Physics
Physics, 14.07.2020 21:01, bigcm3497

A camera lens focuses on an object 75.0 cm from the lensThe image forms 3.50 cm behind the lens. What is the magnification of the image?

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 19:10, shazanah95
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
Answers: 1
image
Physics, 21.06.2019 22:50, Jasten
A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!
Answers: 1
image
Physics, 22.06.2019 05:40, izzyisawesome5232
An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
image
Physics, 22.06.2019 13:40, naylorkanari54
Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these
Answers: 1
Do you know the correct answer?
A camera lens focuses on an object 75.0 cm from the lensThe image forms 3.50 cm behind the lens. Wha...

Questions in other subjects:

Konu
Mathematics, 10.03.2020 07:49
Konu
Biology, 10.03.2020 07:49
Konu
Mathematics, 10.03.2020 07:49
Konu
History, 10.03.2020 07:49