What is the density of a block of marble that
occupies 287 cm3
and has a mass of 816 g?
Answer in units of g/cm3
.

Answer: Matter is how much space or opacity an object takes up. In short anything that take up space. Things like balls, trees, and even people are all made of matter. Mass is how much matter a object has. Air also has mass also, even though we can't see it. Things like cars, buildings, even planets have mass.

Explanation: Paragraphs are sometimes 4-6 sentences.

Answer:

The metals are to the left of the line (except for hydrogen, which is a nonmetal), the nonmetals are to the right of the line, and the elements immediately adjacent to the line are the metalloids.

Explanation:

In Physics, many quanitties are the function of other quanitities.

For instance in kinematics, where the displacement (s), position (x), velocity (v) and time (t) of a particle are related.

Suppose the position of a particle can be descirbed as a function of time, i.e.

[tex]x=f(t)[/tex]

then since velocity is the rate of change of position, we write

[tex]v=\dfrac{d}{dt}f(t)=f'(t)[/tex]

which is the derivative of the poisiton/ time function.

On the other hand, the displacement of the particle is the sum of position changes over time, so the displacement can be defined by

[tex]s=\int^{t_1}_{t_0}f(t)dt[/tex]

which is the integration of postion/ time function.

His total displacement from his original position is -1 m

We know that total displacement of an object from a position x to a position x', d = final position - initial position.

d = x' - x

If we assume the lad's initial position in front of her house is x = 0 m. The lad then moves towards the positive x-axis, 5 m. He then ends up at x' = 5 m. He then finally goes back 6 m.

Since displacement = final position - initial position, and his displacement is d' = -6 m (since he moves in the negative x - direction or moves back) from his initial position of x' = 5 m.

His final position, x" after moving back 6 m is gotten from

x" - x' = -6 m

x" = -6 + x'

x" = -6 + 5

x" = -1 m

Thus, his total displacement from his original position is

d = final position - initial position

d = x" - x

d = -1 m - 0 m

d = -1 m

So, his total displacement from his original position is -1 m

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Displacement is equal to the area under a velocity-time graph.

Answer:

the answer is 0.206 day

hope this helps!

Answer:

17800 Second (s) = 0.206019 Day (d)

Explanation:

Distance travelled = Area under the line

= ut + ½ (v-u)t

Acceleration (a) = (v-u)/t and so (v-u) = at

Therefore,

Distance travelled (s) = ut + ½ (v-u)t = ut + ½ (at)t = ut + ½ at²

Thus,proved.

Answer:

Explanation:

Descriptive statistics statistics are measures that summarize the characteristics of a sample.

Hope it helps

Answer:

D. 0.5 m/s

Explanation:

From C to D:

displacement, d is (8 - 7) = 1 m

time, t is (7 - 5) = 2 s

[tex]velocity = \frac{displacement}{time} \\ \\ velocity = \frac{1}{2} \\ \\ velocity = 0.5 \: m {s}^{ - 1} [/tex]

Answer:

due to inertia of motion

(a)

A = (75.0 cm) (cos(30°) i + sin(30°) j)

A = (75.0 cm) (√3/2 i + 1/2 j)

A ≈ (64.95 i + 37.5 j) cm

The x component is the coefficient of the i unit vector, while the y component is the coefficient of the j unit vector.

(b) "points along the negative axis" in other words means that B makes an angle of 180° with the positive x-axis in the counterclockwise direction. In particular this tells you that B is parallel to the x-axis, so its y component would be zero.

B = (25.0 cm) (cos(180°) i + sin(180°) j)

B = (25.0 cm) (-1 i + 0 j)

B = (-25.0 i) cm

(c) If the negative x-axis corresponds to 180°, then 45° below this would make an angle of 180° + 45° = 225° with the positive x-axis.

C = (40.0 cm) (cos(225°) i + sin(225°) j)

C = (40.0 cm) (-1/√2 i - 1/√2 j)

C ≈ (-28.28 i - 28.28 j) cm

(d) The sum A + B + C has components that are the sums of the components of each of A, B, and C.

A + B + C ≈ (11.67 i + 9.22 j) cm

(e) The magnitude of the vector sum is

||A + B + C|| = √((11.67 cm)² + (9.22 cm)²) ≈ 14.87 cm

(f) Since both components of the vector sum are positive, you know that it's a vector that terminates in the first quadrant of the x,y-plane, so it makes an angle with the positive x-axis of

arctan(9.22/11.67) ≈ 38.3°

Answer:

jjjjjjhshahshhddhdhh

Explanation:

Hey there!

According to the question;

Density of diamond (d) = 3.26g/cm³

And Volume (v) = 0.214 cm³

Mass(m) = ?

From the definition of density;

d = m/v

Or, 3.26 g/cm³ = m/(0.214 cm³)

or, 3.26 g/cm³ * 0.214 cm³ = m

Therefore, mass of the diamond is 0.69764 g.

Hope it helps!

Answer:

The answer is D. Four covalent bounds

Answer:

2 m = E / c^2      where m is mass of electron

E = h v     where v is the frequency ( nu) of the incident photon

E = h c / y      where y is the incident wavelength (lambda)

2 m = h / (c y)

y = h / (2 m c)      wavelength required

y = 6.62 * 10E-34 / (2 * 9.1 * 10E-31 * 3 * 10E8)  m

y = 3.31 / 27.3 E-11 m

y = 1.21 E -12 m   = .0121 Angstrom units

distance= speed*time

distance=65*7=455km

(a) The value of n is 1 and the value of m is 2

(b) The simplest form of an equation for the position is [tex]at^2[/tex]

The given expression:

[tex]x = a^nt^m[/tex]

To find:

The values of n and m will be calculated using the dimensions of accelerations, position and time.

(a) the values of n and m are calculated as follows:

[tex]x = a^n t^m\\\\ L = [LT^{-2}]^n [T]^m\\\\L = [L]^n [T^{-2n}][T]^m\\\\L = [L]^n[T^{m-2n}]\\\\L^1T^0 = [L]^n[T^{m-2n}]\\\\L^1 = L^n\\\\n = 1\\\\T^0 = T^{m-2n}\\\\0 = m - 2n\\\\0 = m- 2(1)\\\\0 = m- 2\\\\m = 2[/tex]

(b) The simplest form of an equation for the position can be written as;

[tex]x = a^n t^m\\\\x = a^1 t^2\\\\x = at^2[/tex]

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Answer:

I think it's possible to know if more universes exist like how we found out that more galaxies exist.

Answer Explanation:

d = vt

You will be 3(15) = 45 m west of where you began.

As we do not know where the lion is to begin with, it's hard to say where we will end up relative to it.

Answer:

radius is C: 5.0 m

Explanation:

formular for centripetal acceleration:

[tex]a = \frac{ {V}^{2} }{r} [/tex]

a is acceleration

V is velocity

r is radius

[tex]24 = \frac{ {11}^{2} }{r} \\ \\ r = \frac{ {11}^{2} }{24} \\ \\ r = 5.0 \: m[/tex]

This length is approximate.

==========================================================

Explanation:

The centripetal acceleration formula we use is

a = (v^2)/r

where v is the linear velocity and r is the radius. The swing moves in a circular path, so the chain acts as the radius. If we can find the radius, then we have found the chain length. The goal is to find r when a = 24 and v = 11

So we have...

a = (v^2)/r

24 = (11^2)/r

24 = 121/r

24r = 121

r = 121/24

r = 5.041667 approximately

r = 5.0 meters when rounding to the nearest tenth

The chain should be approximately 5.0 meters.

Answer:

The distance travelled by the rock is 65m

The rock is thrown 15 m up from the edge of the cliff and it have to travel 15 m down to reach the cliff and go to bottom  of the cliff by 35 m. Thus, the total distance travelled by the rock is 65 m.

Distance is a physical quantity used to measure how far an object is travelling. It is a scalar quantity and is characterised by magnitude only. Distance travelled is sometimes substituted with displacement. Both have the units in cm, m, feet, kilometer etc.

Distance in physics is the product of the speed of a moving body and the time taken complete the travel.

Distance = speed × time.

It is given that, the rock is thrown straight up from the edge of a cliff and it reaches upto 15 m. Then it have to return back this 15 m down to reach the edge. From there it goes 35 m below.

Thus, total distance = 15 + 15 + 35 = 65 m.

Therefore, the total distance travelled by the rock is 65 m.

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Answer:

E= mc^2

Explanation:

I don't know.Err.. why don't you ask another person

Answer

A. solid

Explanation

We have that At room temperature (~25°C), lauric acid is in a

Solid state

Option A

From the question we are told that

The boiling point of lauric acid is 298.9°C. Its melting point is 43.2°C.

It is important to note that Room temperature is is at 25C

Generally

if lauric acid 298.9°C and melting point is 43.2°C

Therefore at room temperature low than Boiling and melting point  lauric acid is

Solid

in conclusion

At room temperature (~25°C), lauric acid is in a Solid state

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Explanation:

Matter is anything occupies space and has mass

Matter is made up small tiny particles called atom

Atom contains:-

Proton

Neutron

Electron

Answer:

The Effective Cooperative Conflict management consists of a series of steps to take when two or more people have a clash or opposing interests that in some way get in the way of the action of the other. These steps consist of the following:

1) manage emotions,

2) manage feedback

3) manage a goal.

Answer:

I (cylinder) = 1/2 M R^2

I (sphere) = 2/5 M R^2

The equation  of motion shows

I * alpha = M g R sin theta = const

An increase in the moment of inertia will result in a smaller acceleration

The cylinder will have the smallest forward velocity because it will arrive at the bottom after the sphere

Answer:

Explanation:

The car is rolling without slipping so Vcm= R×ω = 0.325×49 = 16

Answer:

40 kg•m/s

Explanation:

momentum (p) = mass (kg) × velocity (m/s)

Answer:

d is the right answer

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