4 years ago

Which substance will float in corn syrup

Physics

2 answers:

ValentinkaMS [17]4 years ago

7 0

<span>graphite (2.16 g/cm3) glycerin (1.26 g/cm3) copper (8.9 g/cm3) silver (10.5 g/cm3

</span>

slega [8]4 years ago

6 0

Anything with less mass or density

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Two vectors are illustrated in the coordinate plane.

oksano4ka [1.4K]

Answer: (-4.3, 2.5)

Explanation:

In the second quadrant, magnitude of the vector is 5 and angle is 30° from the negative x-axis.

We can write this in terms of its components:

$-5 cos 30^o \hat i + 5 sin 30^o\hat j$

$-4.3\hat i+2.5 \hat j$

Thus, the components of vector in the second quadrant are (-4.3, 2.5)

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3 years ago

At a certain moment, a car travelling at 40mph begins braking for a railroad crossing. Assume thatthe acceleration is constant (

egoroff_w [7]

Answer:

Part a)

$v_f = 17.88 - (0.15) t$

Part b)

$d = 1072.8 m$

Explanation:

As we know that initial speed of the car is

$v = 40 mph$

$v = 40 \times (\frac{1609}{3600})$

$v = 17.88 m/s$

now we have

$v_f = v_i + at$

$0 = 17.88 + a(120)$

$a = -0.15 m/s^2$

Part a)

As we know that acceleration is constant here

so we have

$v_f = v_i + at$

$v_f = 17.88 - (0.15) t$

Part b)

distance moved by the car is given as

$d = \frac{v_F + v_i}{2} t$

now we have

$d = \frac{0 + 17.88}{2}(120)$

$d = 1072.8 m$

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3 years ago

When kinetic energy transfers from one particle to a another, this is called

saw5 [17]

Answer:

Conduction is the transfer of kinetic energy from one particle to another

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3 years ago

Earth's moon orbits Earth at a mean distance of 382,508,576 m. What is the moon's orbital speed? Earth's mass is 5.972x1024 kg.

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I think 1.022 or 1

Explanation:

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2 years ago

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zvonat [6]

I think it's 150 million kilometers/93 million miles.

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