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3 years ago

15

Which items are matter?

2 answers:

Marina86 [1]3 years ago

8 0

Battery and mobile phone I think cuz they are solid objects.

svetoff [14.1K]3 years ago

5 0

Answer:

which items are matter?

battery , mobile phone

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What are three biotic factors that can affect an organism after death?

Anestetic [448]

Brain , blood , Nutrisystem !!!!!!’

7 0

3 years ago

Read 2 more answers

A stone dropped from the top of a building reaches the ground with a velocity of 49ms¹. If the acceleration due to gravity is 9.

bezimeni [28]

Explanation:

Given:

v₀ = 0 m/s

v = 49 m/s

a = 9.8 m/s²

Find: t

v = at + v₀

49 m/s = (9.8 m/s²) t + 0 m/s

t = 5 s

6 0

3 years ago

A 0.40-kg block is attached to the end of a horizontal ideal spring and rests on a frictionless surface. The block is pulled so

lubasha [3.4K]

Answer:

160N/m

Explanation:

According to Hooke's law which states that the extension of an elastic material is directly proportional to the applied force provided that the elastic limit is not exceeded. Mathematically,

F = ke where

F is the applied force

k is the spring constant

e is the extension

From the formula k = F/e

Since the body accelerates when the block is released, F = ma according to Newton's second law of motion.

The spring constant k = ma/e where

m is the mass of the block = 0.4kg

a is the acceleration = 8.0m/s²

e is the extension of the spring = 2.0cm = 0.02m

K = 0.4×8/0.02

K = 3.2/0.02

K = 160N/m

The spring constant of the spring is therefore 160N/m

4 0

4 years ago

Light travels 186,282 miles in one second. A light year is the distance light travels in one year. It is about 4.3 light years t

deff fn [24]

Answer:

$2.5278035226\times 10^{13}\ miles$

1994.7944465 miles

46390568.5227 miles

125 ft

Explanation:

$1\ ly=186282\times 365.25\times 24\times 60\times 60=5.8786128432\times 10^{12}\ mi$

$4.3\ ly=4.3\times 5.8786128432\times 10^{12}=2.5278035226\times 10^{13}\ miles$

The distance is $2.5278035226\times 10^{13}\ miles$

$2000\ miles=0.01\ in$

$2.5278035226\times 10^{13}\times \dfrac{1}{2000}=1.2639017613\times 10^{10}\ LA\ to\ NY$

Converting to inches

$1.2639017613\times 10^{10}\times 0.01=126390176.13\ in/LA\ to\ NY$

Converting to miles

$126390176.13\times\dfrac{1}{5280\times 12}=1994.7944465\ inches/LA\ to\ NY$

The distance is 1994.7944465 miles

$5.8786128432\times 10^{17}\times \dfrac{1}{2000}\times 0.01\times\dfrac{1}{5280\times 12}=46390568.5227\ miles$

The distance is 46390568.5227 miles

$5.8786128432\times 10^{12}\times 15\times 10^{9}=8.8179192648\times 10^{22}$

$8.8179192648\times 10^{22}\times \dfrac{1}{5.8786128432\times 10^{17}}=150000\ MW\ dia$

$150000\dfrac{1}{100\times 12}=125\ ft$

The distance is 125 ft

5 0

4 years ago

Explain the force that keep the rock balanced on its tiny pedestal

Nuetrik [128]

A pedestal rock, also known as a rock pedestal or mushroom rock, is not a true balancing rock, but is a single continuous rock form with a very small base leading up to a much larger crown. Some of these formations are called balancing rocks because of their appearance. The undercut base was attributed for many years to simple wind abrasion, but is now believed to result from a combination of wind and enhanced chemical weathering at the base where moisture would be retained longest. Some pedestal rocks sitting on taller spire formations are known as hoodoos. I think this is the answer if I’m wrong I’m very sorry

5 0

3 years ago