Physics, 27.12.2019 04:31 sarahabuadas532

Awad of clay with a mass, m, of 1.5 kg is initially moving with a horizontal velocity of 3 m/s when it strikes and sticks to an initially stationary uniform slender bar with a mass of 11 kg (m) and total length, l, of 7 m. determine:

Answers: 2

Show answers

Answers

To solve this question, we need to know the angle and the position at which the clay hits the bar. I will denote the angle as ∅ and the position from the pivot as 'r'.

We will use the conservation of angular momentum.

$L_1 = L_2\\mvr\sin(\phi) = I\omega\\mvr\sin(\phi) = (\frac{1}{3}ML^2 + mr^2)\omega\\(1.5)(3)(r)\sin(\phi) = (\frac{1}{3}(11)(7)^2 + (1.5)(r)^2)\omega\\\omega = \frac{4.5r\sin(\phi)}{179.6 + 1.5r^2}$

The linear impulse is equal to the change in the linear momentum. The horizontal component of the angular momentum is calculated above. The vertical component of the initial angular momentum is ineffective, because its torque is zero. However, the linear impulse can be calculated.

$\vec{J} = \vec{P}_2 - \vec{P}_1\\\vec{J} = 0 - mv\cos(\phi)\\\vec{J} = -4.5\cos(\phi)$

Explanation:

After the collision both masses are combine, so the moment of inertia of the combined object can be calculated by adding the moment of inertia of both objects.

Answer from: Quest

the answer is kevlar

Answer from: Quest

-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

Other questions on the subject: Physics

Physics, 22.06.2019 05:00, hannahhoskings6989

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

Answers: 1

continue

Physics, 22.06.2019 06:00, Catgirl7060

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Answers: 1

continue

Physics, 22.06.2019 11:10, axxpjr12

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Answers: 3

continue

Physics, 22.06.2019 21:00, SmokeyRN

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this

Answers: 2

continue

You know the right answer?

Awad of clay with a mass, m, of 1.5 kg is initially moving with a horizontal velocity of 3 m/s when...