When synthetic materials are made from natural materials, the atoms that make
up the original substances are regrouped into new molecules. *
True
False

Answer:

1) Mass of Egg Chamber → 35 g = 35 g × 1 kg/(1000 g) = 0.035 kg

2) Average Mass of Grade A Egg       →    56.7 g = 0.056 kg

3) Calculated Mass

Drop Chamber + Egg → (35 + 56.7) g = 91.7 g = 91.7 g × 1 kg/(1000 g) = 0.0917 kg

4) Time of Drop → 1.5 seconds

5) Maximum Velocity of Drop Chamber (v = g·t) → v = 9.8 m/s² × 1.5 s = 14.7 m/s

6) Maximum Momentum of Drop Chamber

(P = m·v) (right before hitting the ground) → p = 0.0917 kg × 14.7 m/s = 1.34799 kg·m/s

7) Final End Momentum of Drop Chamber → After landing, velocity v = 0 m/s

(p = m·v after landing)   [tex]{}[/tex]                              ∴ p = m·v = m × 0 m/s = 0 kg·m/s

8) Impulse on Impact            →   [tex]{}[/tex]             (0 - 1.34799) kg·m/s = 1.34799 kg·m/s

(Δm·v = Final - Initial)

9) Force on Impact    [tex]{}[/tex]           →                 F·t = Δm·v = 1.34799 N·s

(F·t = Δm·v)

Explanation:

Answer:

Explanation:

It is the energy an object has on its virtue of mass.Because the energy acting on the object is working being done to keep that object in the position is it.

Answer:

the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.

Explanation:

This exercise asks to describe the inflation situation of a spherical fultball.

Initially the balloon is deflated, therefore the internal pressure is equal to the pressure of the air outside, atmospheric pressure, when it begins to inflate the balloon with a pump this creates a pressure in the inlet valve and as it is greater than the pressure inside, the air enters it, this is repeated in each filling cycle, manual pump.

When the ball is full we have two forces, the one created by the external walls and the one aired by the pressure of the pump, these forces are directed towards the inside, but the air molecules exert a pressure towards the outside, which translates into a force. When these two forces are equal, the pump is no longer able to continue introducing air into the balloon.

Consequently the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.

Answer: 1350J

Explanation:

To solve this, we are going to use the formula for calculating potential difference which is:

Potential difference (V) = Work done (W) / Total charge (C)

Therefore,

9 volts = Work done / 150

Work done = 150 × 9 = 1350J

Answer:

A. F₀d

Explanation:

The formula for work done on an object is given by:

w= f*d

Work done towards the positive direction is given by ;

Work done under the trapezoid shaped area:

1/2 {a+b} h = 1/2 { 2d + d } F₀

W=3/2dF₀

Work done on the triangle shaped part

W= 1/2 * b * h

W= 1/2 * d * -F₀ =  -1/2dF₀

The net work done :

3/2dF₀ -1/2dF₀ = 1dF₀

Answer:

Voltage difference V = 18 volt

Explanation:

Given:

Resistance R = 6 ohms

Current charge I = 3 amps

Find:

Voltage difference V

Computation:

Voltage difference V = [Current charge][Resistance]

Voltage difference V = 6 x 3

Voltage difference V = 18 volt

The direction of the break dancer is always changing hence we can say that the break dancer is accelerating.

The term acceleration means change of velocity with time. It refers to the time taken for the velocity of a body to change in a specified direction. Recall that velocity takes direction into account.

The direction of the break dancer is always changing hence we can say that the break dancer is accelerating since his direction is changing even though the speed is constant.

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Answer:

6.8kg

Explanation:

170/25=6.8

Answer: 1.72J

Just figured this out a while ago

Answer:

15 watt

Explanation:

Power is the rate at which work is done.

This means you divide the work done with the amount of time used to perform the work.

The formula for Power is : P = W/t  where;

W= work done in J = 45

t= time in seconds = 3 sec

P= 45/ 3 = 15 watt

Answer:

30 ms⁻¹

Explanation:

Given:

108kmh⁻¹

Find:

Change into ms⁻¹

Computation:

⇒ 1 km = 1,000 m

⇒ 1 hour = 60 x 60 = 3,600 sec

So,

⇒ 108[1,000/3,600]

30 ms⁻¹

Answer:

Explanation:

Lateral inversion is a phenomenon where the right seems to be on the left and left seems to be on the right.It occurs due to the direction is reflecting of a direct surface.An example of this is a mirror/window.A mirror is a better example to explain this! Hope this helps lemme know if u dont

Answer:

The hydraulic lift and the hydraulic brake are virtually the same machine. Both of them use some means of applying pressure to a hydraulic fluid that forces a piston or pistons elsewhere to move outward with greater force. There are only two differences between the hydraulic lift and the hydraulic brake. One is that all the push is delivered by one cylinder in a lift and by either two or four cylinders in a brake system. The other difference is that in a hydraulic lift the pump moves the lift piston out in a series of movements while in a brake system the brake pedal moves the brake pistons out in one short movement.

As fluid is forced into the lift cylinder it forces the lift piston upward. The lift cylinder is a lot wider than the pump cylinder. This means that the area of the lift piston is a lot greater than the area of the pump piston. Because Pascal's Principle guarantees that the pressure in a fluid is the same everywhere and the area that pressure is applied over is greater at the lift cylinder, the force applied by the lift cylinder must be greater. The hydraulic lift takes the long low-force motions of the pump piston and converts then into short high-force motions of the lift cylinder.

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Hydraulic brake and Hydraulic lift uses fluid to transmit power from one end to another.

hydraulic brake stops motion and hydraulic lift create motion

The major difference is  hydraulic brake used fluid to stop motion, while the  hydraulic lift used fluid to create/cause motion that is transport items/persons from one end to another.

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Answer:

Anti-predator adaptation.

Explanation:

Their habitat is the forest and woodland. Their way of life fits into the anti-predator adaptation but I'm not 100% sure that I'm correct.

Answer:

c

Explanation:

I makes the most sense in math. if you put a 3 in the m box it will be the same. So all they did is take out the 3 in the m box

Answer:

False.

Explanation:

A good health can be defined as the state of well-being in which all of the components of an individual's health are in balance. These state of well-being comprises of six (6) important components and they are;

1. Physical: this is a measure of the state of an individual's body or the way the body functions. It is enhanced by eating right, working out or exercising, avoiding drugs and alcohol, maintaining a good body mass index etc.

2. Emotional: this deals with the state of an individual's mind being void of worries, negativity etc.

3. Social: this involves keeping a good relationship with friends, family and many others around.

4. Environmental: it deals with maintaining a hygienic surrounding, that is devoid of pollutants.

5. Mental or intellectual: avoiding unnecessary stress and anxiety while dealing or coping with the realities of life.

6. Spiritual: it encompasses belief systems, values, ideals, morality etc.

When an individual is able to balance all of these above mentioned components, then he or she is said to be healthy.

Hence, making good lifestyle choices will not and cannot prevent all diseases because some diseases are hereditary in nature i.e they can be transferred from a parent to their offspring or generation to another through genetics. Some examples of hereditary diseases are haemophilia, sickle-cell anaemia, thalassemia, cystic fibrosis, etc.

Answer:

false on edge

Explanation:

Force, pressure, and charge are all what are called derived units. They come from algebraic combinations of base units, measures of things like length, time, temperature, mass, and current. Speed, for instance, is a derived unit, since it's a combination of length and time in the form [speed] = [length] / [time] (miles per hour, meters per second, etc.)

Force is defined with Newton's equation F = ma, where m is an object's mass and a is its acceleration. It's unit is kg·m/s², which scientists have called a Newton. (Example: They used 9 Newtons of force)

Pressure is force applied over an area, defined by the equation P = F/A. We can derive its from Newtons to get a unit of N/m², a unit scientists call the Pascal. (Example: Applying 100 Pascals of pressure)

Finally, charge is given by the equation Q = It, where I is the current flowing through an object and t is how long that current flows through. It has a unit of A·s (ampere-seconds), but scientist call this unit a Coulomb. (Example: 20 Coulombs of charge)

Explanation:

The fundamental units are such types of units that are not dependent upon any other units. In this problem, we need to find the units that need to be convert before being used for a calculation.

Option (1) m

m stands for meter. It is one of the fundamental unit. It should remains the same.

Option (2) cm

cm stands for centimeter. If a unit is in cm, then it must be converted to meter using the conversion i.e. [tex]1\ cm=100\ m[/tex].

Option (3) ks

ks stands for kilo second. If a unit is in ks, it must be converted to second (s) using the conversion i.e. [tex]1\ ks=1000\ s[/tex].

Option (4) kg/m³

The SIT unit of density is kg/m³. It is unit that is derived from the fundamental unit. It should remains the same.

Answer:

So, the options that need to be converted before being used for a calculation are (b) and (c).

Reference:

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Answer:

It is induction

Answer:

Lauch velocity (u) = 26.15 m/s

Lauch Angle (θ) = 35°

Explanation:

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

Range (R) = 65 m

Time of flight (T) = 3 s

Acceleration due to gravity (g) = 10 m/s²

Lauch velocity (u) =?

Lauch Angle (θ) =?

R = u²Sin2θ /g

65 = u² × Sin2θ /10

Recall:

Sin2θ = 2SinθCosθ

65 = u² × 2SinθCosθ / 10

65 = u² × SinθCosθ / 5

Cross multiply

65 × 5 = u² × SinθCosθ

325 = u² × SinθCosθ .....(1)

T = 2uSinθ / g

3 = 2uSinθ / 10

3 = uSinθ / 5

Cross multiply

3 × 5 = uSinθ

15 = u × Sinθ

Divide both side by Sinθ

u = 15 / Sinθ....... (2)

Substitute the value of u in equation (2) into equation (1)

325 = u² × SinθCosθ

u = 15 / Sinθ

325 = (15 / Sinθ)² × SinθCosθ

325 = 225 / Sin²θ × SinθCosθ

325 = 225 × SinθCosθ / Sin²θ

325 = 225 × Cosθ / Sinθ

Cross multiply

325 × Sineθ = 225 × Cosθ

Divide both side by Cosθ

325 × Sineθ / Cosθ = 225

Divide both side by 325

Sineθ / Cosθ = 225 / 325

Sineθ / Cosθ = 0.6923

Recall:

Sineθ / Cosθ = Tanθ

Tanθ = 0.6923

Take the inverse of Tan

θ = Tan¯¹ 0.6923

θ = 35°

Substitute the value of θ into equation (2) to obtain the value of u.

u = 15 / Sinθ

θ = 35°

u = 15 / Sin 35

u = 15 / 0.5736

u = 26.15 m/s

Summary:

Lauch velocity (u) = 26.15 m/s

Lauch Angle (θ) = 35°

Answer:

Well its what makes a salad taste good.

Answer:

circuit A

Explanation:

because it is not a complete circuit

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Answer:

Circuit A (answer C), does not allow current to flow, because there is no connection between the charge and ground (or positive and negative).

Answer:

The x represents the reference point on a motion map

Explanation:

-Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models)

Answer:

The x represents the reference point on a motion map. Explanation; -Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models).

Explanation:

Answer:

the work done by friction is 12 J.

Explanation:

Given;

mass of the car, m = 2 kg

initial speed of the car, u = 4 m/s

final speed of the car, v = 2 m/s

The work done by friction is equal to change in kinetic energy of the car,

W = ΔK.E

W = ¹/₂m(v² - u²)

W = ¹/₂ x 2 (2² - 4²)

W = -12 J (the negative sign indicates that it is a wasted energy)

Therefore, the work done by friction is 12 J.

Answer:

If the velocity is constant, then there is no acceleration. That is, the value of the acceleration is 0.

Explanation:

Answer:

Infared light

Explanation: