If anyone can answer any of these questions it would be so amazing. My teacher for physical science didn't do a good job explaining it and I don't have enough time to teach it to myself.

Answer:

B

Explanation:

......................

Answer:

Lithification is the answer.

Answer:

0.0001158443168226212 Celcius (significant digits? who cares.....) or about 0.00021 Fahrenheit

Explanation:

500g=0.5kg

PE=mgh

PE=(0.5)*(9.81)*(1.5)

PE=7.36J

3% of 7.36 is 0.22J is converted to heat

From there, it's tricky.

I just used a joules to celcius converter to get 0.0001158443168226212 degrees celcius or 0.00021 degrees fahrenheit rise in temp.

Answer:

857.5Kjoules

Explanation:

Using K. E=1/2 Mv^2

=1/2x1400x35x35

=857500joules

=857.5KJ

Answer:

Change in velocity

−2−10=−12

Time required is 4 seconds

a=Δv/t

=−12/4

=−3m/s²

Hence,

option C is correct answer.

Nuclear reactions are independent of the chemical form of the element.

Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei.

D.

Answer:

Force=2.484 N

Explanation:

[tex]f = \frac{w}{gh} \\ = \frac{297}{9.8 \times 12.2} \\ f = 2.484 \: n [/tex]

Hope it helped

PLS mark BRAINLIEST

A wagon of mass 42 kg is pushed by a student a distance of 12.2 meters, and 297 j of work was done on the wagon force did the student apply is 24.34 N.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

work = force*distance

force = work/distance

force = 297/12.2

force = 24.34 N

A wagon of mass 42 kg is pushed by a student a distance of 12.2 meters, and 297 j of work was done on the wagon force did the student apply is 24.34 N.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ2

Answer:

m = 7.2 kg

Explanation:

Given that,

The velocity of the drone, v = 5 m/s

The kinetic energy of the drone, E = 90 J

We need to find the mass of the drone. The formula for the kinetic energy of an object is given by :

[tex]K=\dfrac{1}{2}mv^2\\\\m=\dfrac{2K}{v^2}\\\\m=\dfrac{2\times 90}{(5)^2}\\\\m=7.2\ kg[/tex]

So, the mass of the drone is 7.2 kg.

Answer:

160000000 kg.

Explanation:

p=mv

p=1.6x10^9

v=10m/s

rearrange and substitute:

(1.6x10^9)=m(10)

m=(1.6x10^9)/10

m= 1.6x10^8 kg.

Answer:

d. A large force produces a large change in the object’s momentum only if the force is applied over a very short time interval.

Explanation:

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

[tex] Momentum = mass * velocity [/tex]

Also, the impulse of an object is given by the formula;

[tex] Impulse = force * time [/tex]

In accordance with the impulse-momentum theorem, the statement which is true about the effect of a force exerted upon an object is that a large force produces a large change in the object’s momentum only if the force is applied over a very short time interval.

Answer:

d in my opinion is the most opitmal answer

Explanation:

aka a graph comparing distances traveled by objects thrown on Earth and the moon

Answer:

Its d

Explanation:

a graph comparing distances traveled by objects thrown on Earth and the moon

Answer:

The biker will take "0.016 hours".

Explanation:

The given values are:

Average speed,

[tex]V_{avg}[/tex] = 18 km/h

Distance,

d = 0.30 km

As we know,

⇒  [tex]V_{avg}=\frac{d}{t}[/tex]

or,

⇒  [tex]t=\frac{d}{V_{avg}}[/tex]

On substituting the values in the above formula, we get

⇒     [tex]=\frac{0.30 \ km}{18 \ km/h}[/tex]

⇒     [tex]=0.016 \ hours[/tex]

Answer:

Explanation:

Consider an endless sheet of uniform charge thickness per unit area [tex]\sigma[/tex]  

For a boundless sheet of charge, the electric field will be opposite to the surface. In this way, just the closures of a round and hollow Gaussian surface will add to the electric transition. For this situation, around and hollow Gaussian surface opposite to the charge sheet is utilized. The subsequent field is a large portion of that of a conductor at harmony with this surface charge thickness.  

By balance, we expect the electric field on one or the other side of a plane to be an element of x just to be guided typical to the plane and to point away from/towards the plane contingent upon whether, [tex]\sigma[/tex] is positive/negative.

According to the law;

[tex]2EA = \dfrac{q_{enc}}{\varepsilon_o}[/tex]

[tex]where; \ q_{enc} = total \ enclosed charge = \sigma A \\ \\ thus; \\ \\ 2EA = \dfrac{\sigma A}{\varepsilon_o} \\ \\ E = \dfrac{\sigma}{2 \varepsilon _o}[/tex]

Answer:

Explanation:

It is a colorless, tasteless odorless inert gas.

It changes to reddish-orange color in vacuum tube.

It is chemically inactive.

It has the lowest liquid range of any element.

Answer:ur right I think

Explanation:

Answer:

HON, i'm going to be honest, i'm not sure but it sounds like it is the Universal Expansion from what I learned about space

I'm sure this helps but if it doesn't DON'T GIVE ME BRAINLIEST, if it does then do

Answer:

by using formula,

wavelength= velocity/frequency

= 120/6

= 20 meter

Ans: 20 meter

Answer:

wavelength= velocity

= 120/6= 20 meter

Explanation:

Answer:The stones will be at the same height of 62.59 feets 4.4 seconds later.

Explanation:

Answer:

As the world's largest, most productive, and most controversial water system, it manages over 40 million acre feet (49 km3) of water per year. Water and water rights are among the state's divisive political issues. Due to the lack of reliable dry season rainfall, water is limited in the most populous U.S. state.

Answer:

field strength i think, I'm not that sure.

Answer:

A

Explanation:

the moon rotates exactly once every time it circles the Earth.

Answer:

Opposition of passing a electric circuit

Explanation:

Scientists think an Earth without a tilt would be stratified into climate bands that would get progressively colder as you moved away from the equator. Humans would never survive the continuous winter of the high latitudes, and so we would likely congregate in the planet's tropical midsection.

I hope it's helpful!

Time = (distance) / (speed)

Time = (450 km) / (100 m/s)

Time = (450,000 m) / (100 m/s)

Time = 4500 seconds (that's 75 minutes)

Note:

This is about HALF the speed of the passenger jet you fly in when you go to visit Grandma for Christmas.

If the International Space Station flew at this speed, it would immediately go ker-PLUNK into the ocean.

The speed of the International Space Station in its orbit is more like 3,100 m/s, not 100 m/s.

Answer:

velocity has direction and acceleration doesn't

Answer:

According to me Option is the right answer

A. 8,400 J

Answer:

C

Explanation:

A- velocity=wavelength*frequency

velocity=1.0*1.6.......=1.6 m/s

B- wavelength=velocity/frequency

wavelength=1.6/3.2.....=0.5 meters