Afelt-covered beanbag is fired into a empty wooden crate that sits on a concrete floor and is open on one side. the beanbag is moving exactly horizontally when it strikes and sticks to the inside wall of the crate, which is lined with velcro. as a result of this impact, the crate slides backwards 0.935 meters along the concrete, which has a coefficient of kinetic friction of \mu_k = 0.480μ k =0.480. the beanbag has a mass of 0.354 kg and the empty crate has a mass of 3.77 kg. calculate the speed of the beanbag vv at the moment it strikes the crate. you may neglect the effect of air resistance.

31.42383 m/s

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

= Coefficient of kinetic friction = 0.48

s = Displacement = 0.935 m

= Mass of bean bag = 0.354 kg

= Mass of empty crate = 3.77 kg

= Speed of the bean bag

= Speed of the crate

Acceleration

From equation of motion

In this system the momentum is conserved

The speed of the bean bag is 31.42383 m/s

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this

its c i just checked it