the wind which is directed45 degrees north of east and has a magnitude of 100 N. After 10seconds, the boat is moving at 5 m/s in a direction 30 degree..
A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor's core. What is the plant's actual efficiency
Estimate the gravitational force between the Sun and Venus. The mass of the Sun is 1.99×10^30 kg. The mass of Venus is 48.7×10^23 kg. The distance between them is 10.8×10^10 m.
The molecular mass of helium is 4 g/mol, the Boltzmann's constant is 1.38066 × 10?23 J/K, the universal gas constant is 8.31451 J/K · mol, What is the average kinetic energy of each helium atom
a toroid having a square cross section 7.32 cm on a side and an inner radius of 16.2 cm has 560 turns and carries a
An unknown mass of tin is heated to a temperature of 222 C. It is placed into 200 g of water which is in a 100 g copper cup initially at 10 C. What is the mass of the tin sample
lenzs law is said to be a consequence of the principle of conservation of energy. explain this statement by describing
The isotope ^(99)Tc* is commonly used in several different types of medical imaging procedures. find the change in the nuclear mass after emission of the gamma ray
Suppose one bullet with M=5.12g moving to the right with a speed of 250 m/s directed at 21.3 degrees above the horizontal collides, What is the magnitude of their common velocity immediately after the collision
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