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Two plane mirrors are facing each other they are parallel 3.00 cm apart and 17.0 cm in length a laser beam is directed at the top mirror from the left edge of the bottom mirror what is the smallest angle of incidence with respect to the top mirror such that the laser beam (a) hits only one of the mirrors and (b) hits each mirror only once.
The arm in the figure below weighs 43.7 N. The force of gravity acting on the arm acts through point A. Determine the magnitude of the tension force Ft in the deltoid muscle
The density of a 3.61 m long rod can be described by the linear density function lambda(x) = 103 g/m + 10.3x g/m^2. determine the center-of-mass coordinate
An ideal gas occupies 0.14 m3 at an absolute pressure of 1.2×105 Pa and temperature 280 K, How many moles of gas are there
An electron with a speed of 6.00*10^6 m/s collides with an atom The collision excites the atom from its ground state (0eV( to a state with an energy of 3.70 eV. What is the speed of the electron after the collision?
A 0.19-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 20 N. Find the tension in the stick
A convertible travels down a straight, level road at a slow speedof 13 km/h. Where is the car when the ball lands
question a 500 g ball swings in a vertical circle at the end of a 1.4-m-long string. when the ball is at the bottom of
a gun has a barrel velocity of 400 meters per second. at what angle would the gun have to be fired for the bullet to
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. how much is on the outer surface of the car
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to 14 before coming to rest momentarily? answer in m/s.
After a day of testing race cars, you decide to take your own 1580kg car onto the test track. While moving down the track at 10.0 m/s, you uniformly accelerate to 28m/s in 10 s. What is the average net force that you have applied to the car throug..
we all sound like great singers in the shower due to standing waves. assume that your shower is 2.50m about 8.22 ft
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