Write 4,007,500,000 in scientific notation.
4.0075 x 10 -9 (-9 is an exponent)
4.075 x 10 9 (9 is an exponent)
4007.5 x 10 6 (6 is an exponent)
4.0075 x 10 9 (9 is an exponent)

Answer:

The object sped up.

The object changed directions.

Explanation:

Just got the question correct.

Answer:

A & D

The object sped up

The object changed direction

Explanation:

:)

Answer:

c - the frequency of the waves decreases

Answer:

I think its B and I don't know why my words are like this

Explanation:

Answer:

5 and 3/4 meters

Explanation:

This is because if it is slowing down by 4 meters and it was moving at 23, then you would figure out how many times 4 can go into 23 and you'd get 5 and 3/4 meters.

The primary job of a(n) ____

is to increase the power of a modified radio wave.

Answer:

Explanation:

Hope it helps:)

#CarryOnLearning

Answer: Amplifier

Explanation: Edge 2021

Have a great day :D

[tex] \sf• \: Power \:( P) = 300 \: watts[/tex]

[tex] \sf• \: Current \: (I) = 30 \: amps[/tex]

[tex] \\ [/tex]

[tex] \sf• \: The \: Resistance [/tex]

[tex] \\ [/tex]

[tex] \huge\bf{ \underline{Solution :-:- }}[/tex]

[tex] \bf \red {\bigstar{ Formula \: of \: Power \: (P) = \frac{ {I}^{2} }{R}}}[/tex]

[tex] \sf \rightarrow 300= \frac{ {30}^{2} }{ R} [/tex]

[tex] \sf \rightarrow 300 = \frac{900}{ R} [/tex]

[tex] \rightarrow \sf R = \frac{300}{900} [/tex]

[tex] \rightarrow \sf R = \frac{1}{3} [/tex]

[tex] \rightarrow \sf R = 0.33[/tex]

[tex] \bf \purple{Hence, \: the \: resistance \: is \: 0.33 \: Ω \: . }[/tex]

Answer:

Ro = 1000 [kg/m³]

Explanation:

We must remember that density is defined as the relationship between mass and volume.

[tex]Ro=m/V\\[/tex]

where:

Ro = density [kg/m³]

m = mass = 3 [kg]

V = volume = 3000 [ml]

We must convert the volume of milliliters to cubic meters

[tex]3000[ml]*\frac{0.001Lt}{1ml}*\frac{1m^{3} }{1000Lt} = 0.003m^{3}[/tex]

Now replacing:

[tex]Ro=3/0.003\\Ro=1000[kg/m^{3} ][/tex]

Answer: 10 m/s

Explanation: I got the answer wrong, then it showed it to me

Answer:

the girl is running faster because -2 is greater than -8

Explanation:

Explanation:

the velocity graph of a ball mass 20mg moving along a straight line

16m/s^2

Explanation:

initial velocity (u) =0

final velocity (v) =80

acceleration =?

Now,

acceleration = (v-u)/t

=(80-0)/5

= 80/5

= 16m /s^2

Answer: one complete wave in a standing wave pattern consists of two loops. Thus, one loop is equivalent to one-half of a wavelength

Explanation: I hope that helped- Please mark me as brainliest!

Answer:

the standing wave within =1 oscillates at the fundamental frequency and has a wavelength that is twice the length of the string . Higher integer value of n correspond to mode of oscillation called harmonics or overtones . Any standing waves on the string will have n +1 node including the fixed end and n anti-nodes.

I hope that helped.Plzz mark me as brainliest

Answer:

First) X-ray

Second) I think sound waves

Explanation:

Answer:

Newton's First Law of Motion.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

In physics, Sir Isaac Newton's First Law of Motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

In this scenario, a girl pushes her little brother down a snowy hill on a sled and he rides quickly to the bottom of the hill. The push from the little boy's sister is the external force acting on him and consequently, causing him to be in motion down the snowy hill.

Answer:

22500N

Explanation:

Given parameters:

Mass of the car  = 1500kg

Acceleration  = 15m/s²

Unknown:

Force applied  = ?

Solution:

From Newton's second law of motion:

  Force  = mass x acceleration

So

     Force  = 1500 x 15  = 22500N

Answer:

1.67s

Explanation:

Given parameters:

Initial velocity  =  20m/s

Acceleration  = 6m/s²

Final velocity  = 30m/s

Unknown:

Time taken  = ?

Solution:

Acceleration is the rate of change of velocity with time. It is mathematically expressed as;

 Acceleration = [tex]\frac{v - u }{t}[/tex]  

v is the final velocity

u is the initial velocity

 t is the time taken

            6  =[tex]\frac{30 - 20}{t}[/tex]  

            6  = [tex]\frac{10}{t}[/tex]  

              10  = 6t

              t  = 1.67s

Answer:

The two objects should be kept at a distance of [tex]3.535\times 10^{4}[/tex] kilometers.

Explanation:

From Newton's Law of Gravitation, gravitational force ([tex]F[/tex]), measured in newtons, between two objects is inversely proportional to the square of distance ([tex]r[/tex]), measured in meters. That is:

[tex]F \propto \frac{1}{r^{2}}[/tex] (1)

[tex]F = \frac{k}{r^{2}}[/tex] (2)

Where [tex]k[/tex] is the proportionality ratio, measured in newtons-square meter.

Now we eliminate the proportionality by constructing the following relationship:

[tex]\frac{F_{2}}{F_{1}} = \left(\frac{r_{1}}{r_{2}}\right)^{2}[/tex] (3)

If we know that [tex]\frac{F_{2}}{F_{1}} = \frac{1}{2}[/tex] and [tex]r_{1} = 2.5\times 10^{7}\,m[/tex], then the distance between the two objects so that gravitational force becomes half is:

[tex]\frac{1}{2} = \frac{(2.5\times 10^{7}\,m)^{2}}{r_{2}^{2}}[/tex]

[tex]r_{2}^{2} = 1.25\times 10^{15}\,m^{2}[/tex]

[tex]r_{2} = 3.535\times 10^{7}\,m[/tex]

[tex]r_{2} = 3.535\times 10^{4}\,km[/tex]

The two objects should be kept at a distance of [tex]3.535\times 10^{4}[/tex] kilometers.

Answer:1 Sprint 54 cm Beyond

2 Sprint 41 cm Beyond

3 Sprint 68 cm Beyond

4 Sprint 32 cm Beyond

5 Sprint 44 cm Beyond

6 Jog   31 cm Beyond

7 Jog         22 cm Beyond

8 Walk 17 cm Beyond and left

9 Walk 6 cm Beyond

Explanation:

Answer:

1 Sprint 54 cm Beyond

2 Sprint 41 cm Beyond

3 Sprint 68 cm Beyond

4 Sprint 32 cm Beyond

5 Sprint 44 cm Beyond

6 Jog 31 cm Beyond

7 Jog 22 cm Beyond

8 Walk 17 cm Beyond and left

9 Walk 6 cm Beyond

Explanation: edmentum sample answer

Answer:

A

Explanation:

Answer:

It will travel 7,560 m

Explanation:

63 x 120 = 7,560 m

Answer:

A. 1.90

I divided 63 by 60 and got 1.05

I multiplied 1.05 by 2 (120 seconds = 2 minutes) and I got 2.1

1.90 is the closest answer.

Answer:

C

Explanation:

Answer:

75000J

Explanation:

Given parameters:

Force applied on the car  = 1000N

Distance moved  = 75m

Unknown:

Work done  = ?

Solution:

The work done by a body is the force applied to move it through a particular distance.

So;

    Work done  = Force x distance

Therefore;

    Work done  = 1000 x 75  = 75000J

Answer Bdote means “where two waters come together.” While bdote can refer to any place where waters converge, many Dakota people consider this location as a sacred place of creation, identifying themselves as the Wicahpi  Oyate (Star Nation) who originated in the sky and came into being on this land.

I hope it helpful

Answer:

Force(Romeo moving) = 5,000 N

Explanation:

Given:

Mass of horse = 900 kg

Acceleration = 20 km/hr

Find:

Force(Romeo moving)

Computation:

Acceleration = 20 km/hr

Acceleration in m/s = 20 / 3.6 = 5.555556 m/s²

Force = m x a

Force(Romeo moving) = 900 x 5.555556

Force(Romeo moving) = 5,000 N

Answer:

Explanation:

We shall apply law of conservation of momentum .

Momentum before impact = momentum after impact

Since they are moving towards the same direction , their momentum will add up .

Total momentum before impact

= 136 x 6 + 100 x 1 = 916 kg m/s .

Total mass of lineman and quarterback = 236 kg , if their velocity after impact be v

their momentum = 236 v

According to law of conservation of momentum

236 v = 916

v = 3.88 m /s

Both of them will move with velocity of 3.88 towards the north .