Please select a subject first
Advertisements
Advertisements
A 50 N collar slides without friction along a smooth and which is kept inclined at 60o to the horizontal.
The spring attached to the collar and the support C.The spring is unstretched when the roller is at A(AC is horizontal).
Determine the value of spring constant k given that the collar has a velocity of 2.5 m/s when it has moved 0.5 m along the rod as shown in the figure.
Concept: Principle of Work and Energy
b)A cylinder has a mass of 20kg and is released from rest when h=0 as shown in the figure.Determine its speed when h=3m.The springs have an unstretched length of 2 m.Take k=40 N/m.
Given : m=20 kg
h=0
k=40 N/m
To find : Speed when h=3m
Concept: Principle of Work and Energy
Just before they collide,two disk on a horizontal surface have velocities shown In figure.
Knowing that 90 N disk A rebounds to the left with a velocity of 1.8 m/s.Determine the rebound velocity of the 135 N disk B.Assume the impact is perfectly elastic.
Concept: Law of Conservation of Momentum
What are the main causes of soil degradation?
Concept: Introduction to Depletion of Natural Resources
How increasing population is exerting extra pressure on land and mineral resource discuss.
Concept: Global Crisis Related to – Population, Water, Sanitation and Land
What do you mean by land filling? Explain briefly.
Concept: Global Crisis Related to – Population, Water, Sanitation and Land
Explain case study of kedarnath.
Concept: Definition, Scope and Importance of Environmental Study
Explain depleting nature of forests: causes, effects and prevention.
Concept: Introduction to Depletion of Natural Resources
Write a short note on ‘Water crisis’.
Concept: Global Crisis Related to – Population, Water, Sanitation and Land
What is ecological succession?
Concept: Concept of Ecological Succession and Its Impact on Human Beings
Explain global environmental crisis pertaining to population.
Concept: Global Crisis Related to – Population, Water, Sanitation and Land
Explain the causes and effects of depletion of natural water resourecs.
Concept: Introduction to Depletion of Natural Resources
What are the reasons for depletion of soil resources?(What are the reasons for depletion of soil resources?
Concept: Introduction to Depletion of Natural Resources
Why there is need for public awareness on environmental education.
Concept: Need for Public Awareness of Environmental Education
Write important features of case study on Narmada Bachao Andolan, took place in Gujrat in1980.
Concept: Definition, Scope and Importance of Environmental Study
What is ecological succession? What is its impact?
Concept: Concept of Ecological Succession and Its Impact on Human Beings
Explain the reason and effects of depletion of natural forest resources.
Concept: Introduction to Depletion of Natural Resources
Discuss the role for 3R in sustainable development.
Concept: Social, Economical and Environmental Aspects of Sustainable Development
Explain Environmental aspects of sustainable development.
Concept: Social, Economical and Environmental Aspects of Sustainable Development
Explain Environmental Impact Assessment (EIA).
Concept: Social, Economical and Environmental Aspects of Sustainable Development
