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vampirchik [111]
3 years ago
6

A 0.5 kg yellow bouncy ball rolls to the right at a speed of 8 m/s while a 0.25 kg blue bouncy ball rolls

Physics
1 answer:
inessss [21]3 years ago
3 0

Explanation:

Let yellow ball be m1 = 0.5kg with u1 = 8 m/s and blue ball be m2 = 0.25 kg with u2 = - 4 m /s respectively.

After collision, blue ball travels 12 m/s.

<u>Using conservation of Linear Momentum</u> :

m1u1 + m2u2 = m1v1 + m2v2

0.5* 8 + 0.25 * - 4 = 0.5 * v1 + 0.25 * 12

v1 = 0 m/sec i.e. <u>Yellow ball comes to rest</u>.

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The largest building in the world by volume is the boeing 747 plant in Everett, Washington. It measures approximately 632 m long
Schach [20]

Explanation:

Given that,

The dimensions of the largest building in the world is 632 m long, 710 yards wide, and 112 ft high. It basically forms a cuboid. The volume of a cuboidal shape is given by :

Since,

1 meter = 3.28084 feet

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1 yard= 3 feet

710 yards = 2130 feet

V = lbh

V=2073.49 \ ft\times 2130\ ft\times 112\ ft

V=494651774.4\ ft^3

V=4.94\times 10^8\ ft^3

Also,

V=(4.94\times 10^8\ ft^3)(\dfrac{1\ m}{3.281})^3

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Hence, this is the required solution.

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4 years ago
Explain why water, with its high specific heat capacity, is utilized for heating systems such as hot-water radiators.
Lubov Fominskaja [6]

Answer:

Answer in explanation

Explanation:

Water is mainly used as coolant in heating systems like hot-water radiators. The main function of water in such systems, is to absorb as much heat as possible, in order to decrease the temperature of the system and as a result cool it.

The specific heat capacity is the measure of heat energy that is required to raise the temperature of unit mass of a substance through 1 °C. In other words, specific heat capacity quantifies the amount of heat that can be stored by a unit mass of a substance having a degree rise in temperature.

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5 0
4 years ago
Which two actions best demonstrate taking responsibility?
kow [346]

Answer:

Leading your people into the right direction, and always knowing what is best for  you and your people.

Explanation:

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3 years ago
An apple is dropped from the top of a building and hits the ground 2 seconds later. How tall is the building?
Ket [755]

Hello! :)

\large\boxed{19.6 m}

Use the kinematic equation below to solve for the height of the building:

d = \frac{1}{2} at^{2}

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a = acceleration due to gravity (9.8 m/s²)

t = time (seconds)

Plug in the given values into the equation:

d = \frac{1}{2} (9.8)2^{2}\\\\d = \frac{1}{2} (39.2)\\\\d = 19.6 m

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3 years ago
What do radio waves and microwaves have in Common?
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