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A projectile is fired from the surface of the Earth with a speed 200 meters per second at an angle of 30 degrees above the horizontal. If the ground is level, what is the maximum height reached by the projectile?
What is the speed of the large cart after the collision. A 345 g chunk of gold at 98.5 degrees Celsius is dropped into a 656 g of water at 22.5 degrees Celsius. What will final temperature of the gold be after the system reaches equilibrium.
Two loudspeakers are placed 3-m apart. They emit 498 Hz sounds, in phase. A microphone is placed 3.2m distant from a point midway between the two speakers, where an intensity highest is recorded.
A plane is headed east with an air speed of 205.0 m/s. The wind blows southeast at 32.0 m/s. Determine the velocity of the plane relative to the earth.
The rate of flow of water through a horizontal pipe is 1.98 m3/min. Determine the speed of flow in m/s at a point
Two of the charges are negative and one is positive. Illustrate what work does the electric field have to do as these charges are assembled from infinity, without acceleration?
A person of mass 89.70 kg escapes from the burning building by jumping from a window situated 27.50 m above a catching net.
A 750-N Marine in basic training climbs a 9.5-m vertical rope at a constant speed in 8.25 s. What is his power output
neglect the initial speed of the roller coaster. A neautral water molecule in its vapor state has an electric dipole moment of magnitude 6.2x10^-30 C.m. How far apart are molecule's center of positive and negative charge.
A 900kg car strikes a huge spring at a speed of 24m/s(Figure 1) , compressing the spring 5.5m. compute the spring stiffness constant of the spring
What is magnitude of the Coulomb force
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What should be the tension in the wire if it is to take 0.8 seconds for a pulse to travel along the wire from one pole to the other.
(a) Determine the sound intensity at each of the three patches. (b) The sound power that passes through each of the patches is 2.00 10-3 W. Find the area of each patch.
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