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Determine the net force, the work, the power, and the energy used if a force of 400 N is applied to push an object 20m in 10s against a constant resistance of 75 N.
A tanker ship spills oil (n=1.40) into the sea. Looking at this disaster from a helicopter overhead, what predominant wavelength of visible light do you see if the oil is 390nm thick
A 370 kg rocket sled can be accelerated at a constant rate from rest to 1200 km/h in 2.0 s. What is the magnitude of the required net force
You walk on level ground 0.5 km east, then 240.0 m south and then climbs to the top of a building that is 185.0 m tall. What is your final displacement?
one mole of oxygen gas is at a pressure of 5.30 atm and a temperature of 23.0degc.a if the gas is heated at constant
Two 3.0 g spheres are suspended by 11.0 cm long light strings. A uniform electric field is applied in the x direction. determine the electric field intensity that enables the spheres to be in equilibrium at ? = 9°
The second hand of a clock has a length of 0.30 m. Evaluate what distance does the tip of the second hand sweep through in 3 minutes and 45 seconds?
design a spatial filter to be placed in the fraunhofer plane of a 1.00 m focal length lens if the optical system is
The path of an electron, travelling at 3.7 × 104 meters/second, is making the right angle to a magnetic field. A single electron experiences a force of 2.2 × 10-15 Newton's while in the field. What is strength of the magnetic field .
a spring has a spring constant k 14 8.75 nm. if the spring is displaced 0.150 m from its equilibrium position what is
A hiker begins a trip by first walking 24.3 km southeast from her base camp. Determine the components of the hiker's displacements in the first and second days
What angle does the rope make with the horizontal.
A copper rod 25 cm long having a cross-sectional area of 7.5 cm2 is used to connect a boiler maintained at 100 oC to a large block of ice at 0 oC. What is the rate of change in entropy of the ice
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