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3 years ago

If a golf ball and a bowling ball are rolling at the same speed, the _________ ball has a greater momentum.

Physics

2 answers:

koban [17]3 years ago

8 0

<u>Answer:</u> Bowling ball has a greater momentum than a golf ball.

<u>Explanation:</u>

Momentum is defined as the product of mass and velocity of an object. Mathematically,

$p=mv$

where,

p = momentum of the object

m = mass of the object

v = velocity of an object

Momentum is directly dependent on mass and velocity of the object.

We are given that both the balls are moving with the same speed which means that the velocity of both the balls are same. So, the momentum will be dependent on mass of the ball only.

The ball having greater mass will have higher momentum than the ball having less mass.

As, mass of bowling ball is very high than the mass of the golf ball. Thus, it will have greater momentum.

Elis [28]3 years ago

6 0

If a golf ball and Bowling ball are rolling at the same speed, the bowling ball would have greater momentum.

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An object is moving with an initial velocity of 6.5m/s. It is then subject to a constant acceleration of 2.1m/s^2 for 14s. How f

alina1380 [7]

Answer:

Distance travel s = 296.8 m

Explanation:

Given:

Initial velocity u = 6.5 m/s

Constant acceleration a = 2.1 m/s²

Time T = 14 s

Find:

Distance travel s

Computation:

s = ut + (1/2)at²

s = (6.5)(14) + (1/2)(2.1)(14)²

s = 91 + 205.8

Distance travel s = 296.8 m

4 0

3 years ago

A gas initially at 2.8 bar and 60oC is compressed to a final pressure of 14 bar in an isothermal internally reversible process.

Gekata [30.6K]

The work and heat transfer isothermal internally reversible process.

An isothermal procedure is a thermodynamic procedure in which the temperature of a gadget stays consistent. The transfer of heat into or out of the gadget occurs so slowly that thermal equilibrium is maintained. The melting of ice at 0 diploma is an example of isothermal technique. The reaction in a warmth pump is an example of isothermal manner. In Isothermal manner temperature is constant for the duration of the procedure and follows Boyles regulation.

Given,

Gas at initially P1= 2.8 bar

P2 = 14 bar

isothermal reversible process,

Compressed pressure at 60°C

(a) R = 134a

For Refrigerant 134a R134a

At P1 = 14 bar T1 = 600C

S1 = 0.9389 KJ/Kg K

V1 = 264.64 KJ/kg

P2 = 2.8 bar T2 = 600C

S2 = 1.1142 KJ/Kg K

V2 = 278.56 KJ/kg

T = 60 + 273 = 333K

Q= 2 Tds

2 Q=T ſ ds

= T(S2-S1)

= 333 ( 1.1142 - 0.9389 )

= 58.3749 KJ/Kg

Heat transfer Q = 58.3749 KJ/Kg

(b) air as an ideal gas.

Q= 2 Tds

2 Q=T ſ ds

= T(S2-S1)

=T-R In P2 P1

= 333 * -0.287 In 2.8 14

= 153.81 KJ/Kg

Heat transfer Q = 153.81 KJ/Kg

W = Q - ΔV

= 28.3749 - (278.56-264.64)

= 14.4549 KJ/Kg

Work W = 14.4549 KJ/Kg

Learn more about isothermal process here:-brainly.com/question/17097259

#SPJ4

8 0

2 years ago

Distinguish between endangered and extinct species.

Julli [10]

Answer and Explanation:

The distinction between Endangered species and Extict species is Given as under:

Endangered Species:

Endangered species are categorized as those species of flora and fauna which are on the verge of extinction if not provided timely protection in order to save them from getting extinct.

Some of the endangered species are African Penguin, Bengal Tiger, Blue Whale, etc

Extinct Species:

Those species of Flora and Fauna which have vanished completely or either from the wild i.e., that individuals of that species are not alive any more and have completely disappear from the earth.

In practice, if a species is not seen for over a period of 50 years it is considered to be extinct.

Some of the extinct species are Dodo, Passenger Pigeon, Great Aulk, etc.

7 0

4 years ago

At a time when mining asteroids has become feasible, astronauts have connected a line between their 3740-kg space tug and a 5690

Gwar [14]

Answer:

61.4 s

Explanation:

The distance d₁ traveled by the asteroid:

$d_1=\frac{1}{2}a_1t^2$