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A 3.0cm object is placed 8.0cm in front of a mirror. The virtual image is 4.0cm further from the mirror when the mirror is concave than when it is planar.
1. Decide the focal length of the concave mirror.
2. Decide the image height in the concave mirror.
A 70 g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm before it comes to rest. how much does the temperature of the block rise
a sailboat is being propelled westerly by the wind at a speed of 4 ms. if the current is flowing at 2 ms to the
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. how fast is the positron moving
write a problem containing at least three forces of different magnitudes and directions which results in a constant
Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. how many TOTAL number of maxima can be seen
A 35.0 kg person crawls across a 15.0 m long horizontal beam that has a mass of 15.0 kg. The beam has a support line that is at an angle of 65 degrees up from the horizontal.
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 570nm
If the radius of the equipotential surface of point charge is 13.5 m at a potential of 2.10 kV, what is the magnitude of the point charge creating the potential
A grocery cart is pushed along an aisle by a shopper who exerts a constant horizontal force of . The acceleration of gravity is . If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart’s final s..
A 2.0 ? resistor is connected across a 6.0 V power supply. An ammeter with internal resistance of 1.0 ? is used to measure the current in this circuit. What is the ammeter reading
The electric potential at x = 3.0 m is 120 V, and the electric potential at x = 5.0 m is 190 V. What is the electric field in this region, assuming it's constant? -140 N/C 140 N/C -35 N/C 35 N/C 75 N/C.
a pendulum consists of a 1.6-kg bob attached to a light 3.0-m-long string. while hanging at rest with the string
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