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You wish to create a 3 cm tall image on a screen 45 cm from a 6 cm tall illuminated light bulb.
What focal length lens would you use and where would you place it?
Draw the system below (and also use the space below for your calculations).
A force that varies linearly with time according to a relation F = 4t N is applied to an object travelling with a speed of 16-m/s. If the force decelerates the object to a complete stop in 5s, determine the object's mass. Imagine the force is at f..
a recipe for bread states that the dough must bake for 40 minutes at a temperature of 190degc. the oven you are using
A 1000 kg artillery shell is fired from a battleship. What net external force is exerted on the artillery shell before it leaves the barrel of the gun
An 83 kilogram skier starts at rest 250 meter up the side of a mountain. The skier then travels down the slope until the ground levels out at the bottom. Find the skiers speed at the bottom of the slope
A 4 kg model rocket is launched, expelling 40.00 g of burned fuel from its exhaust at a speed of 550m/s. What is the velocity of the rocket after fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
An LC circuit consists of a 2.87 mH inductor and a 4.85 μF capacitor. Find its impedance at 56.1 Hz.
What is EPEfinal - EPEinitial, which is the change in the electric potential energy?
Mountaineers often use a rope to lower themselves down the face of a cliff (this is called rappelling). They do this with their body nearly horizontal, What tension does his rope need to support
Obtain the magnitude of the magnetic force on a section of wire having a length of 13 cm
Find the x and y components of vector v = (8.0 cm/s, -x direction) (answer should be in cm/s), Find the x and y components of vector d = (4.0 km, 33 degress left of the + y axis)
how high above the target must the rifle barrel be pointed.
A 0.20-kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 4.5 m/s. What is the magnitude of the tension in the string at this position?
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