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3 years ago

A golf ball has more mass than a tennis ball because it ?

2 answers:

3 0

Most tennis balls are usually hollow, while golf balls are not. Therefore a golf ball contains more mass.

Hope this helps!

Jlenok [28]3 years ago

3 0

A tennis ball is practically air surrounded by structure to form a ball thus having an almost hollow internal portion. In the case of a golf ball, it is concentrated with the material from the inside out. So even though on average a golf ball would be much smaller than a tennis ball, it would have larger mass because of it concentration of solid to its core while in the case of the tennis ball, most of its space is occupied by air which is lighter than the solid of the golf ball.

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If you were in a completely dark room, the room would still be "shining" in this type of light:

Vsevolod [243]

C)infrared is the answer

3 0

3 years ago

Information on caffeine molecules with 3 uses and 3 properties

Setler [38]

Answer:

it's uses

1)To improve mental alertness

2) For treating migraine headaches.

3) It increases the blood adrenaline levels

it's properties

1) It is white, odorless and hygroscopic crystalline solid

2) It tastes bitter

3) It is soluble on water

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4 0

3 years ago

A 21.0 kg child is running at a velocity of 2.50 m/s. The child is carrying a 2.25 kg gallon of milk. What is the momentum of th

KIM [24]

Answer: The momentum of the child and milk together is 58.125 kg.m/s

Explanation:

Momentum is defined as the product of object's mass and velocity.

Mathematically,

$p=mv$

where, p = momentum

m = mass of the object

v = velocity of the object

In the given question, we are given that a child of mass 21.0 kg is carrying a gallon of milk having mass 2.25 kg and running with a velocity of 2.5 m/s. Hence, the momentum by both milk and child will be:

$p=(m_{child}+m_{milk})v$ ....(1)

Given:

$m_{child}=21.0kg\\m_{milk}=2.25kg\\v=2.5m/s\\p=?kg.m/s$

Putting values in equation 1, we get:

$p=(21+2.25)kg\times 2.5m/s=58.125kg.m/s$

Hence, the momentum of the child and milk together is 58.125 kg.m/s

7 0

3 years ago

I’m really bad at science and i need to know how to define it

postnew [5]

It is a column of elements in the periodic table of the chemical elements.

5 0

3 years ago

Vsevolod [243]

Answer:

2 half-lives=0.8

6 half-lives= 0.05

Explanation

Half-lives are constant and always decrease by half, implying that the concentration decreases by half at a consistent rate.

3.2/2= 1.6/2= 0.8 is two half-lives

3.2/2= 1.6/2= 0.8/2= 0.4/2= 0.2/2= 0.1/2=0.05 is six half-lives

3 0

3 years ago