A uniform speed is 0.45.
<u>Solution:</u>
F = mv^2/r
r = 0.2m
v = 0.75 m/s
m = 0.160 kg
F = 0.16*(0.75)^2/0.2 = 0.45.
If you spin a ball with a string or spin a lasso pulling on the rope will pull the object toward the center. Centripetal force is provided by the frictional force between the ground and the wheels as the car turns. A force acting on a moving object at an angle to the direction of motion that tends to cause the object to follow a circular or curved path.
The gravitational force acting on an orbiting satellite is an example of a centripetal force. The friction of a car's tires while cornering similarly exerts a centripetal force on the car. Satellites orbit around the earth due to the gravitational pull of the earth. Movement of electrons around the nucleus. Movement of the blades of the windmill. The tip of the second-hand watches with circular dials exhibits a smooth circular motion.
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Answer:
Explanation:
velocity=s/t
given distance is 480 km we have to convert it into meter because the unit of distance is meter
1 km=1000 m
480 km=480000 m =4.8*10^5
1 hour= 3600 s
12 hour =43200 s
now velocity=s/t
v=4.8*10^5/43200
v=11.11 m/s
Answer:
the workenergy principle is measured in joules
Lenz's Law: The polarity of the induced emf is such that it produces a current whose magnetic field opposes the change in magnetic flux through the loop.
To build a model of PCl3, you need two colors of ball. One color will represent each atom. Three balls will be the of one color and one ball will be of a different color.
A model is a visual representation of something that exists in reality. The purpose of a model is to aid a person to conceptualize a given fact.
A molecular model of PCl3 is a visual representation of the molecule. If we have two colors of ball, three of one color and one of a different color, we can have a model of PCl3.
In this model, the three balls of the same color represents chlorine atoms while the lone ball of a different color represents the phosphorus atom.
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