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You throw a 5-kg ball from a platform (releasing the ball at a height of 5 m) with a speed, 10 m/s, at an angle of 30° with respect to the horizontal.
a. Find the maximum height of the ball above the ground.
b. Find the total speed of the ball when it hits the ground.
A gunman standing on a sloping ground fires up the slope. The initial speed of the bullet is v0= 390 m/s. Find the maximum rangeof the bullet along the slope
How much voltage is required to cause possible heart fibrillation in a man, which corresponds to 490 mA of direct current?
A man pushes on a piano with mass 180 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 20.0^circ above horizontal floor. Overlook any friction acting on the piano.
A distant galaxy emits light that has a wavelength of 699.1 nm. On earth, the wavelength of this light is measured to be 701.6 nm, Decide whether this galaxy is approaching or receding from the earth
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 49.2 J and a maximum displacement from equilibrium of 0.280 m.
The spheres are touched together and are then returned to their original separation d. Illustrate what is the force between them.
Two protons that are very far apart are hurled straight at each other, each with an initial kinetic energy of 0.21 MeV, What is the separation of the protons from each other
A solenoid 7.5 cm in radius and 88m in length has 9800 uniformly spaced turns and carries a current of 3.5 A. What is the magnetic flux through this circular surface
As an eager scientist on a hot summer day you wish to determine how much ice to buy to add to your cooler which is filled with 36 cans of soda which are warm at 81.7°F. how much ice needs to be added to your cooler
The force stretching the D string on a certain guitar is 170 N. The string's linear mass density is 0.006 kg/m, What is the speed of the waves on the string
In a particluar x-ray tube, an electron approaches the target moving at 1.95 ? 108 m/s. compute the final speed of the electron
At which angle will the photon scatter with respect to its original direction? (The accepted unit abbreviations for angles are either 'deg' for degrees or 'rad' for radians.)
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