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stealth61 [152]
4 years ago
5

Quartz gold and calcite are examples of?coal is what

Physics
1 answer:
givi [52]4 years ago
5 0
Quartz, gold and calcite are examples of minerals, coal is a fossil fuel
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I need help ! if anyone answers this its worth 40 points please help !!
Sliva [168]
Double displacement...I think
3 0
3 years ago
Length of your pencil is 6 cm. what does it mean?​
KonstantinChe [14]

Answer:

It simply means that, the pencil is long enough to attain a length of six (6) centimeters when measured with a measuring tool such as a ruler, tape, etc.

Explanation:

A scientific method can be defined as a research method that typically involves the use of experimental and mathematical techniques which comprises of a series of steps such as systematic observation, measurement, and analysis to formulate, test and modify a hypothesis.

Measurements refers to a process which typically involves identifying and determining the dimensions of a physical object. The dimensions include important parameters such as width, height, length, area, volume, circumference etc.

Hence, a pencil whose length is measured as 6 centimeters has a physical dimension that covers a distance of six (6) centimeters in terms of size.

In conclusion, the pencil would cover a length of six (6) centimeters when measured vertically and a corresponding height of six (6) centimeters when measured horizontally.

4 0
3 years ago
In which region of the Sun does energy move as waves that transfer from atom to atom? photosphere corona core radiative zone chr
Tatiana [17]

Answer : Option B) Radiative zone

Explanation : The sun consists of many zones in it. Particularly in the radiative zone, the energy is primarily transported toward the exterior side by the process of radiative diffusion and thermal conduction, rather than by convection. Energy travels through the radiation zone in the form of electromagnetic radiation as photons and energy is transformed from atom to atom.

5 0
4 years ago
Read 2 more answers
One of the explorers is able to jump a maximum distance of 19.5 m with an initial speed of 2.80 m/s. Find the gravitational acce
BlackZzzverrR [31]

Answer:

0.2 m/s^2

Explanation:

Maximum distance, h = 19.5 m

initial speed, u = 2.80 m/s

final speed, v = 0 m/s

Let the gravitational acceleration is a.

Use third equation of motion

v^{2}=u^{2}-2\times a\times h

0^{2}=2.80^{2}-2\times a\19.5

2\times a\19.5=7.84

a = 0.2 m/s^2

Thus the gravitational acceleration on the exoplanet is 0.2 m/s^2

8 0
3 years ago
A person walks in the following pattern: 3.1 km north, then 2.4 km west, and finally 5.2 km south. a) Sketch the vector diagram
zysi [14]

Answer:

d = 3.19 km

direction is given as

\theta = 41.2 degree South of West

Explanation:

Part b)

displacement is given as

d_1 = 3.1 \hat j

d_2 = 2.4 \hat i

d_3 = 5.2(-\hat j)

now we will have

d = d_1 + d_2 + d_3

d = 2.4 \hat i + (3.1 - 5.2)\hat j

d = 2.4 \hat i - 2.1 \hat j

total displacement is given as

d = \sqrt{2.4^2 + 2.1^2}

d = 3.19 km

direction is given as

tan\theta = \frac{-2.1}{2.4}

\theta = 41.2 degree South of West

3 0
4 years ago
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