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Law Incorporation [45]
2 years ago
12

Which of the following helps in designing an attractive 3-D craft?

Physics
2 answers:
d1i1m1o1n [39]2 years ago
7 0

Answer:

Shapes and space

Explanation:

3D crafts use shapes and space.

The purpose of space: Distance, area, volume; physical space independent of what occupies it; absolute space.

The purpose of shapes: Positive and negative

Positive shape is the totality of the mass lying between its contours; in three-dimensional work, the visible shape or outer limit of a form changes as the viewer's position is changed. These outer limits are seen as shapes moving back and forth between major contours.

Negative space is empty space defined by a positive shape. Sometimes referred to as occupied and unoccupied space.

MA_775_DIABLO [31]2 years ago
5 0

Answer:

it A texture and colour I

Explanation:

I just did this

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andrezito [222]
The most i can help with is Saliva glands or salivary glands 
3 0
3 years ago
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A balloon drifts 140 m toward the west in 45 s; then the wind suddenly changes and the balloon flies 90 m toward the east in the
rusak2 [61]

Answer:

Explanation:

Given

1 ) 140 m west in 45 s .

2 ) 90 m east in 25 s .

a )

distance travelled in first 45 s = 140 m

b ) distance travelled in next 25 s = 90 m

c ) Total distance travelled = 140 m + 90 m

= 230 m

d ) average speed in first 45 s

= distance in 45 s  45

= 140 / 45 = 3.11 m /s

e ) average speed in next 25 s

distance in 25 s / 25

= 90 / 25 = 3.6 m /s

f ) average in entire trip

=  total distance / total time

= (140 + 90) / ( 25 + 45 )

= 3.28 m /s

g )

displacement in first 45 s = 140 m towards west

h )

displacement in next 25 s = 90 m towards east

i )

total displacement = 140 - 90

= 50 m towards west .

3 0
2 years ago
2
Xelga [282]

Answer:

About 7.67 m/s.

Explanation:

Mechanical energy is always conserved. Hence:

\displaystyle \begin{aligned} E_i & = E_f \\ \\ U_i + K_i &= U_f + K_f\end{aligned}

Where <em>U</em> is potential energy and <em>K</em> is kinetic energy.

Let the bottom of the slide be where potential energy equals zero. As a result, the final potential energy is zero. Additionally, because the child starts from rest, the initial kinetic energy is zero. Thus:

\displaystyle U_i = K_f

Substitute and solve for final velocity:
\displaystyle \begin{aligned} mgh_i &= \frac{1}{2}mv_f^2 \\ \\  2gh_i &= v^2_f \\ \\ v_f &= \sqrt{2gh_i} \\ \\ &  =\sqrt{2(9.8\text{ m/s$^2$})(3.00\text{ m})} \\ \\ & \approx 7.67\text{ m/s} \end{aligned}

In conclusion, the child's speed at the bottom of the slide is about 7.67 m/s.

8 0
2 years ago
Visualize five horizontal sedimentary strata exposed in a cliff or canyon wall identified by consecutive numbers, 1 being the lo
Grace [21]

Answer:

Only the 4 th statement is true that is bed 1 and 3 are older than 4.

Explanation:

The 5 beds are numbered from 1 to 5 , 1 being the lowest and 5 being the topmost bed.

We are given 4 statements and we have to find out which all are true.

(<u>a)Bed 4 is older than bed 2 </u>

This is wrong because the lower beds are older than beds that are higher.

<u>(b)Bed 3 is older than beds 2 and 4</u>

This is also wrong because the 2 is older than 3

(<u>c)Bed 5 is the oldest </u>

This is wrong because bed 1 is the oldest

(<u>d)Beds 1 and 3 are older than 4</u>

This is true as lower beds are older

<u />

6 0
3 years ago
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Which is not expecting acceleration?
TiliK225 [7]

#1)

1).  A point on the outside of a spinning top whose rotational speed is constant.

It will not accelerate as its net speed is ZERO

2).  A skydiver whose air resistance is equal to that of her weight.

Since weight is counterbalanced by resistance so here net force is zero so acceleration must be zero here

3).   A car on the freeway experiencing a net force of -120 N.

Since there it acts net force F = -120 N so it will accelerate here

4).  A submerged beach ball whose buoyant force is eight times the force of gravity on it.

Since buoyant force is more than weight of the ball so it will accelerate upwards

#2)

A non accelerating fra me is always a valid inertial frame

A frictionless spinning merry go round.

(since it is having centripetal acceleration so it is non inertial frame)

A falling rock.

(Since it is falling with acceleration a = 9.8 m/s^2 so it is non inertial)

A hot air balloon moving at 30 degrees east of north with no net force.

(Since net force on hot air balloon is ZERO so it is Inertial Frame)

A space shuttle whose boosters just ignited for takeoff.

(Since space shuttle ignite the boosters so it will accelerate here and hence it is non inertial)

#3

here two forces given as

F_1 = 4320 N towards right

F_2 = 4380 N towards Left

Since left side applied force is more than right side applied force so net force on it will be towards Left and it is given by

F = 4380 - 4320 = 60 N

So it is 60 N Left

7 0
2 years ago
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