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A projectile is fired with a speed of |v| = 60 m/s at angle of 60 degrees. A second projectile is then fired with the same speed 0.5 s later. Determine the angle of the second projectile so that the two projectiles collide. At what position (x,y) will this happen?
express the potential difference between the plates.
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
A batter hits a pitched ball when the center of the ball is 1.24 m above the ground.The ball leaves the bat at an angle of 45° with the ground. find the distance between the fence top and the ball center
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 5.6 µm. 1) What is the dipole moment of this pair of charges?
The highest string on a guitar has a vibrating length of 60 cm and a vibrating mass of 0.9 g. What is the wavelength of the waves on the string
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
1. how can you determine the activity of a radioactive source?2. do you expect efficiency to be good or bad for each of
A long cylindrical tube of length L, and density ?t, is very slightly weighted on one end so that it floats upright in a fluid having density, determine the period of the oscillation in terms of L, t, and f
An iron-core solenoid is 43cm long and 1.7cm in diameter, and has 720 turns of wire. What is the permeability %u03BC at this high field strength
if the electric field inside a capacitor exceeds the dielectric strength of the dielectric between its plates the
A boy in a wagon is moving at 3.1 m/s east when another boy begins pulling on the wagon in the direction opposite to its motion at 1.25 m/s^2. (a) How long does it take to give the wagon a velocity of 7.4 m/s west? (b) How far from the starting po..
A solenoid is 8.93 cm long, 1.56 cm in diameter, and has 310 turns. find the magnetic flux through one turn of the solenoid
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