If a neighbor pushes a lawnmower four times as far as you do but exerts only
half the force, w...
![subject](/tpl/images/cats/fizika.png)
Physics, 05.11.2019 23:31 jennyhoang4330
If a neighbor pushes a lawnmower four times as far as you do but exerts only
half the force, which one of you does more work and by how much ?
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:00
Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:30
Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/istoriya.png)
History, 25.12.2019 21:31
![question](/tpl/images/cats/biologiya.png)
Biology, 25.12.2019 21:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 25.12.2019 21:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.12.2019 21:31
![question](/tpl/images/cats/istoriya.png)
History, 25.12.2019 21:31
![question](/tpl/images/cats/mat.png)
Mathematics, 25.12.2019 21:31
![question](/tpl/images/cats/mat.png)
Mathematics, 25.12.2019 21:31
![question](/tpl/images/cats/istoriya.png)
History, 25.12.2019 21:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 25.12.2019 21:31
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/en.png)
English, 25.12.2019 21:31