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2 years ago

Sandstone is a sedimentary rock. Which two processes cause sand particles to form sandstone?

Physics

2 answers:

slava [35]2 years ago

8 0

Answer:

number 2 is correct

Explanation:

cementation as icons are deposited by fluids to form a compound that hardens looses sedimentary rocks .

compaction is the density of sedimentary rocks on edge of them, are forced together though sediments mark me brainest add and follow me

yuradex [85]2 years ago

6 0

Answer:

Compaction and cementation

Explanation:

Cementation: As ions are deposited by fluids to form a compound that hardens loose sedimentary rocks.

Compaction: As the density of sedimentary rocks on edge of them are forced together through sediments.

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In an amusement-park ride, riders stand with their backs against the wall of a spinning vertical cylinder. The floor falls away

seraphim [82]

Answer:

90.78 rev/min

Explanation:

In first place, we have to do the force balance to determine the minimum angular speed required to avoid slipping. The forces acting here are friction and the force due to circular movement, that is centripetal force. Then, we have:

$f=ma_{c}$

μmg=mRω^2

ω= $\sqrt{\frac{μg}{R} } \\$

Then, replacing the given values in the expression we have the following result:

ω=1.51 rev/s*60s=90.78 rev/min

4 0

2 years ago

The total thermal energy needed to raise the temperature of this ice cube to 0.0 °C and completely melt the ice cube is 5848 J

USPshnik [31]

Answer:

0.018kg

Explanation:

Q=mlf

m=?,Lf=334000J/kg,Q=5848J

5848=mx334000

5848=334000m

divide both sides by 334000

334000m/334000=5848/334000

m=0.018kg

4 0

2 years ago

The strength of the electric field at a certain distance from a point charge is represented by e. What is the strength of the el

Masteriza [31]

Answer:

At twice the distance, the strength of the field is e/4

Explanation:

F = the strength of an electric field.

F is inversely proportional to the squared distance from the point charge.

mathematically,

F = k(e/d²)

hence, if d is doubled,keeping other forms constant

F = e/4,

7 0

3 years ago

A wave has a wavelength of 12 mm and a frequency of 16 hertz. What is its speed?

dangina [55]

Answer:

192 mm/s

Explanation:

The frequency, speed and wavelength of any given wave are related to one another by the formula;

fλ = v

Where f denotes the frequency, v the speed or velocity and λ the wavelength

We are given that;

λ = 12

f = 16

v = 16 * 12 = 192 mm/s

3 0

3 years ago

An arbitrarily shaped piece of conductor is given a net negative charge and is alone in space. What can we say about the electri

Marat540 [252]

Answer:

The electrostatic potential within the conductor will be negative and constant throughout the conductor.

Explanation:

Whenever a conductor is charged the total charge is spread throughout the entire surface uniformly. Inside the conductor the net electric field is always zero. Also we know if $\overrightarrow{E}$ e the electric field and V is the potential, then

$\overrightarrow{E}= - \overrightarrow{\nabla}V$

Now as in this case electric field within the conductor is zero, so potential (V) has to be constant.

8 0

3 years ago