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1 the formula of the ionic compound that forms from two ions a2and r5- can be written as axry what is the value of x2 a
a steel cable with total length 26 m and mass 140kg is connected to two poles the tension in the cable is 6521 n and
four 70-kgspheres are located at the corners of a square of side 050m calculate the magnitude of the gravitational
please explain how to find maximum height for a projectile motion say for example if from left to right a ball is
a golfer hits a ball on a level fairway at an angle of 40 degrees relative to the horizontal and it lands on the green
air resistance the resistance to motion in air is often ignored when modeling systems on earth however when objects are
peter drops a stick of dynamite down another deep hole near spruce mountain he times it from the moment he lets go and
what is the purpose of wires in a circuit why do we use wires to connect power supplies to resistors or other objects
what is the equation to find the equivalent resistance req of two resistors in series r1 and r2 choose one of the four
describe the basic concept behind transducers and then describe the functions specific to ultrasound
one side of the roof of a building slopes up at365deg a roofer kicks a round flat rock that has been thrown onto the
resonance is a process of maximum transfer of energy between two systems one is the source and the other the receiver
what is the lens equation write it downimagine i give you a lens that focuses light coming from very far away into an
electrons on a radio broadcasting tower are made to oscillate up and down an antenna at 535000 each second show that
if you fire a bullet through a board it will slow down inside and emerge at a speed that is less than the speed with
a person on a haz mat team will be working for 15 hr while breathing oxygen from a pressurized tank while working they
for a car traveling at a certain speed it is possible to bank a curve at just the right angle so that no friction is
please help me with these physic study questions1 identifying the vectors and scalar quantities from the following list
a man pushes a lawn mower on a level lawn with a force of 212n if 41 of this force is directed downward how much work
three charges are located in the corners of the right triangle as shown below the sphere charges are q110nc q240 and
a bear leaves its den and begins foraging for food it takes 20 minutes to move 12 km north then spends 42 minutes
a hiker walks along the city streets 7 km north then 6 km east what is the direction of the displacement vector in
irina standing on the edge of a cliff throws a stone at 40 degree angle above the horizontal with an initial speed of
a particle moves in the xy-plane acted on by a conservative force described by the potential energy uxy 2x2 8y2 12xy
a hiker walks along the city streets 6 km north then 4 km east what is the magnitude of the resulting displacement