What will this be ? Help me out

Answer:

The height in which the book is dropped from is 1.28 m.

Explanation:

Mass of the book, m = 1.5 kg

initial velocity of the book, u = 0

final velocity of the bok, v = 5 m/s

The height in which the book is dropped from is given by;

v² = u² + 2gh

v² = 0 + 2gh

v² = 2gh

h = v² / 2g

h = (5)² / (2 x 9.8)

h = 1.28 m

Therefore, the height in which the book is dropped from is 1.28 m.

Answer:

You will have to do the last PE - the initial PE

Explanation:

Answer:

F = 12000 N = 12 KN

Explanation:

First we need to find the acceleration of the bad boys by using second equation of motion:

s = Vi t + (1/2)at²

where,

s = distance covered = 5 m

Vi = Initial Velocity = 0 m/s

t = time taken = 0.5 s

a = acceleration = ?

Therefore,

5 m = (0 m/s)(0.5 s) + (1/2)a(0.5 s)²

a = 2(5 m)/(0.5 s)²

a = 40 m/s²

Now, we calculate the force applied by Newton's Second Law:

F = ma

where,

F = force = ?

m = mass of bad guys = 300 kg

Therefore,

F = (300 kg)(40 m/s²)

F = 12000 N = 12 KN

Answer:

a.-7.5 m/s

b.18.75 m

Explanation:

hope it helps

Answer:

hgt tdyrghgcderhgfe

Explanation:

rghttyhhhggggftttgf d's weyhvfswertfcdsettyhgftgdfvhgg fee e4y

Answer:

b. O and Cl

Explanation:

Answer:

Acceleration, [tex]a=23\ m/s^2[/tex]

Explanation:

Given that,

The statue of Liberty is at a height of 46 m.

Jean Grey needs to fly from  rest on the ground to the top of the Statue of Liberty (46 m) in 2.0  seconds.

We need to find her minimum average acceleration during her  ascent. Let it is t. Using the second equation of motion to find it.

[tex]h=ut+\dfrac{1}{2}at^2\\\\h=\dfrac{1}{2}at^2\\\\a=\dfrac{2h}{t^2}\\\\a=\dfrac{2\times 46}{(2)^2}\\\\a=23\ m/s^2[/tex]

So, the constant acceleration is [tex]23\ m/s^2[/tex] for the entire distance.

Answer:

Agriculturally suitable lands have adequate precipitation and moderate temperatures as well as good soils. Farmers regularly have to contend with wet and dry events to grow crops, even in hospitable climates.

Explanation:

Answer:

5 I think will be none of the above and 6 could be all of the above

Answer:

4500

Explanation:

Formula: power x time

300 x 15 = 4500

Answer:

Answer:

Explanation:

Explanation:

I think its D.

I believe the answer is Justine, correct me if I’m wrong.

Answer:

The nuclear force

Explanation:

hope this helps

Answer:

58.5

Explanation: no clue on how to do it but i just got that answer on my accelus✨

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration. The direction of the boat is northward and its magnitude is 1.633 m/s².

An object is said to be accelerated if there is a change in its velocity. The rate of change of velocity with respect to time is known as the velocity. It is a vector quantity and it has both magnitude and direction. It is the first derivative of velocity with respect to time.

Fx = 2200 [N]

Fa = 1350 [N]

F = √(Fₓ)² + (Fₐ)²

F = √(2200)² + (1350)²

F = 2581.18 N

Now using Newton's second law.

F = m×a

a = F / m

a = 2581.18 / 1580

a = 1.633 m/s²

Thus acceleration is 1.633 m/s² and it is northward direction.

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Answer:

A lake full of a larger variety of fish, frogs, and birds

Answer:

Hence from liquid to solid or solid to liquid the transition has to cross the grey zone. This grey zone transition is is very crucial which includes the intermolecular forces acting on the molecules and each atoms which makes the change in state from hot to cold and cold to hot.

Explanation:

epidermal layer is made of basal cell layer that are consulting dividing

Answer:

Explanation:

Workdone by the rope is expressed using the formula;

W = Fd sin(theta)

F is the tension in the rope = 180

d is the displacement = 300m

theta is the angle of inclination = 15°

Substitute the given parameters into the formula;

W = 180(300)sin15

W = 54000sin 15

W = 13,976.23

Hence the workdone by the rope is 13,976.23Joules

Answer:

the correct answer is ( head ) just took it

The body loses up to 40 percent of its body heat through the head area.

The heat transferred to the surrounding by the thermal conductive substance per unit time.

40 to 45 percent of human body heat is lost through the head and neck due to increased blood flow as compared to the rest of the body.

Along with the wrists and ankles, this can be 60 percent.

Thus, the body loses up to 40 percent of its body heat through the head area.

Learn more about heat loss rate.

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Answer:

The arrows always start at the magnet's north pole and point towards its south pole. When two like-poles point together, the arrows from the two magnets point in OPPOSITE directions and the field lines cannot join up. So the magnets will push apart (repel).

Answer:

it is nicotine

Explanation:

your welcome

Answer:

Nicotine

Explanation:

Answer:

19.5 m

Explanation:

EN LANZAMIENTO DE PROYECTILES, LA VELOCIDAD HORIZONTAL

PERMANECE CONSTANTE.

PRIMERO ENCUENTRA LA VELOCIDAD VERTICAL

[tex]v^{2}[/tex]y = 2([tex]9.80 m/s^{2}[/tex])(1.8 m) = [tex]\sqrt{35.3 m^{2}/s^{2}}[/tex] = 5.94 m/s

LUEGO ENCUENTRAS EL TIEMPO QUE LA FLECHA PERMANECE EN EL

AIRE.

t =  5.94 m/s /[tex]9.80 m/s^{2}[/tex] = 0.61 s

FINALMENTE ENCUENTRAS LA DISTANCIA HORIZONTAL TOTAL.

x = 32 m/s(0.61 s) = 19.5 m

Answer:

The Newton is used to measure gravitational force.

An object with a mass of 1 kilogram has a gravitational attraction to Earth of about 9.8 Newtons.

Explanation:

The two true correct statements about the unit of measurement called the Newton are ,

Newton used to measure gravitational force.

An object with a mass of 1 kilogram has a gravitational attraction to Earth of about 9.8 Newtons.

Therefore the correct answers are the option c and option D

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The mathematical expression for Newton's second law is as follows

F = ma

Where F represents the force.

The SI unit of force is Newton.

Newton used to measure gravitational force.

An object with a mass of 1 kilogram has a gravitational attraction to Earth of about 9.8 Newtons.

Thus, the correct answers are the option C and option D

To learn more about Newton's second law, refer to the link here;

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Answer:

160J

Explanation:

Given parameters:

Frequency  = 16Hz

Wavelength = 10m

Unknown:

Waves speed  = ?

Solution:

Waves speed is the product of frequency and wavelength;

  Waves speed  = fλ

f is the frequency

λ is the wavelength

Now insert the parameters and solve;

     Waves speed = 16 x 10  = 160J

Answer:

1st law.

Explanation:

Answer:

58.24 Km/h.

Explanation:

From the question given above, the following data were obtained:

Distance (d) = 495 Km

Time (t) = 8 h 30 mins

Speed (S) =?

Next, we shall express 8 hours 30 mins to hours.

We'll begin by convert 30 mins to hour.

60 mins = 1 h

Therefore,

30 mins = 30 mins × 1 h/ 60 mins

30 mins = 0.5 hour.

Thus,

8 h 30 min = 8 + 0.5 = 8.5 hours

Speed is define as the distance travelled per unit time. Mathematically, it is expressed as:

Speed = Distance /time

With the above formula, we can obtain the speed as shown below:

Distance (d) = 495 Km

Time (t) = 8.5 hour

Speed (S) =?

Speed = Distance /time

Speed = 495 Km / 8.5 hour

Speed = 58.24 Km/h

Thus, the speed is 58.24 Km/h.

Answer:

its A Weathering breaks down rocks; deposition leaves them in new places

Explanation:

Answer: I think c force

Explanation: