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An object is placed in front of a converging lens in such a position that the lens (f = 16.0 cm) creates a real image located 27.0 cm from the lens. Then, with the object remaining in place, the lens is replaced with another converging lens (f = 18.0 cm). A new, real image is formed. What is the image distance of this new image?
What is volume concentration
Suppose two vectors each have length 3.0 units. if the two vectors are perpendicular to each other, what is the resultant vector length
a block, m= 3 kg, slides on a frictionless horizontal surface.It then goes up a 15 degree incline having a coeffecient offriction uk=0.30 a distance L before stopping. find the acceleration of the block on the plane
A 2 kg block is pulled by the rope on the horizontal surface by a 3N force. The coefficient of the static friction (?s) equals 0.3. Calculate the force of static friction acting on the block
You are looking down at the earth from inside a jetliner flying at an altitude of 9440 m. The pupil of your eye has a diameter of 1.96 mm. Decide how far apart two cars must be on the ground if you are to have any hope of distinguishing among them in..
a cd has a playing time of 47.4 minutes. when the music starts the cd is rotating at an angular speed of 512
1 potential difference an electron is accelerated through a potential difference of 2.2 kv and directed into a region
question how many electrons must be removed from each of two 4.6-kg copper spheres to make the electric force of
An object weighing 32 lb is released from rest 50 ft above the surface of a calm lake. Before the object reaches the surface of the lake, the air resistance (in lbs) is given by 2v, where v is the velocity (in feet per second).
Two bars of identical mass are at 29 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/ (kg • C°).
a 2.67-f and a 4.20-f capacitor are connected in series across a 25.0-v battery. a 8.24-f capacitor is then connected
A wodden raft has a density of 0,5*10^3kg/m^3 and dimension of 3,05m*6,1m*0,305m. How deep does it sink into the water when unloaded
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