Physics, 13.10.2019 18:30 alyssashae1818
Which statement best describes the effects of drought, desertification, and erosion on the people who live in the sahel on the edge of the sahara desert?
a)these factors have led to warfare between tribes in the region. b)these factors have caused a great migration of people from the region. c)these factors have caused the united nations to declare the region endangered. d)these factors have led to hunger in the region because of a lack of arable land.
Answers: 2
Physics, 21.06.2019 16:20
Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors
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Physics, 21.06.2019 19:30
Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is
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Physics, 21.06.2019 19:30
The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.
Answers: 3
Physics, 22.06.2019 16:20
How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answers: 2
Which statement best describes the effects of drought, desertification, and erosion on the people wh...
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