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Physics
Physics
College
a barge is pulled down the canal by a horse walking beside it, if the rope angle is 60.0 degrees, the force exterted is 400N and the barge being pulled is 100N how much work did the horse do
Physics
High School
When there are two light sources then there will be two shadows. Given below is a case where there are two light sources but one of the light sources is brighter than the other. Can you tell which shadow will be darker? Give explanation.
Physics
High School
The property of matter that describes what it is made of
Physics
College
A marble rolls 269cm across the floor with a constant speed of in 44.1cm/s.
Physics
College
express forty meters with four significant figures
Physics
High School
While riding her bike, Maria averaged a velocity of 20 m/s. If she maintains that a velocity for a time of 20 seconds, how far does she ride?
Physics
High School
A certain atom has eight protons, eight electrons, and eight neutrons. How many nucleons does this atom have? What is the atomic number of this atom? What is the mass number of this atom?
Physics
High School
Help me pleaseee!!!!!
Physics
High School
An object is moving along a straight line. The graph shows the velocity of the object overtime.What is the instantaneous acceleration of the object at time = 9.5 seconds?A.-20 m/s2B.0 m/s2C.20 m/s2D.-10 m/s2
Physics
College
a torch battery produces electricity from energy
Physics
College
What do the elements in group 17 of the periodic table have in common
Physics
High School
Why did Archimedes shout eureka what did he find out?
Physics
High School
If a questions says "at what point does the ball stop?" what is it asking for?
Physics
High School
is the value of resistance the same for all materials?
Physics
College
The diagram below shows a star map. Which position would a planet most likely be at? A, B, C, or D?
Physics
College
The bonds between molecules store ____ Energy?
Physics
High School
How long would it take you too run the 100m sprint if from rest you accelerate at 2m/s/s for the whole race?
Physics
High School
a. How can a spinning ball have more lift than one that is not spinning?
Physics
College
A 3.7-mm-diameter wire carries a 20 A current when the electric field is 8.2102 V/m . What is the wire's resistivity? (in m)
Physics
College
Personal behavior is the only factor that determines if a person becomes ill.Please select the best answer from the choices provided.OF
Physics
High School
For writing a scientific lab report, when you write the discussion do you need to include every single result in your data? Or do you just include a summary of your data?
Physics
High School
What is one example of thermal energy
Physics
College
what would happen to life on earth if all the plants died? plz help
Physics
College
Derrick crawls 4 feet south, and then turns east and crawls 6 feet.What distance did he cover?What was his displacement?
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