Physics, 10.11.2019 02:31 drew1146

Abasketball rolls across a floor without slipping, with its centerof mass moving at a certain velocity. a block of ice of the samemass is set sliding across the floor with the same speed along aparallel line.(a) how do their energies compare? (b) how do their momenta compare? (c) the two objects encounter a ramp sloping upward.

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Answer from: trimommalone4438

In order to understand all three questions one must have knowledge of rotational and transitional motion.

Explanation:

Both energies could be compared by means of their motion,as Ball it self rolling and also moving linearly therefore it has combination of linear and rotational kinetic energy in the mean while block of ice just have linear kinetic energy therefore Basketball have more kinetic energy

$K.E = \frac{1}{2}mV^{2}+\frac{1}{2}I^{2} w$ in case of Basket ball

$K.E = \frac{1}{2}mV^{2}$ in case of Ice

For momentum it is obvious that for basketball their is angular momentum along with linear momentum.

P = m v in case of linear momentum while

L= I w in case of angular momentum where I have rotational inertia and w is the angular velocity

their is no angular momentum in case of an ice block because it was moving in linear motion.

Due to the additional angular momentum conserved in the case of basketball so it has more energy conserved as compared to ice block therefore frictional effect and ramp sloping does not hurt much motion of basketball as compared to ice blocking.

Answer from: Quest

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

Answer from: Quest

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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