Mathematics

Mathematics, 19.09.2019 14:30, 19elbatawisaly

Kinetic energy, k, equals the product of 1 2 , the mass of an object, m, and the square of its velocity, v. write a formula for kinetic energy. then solve your formula for v.

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Physics, 25.07.2019 03:30, esdoles3865

The kinetic energy, k, of an object with mass m moving with velocity v can be found using the formula - e_{\text{k}}={\tfrac {1}{2}}mv^{2} . a scientist measured the velocity of a 5-kilogram object and a 20-kilogram object in an experiment. if the velocity of the 5-kilogram object was twice the velocity of the 20-kilogram object, what was the ratio of the kinetic energy of the 5 kilogram object to the kinetic energy of the 20-kilogram object?

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Physics, 07.10.2019 20:10, rissacoob7862

In physics, kinetic energy is the energy of an object in motion. kinetic energy, kkk, measured in joules (\text{j})( j, ), is calculated using the formula k =\dfrac{1}{2}mv^2k= 2 1 mv 2 k, equals, start fraction, 1, divided by, 2, end fraction, m, v, start superscript, 2, end superscript, where mmm is the mass of the object, measured in kilograms (\text{kg})( k, g, ), and vvv is the velocity of the object, measured in meters per second (\text{m}/\text{s})(m/ m, slash, s, ). rearrange the formula to solve for mass (m)( m, ). m=m=m, equals what is the mass of an object with a kinetic energy of 200{,}000\text{ j}200,000 j200, comma, 000, space, j and a velocity of 40 \text{ m}/\text{s}40 m/s40, space, m, slash, s? round your answer, if necessary, to the nearest hundredth. m=m=m, equals \text{kg}kgk, g

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Mathematics, 19.10.2019 16:10, famouzgal

In physics, the kinetic energy of a moving object is given by the formula k=1/2mv^2 where m is the mass of the object and v is the object's velocity. suppose a rocket is increasing in velocity at 10m/sec^2, and is decreasing in mass at 15kg/sec because it is using up fuel. how fast is it's total kinetic energy changing when the velocity is 30m/sec and the mass is 1000kg? round to the nearest tenth.

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Physics, 24.10.2019 01:50, maryjane8872

The rotational kinetic energy term is often called the kinetic energy in the center of mass, while the translational kinetic energy term is called the kinetic energy of the center of mass. you found that the total kinetic energy is the sum of the kinetic energy in the center of mass plus the kinetic energy of the center of mass. a similar decomposition exists for angular and linear momentum. there are also related decompositions that work for systems of masses, not just rigid bodies like a dumbbell. it is important to understand the applicability of the formula ktot=kr+kt. which of the following conditions are necessary for the formula to be valid? check all that apply. a. the velocity vector v must be perpendicular to the axis of rotation. b.the velocity vector must be perpendicular or parallel to the axis of rotation. c.the moment of inertia must be taken about an axis through the center of mass.

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Kinetic energy, k, equals the product of 1 2 , the mass of an object, m, and the square of its veloc...

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