3 years ago

If the ice cube absorbs heat, then, heat

Physics

1 answer:

Rashid [163]3 years ago

5 0

Answer:

<h2><em>I have no idea what any of that means </em>:'(</h2>

Explanation:

<h2><em>So Sorry. ΓΟΛ3</em></h2>

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You work in a materials testing lab and your boss tells you to increase the temperature of a sample by 37.1 ∘c . the only thermo

Ivahew [28]

Each Celsius degree is the size of 1.8 Fahrenheit degrees. So you need dip your Fahrenheit thermometer into the sample, see where you're starting, and then warm it up to a temperature that reads (37.1 x 1.8) = 66.8 Fahreheit degrees higher.

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3 years ago

A _____ line on a typical Speed vs. Time graph means an object is experiencing a constant speed.

stepladder [879]

D.horizontal has better speed

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4 years ago

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How is a charged object created?

Sever21 [200]

Answer:

Charges are transferred from one object to another.

Explanation:

The charges from one object to another are sharing there energy.

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3 years ago

A 5.00 kg dog runs towards a skateboard with a speed of 2.50 m/s. The skateboard is initially at rest. The dog jumps onto the sk

ladessa [460]

Answer:

The mass of the skateboard is 1.25 kg.

Explanation:

We have,

Mass of dog, m = 5 kg

Initial speed of dog, u = 2.5 m/s

Initial speed of skateboard, u' = 0 (at rest)

The dog jumps onto the skateboard and both the dog and skateboard move with a speed of 2.00 m/s. It is the common speed of the dog +skateboard, V = 2 m/s. We need to find the mass of the skateboard. Using conservation of momentum as :

$mu+m'u'=(m+m')V$

m' is mass of skateboard

$5\times 2.5=(5+m')2\\\\m'=1.25\ kg$

So, the mass of the skateboard is 1.25 kg.

6 0

3 years ago

A mass weighing 4 pounds is attached to a spring whose constant is 2 lb/ft. The medium offers a damping force that numerically e

Neko [114]

Answer:

the time at which it passes through the equilibrum position is:

t = 0.1 second

Explanation:

given

w= 4pounds

k(spring constant) = 2lb/ft

g(gravitational constant) = 10m/s² = 32ft/s²

β(initial point above equilibrum) = 1

velocity = 14ft/s

attached is an image showing the calculations, because some of the parameters aren't convenient to type.

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3 years ago