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Physics Problems

Physics Problems is an excellent online study resource for students. It is an exhaustive collection of solved examples and answers for physics problems and questions.

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Students can get online tutors who can help them understand the concepts and the logic behind the answers for Physics Questions. They can also get help with their homework problems in physics and other assignment questions related to Physics. The online physics tutors are expert in their subjects who can help the students  in solving all their queries. One can also get physics homework help from our tutors.

Physics problems cover all the important topics under physics for various grades. The students can get grade-specific help with their physics problems. The students can learn by observing the solved examples. They can understand the concepts step by step, therefore, they would be able to solve physics problems on their own. They can even learn about the topics in depth and practice problems on physics which in turn will help them to prepare for their exams.

 

Physics Problems and Solutions

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Physics questions and answers are an entire list of solved problems and questions about physics concepts. The students can get the list of frequently asked questions of various physics topics. The following are some physics topics which are covered under the physics problems:

Physics Classroom Examples

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Here are some physics classroom examples for students:

Solved Examples

Question 1: A car moving with a velocity of 18 kmph is brought to rest in a distance of 0.5 km by applying brakes. Find its retardation?
Solution:

 
Initial Velocity of the car = u = 18 kmph = 5 ms-1,
Final Velocity of the car = v = 0,
Distance travelled = S = 0.5 km = 500m
We have, v2 = u2 + 2as.
             0 = 52 + 2
×

a × 500
               = 25 + 1000a.
          -25 = 1000a,
             a = -0.025 ms-2.
∴

Retardation of the car = 0.025ms-2.
 

Question 2: A Heat engine operates with reservoir temperature between 900 K and 500 K. Calculate its efficiency?
Solution:

 
T1 = 900 K,
T2 = 500 K,
Efficiency
η

= 1 – T2

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