What does a pulley system need in order to reduce the force needed to lift an object?
A. exact...
![subject](/tpl/images/cats/fizika.png)
Physics, 06.04.2020 22:08 katiebotts18
What does a pulley system need in order to reduce the force needed to lift an object?
A. exactly one pulley that has a fixed position
B. No pulley system can reduce the force needed to lift an object.
C. at least one movable pulley
D.
a load that is not too heavy
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:50
Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:30
Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 31.08.2019 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.08.2019 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.08.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.08.2019 22:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.08.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.08.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 31.08.2019 22:30
![question](/tpl/images/cats/istoriya.png)
History, 31.08.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.08.2019 22:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.08.2019 22:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.08.2019 22:30