Pls answer……………………..

Answer:

  (D) 4×10⁻³

Explanation:

The difference is ...

  0.2050 -0.2014 = 0.0036 = 3.6×10⁻³

The number 0.205 is expressed to a precision of 1×10⁻³, so the result of the subtraction operation cannot be considered to be more precise. It must be expressed as ...

  4×10⁻³ . . . . matches choice D

_____

Additional comment

This is physics, not math. In the physical sciences, most numbers must be considered to be measurements. (A few are definitions.) Hence, the rules of significant figures and precision apply to the results of arithmetic operations. This problem is a good illustration of what happens when computing small differences of large numbers. We start with 3 significant figures in 0.205, and end up with 1 significant figure in 0.004.

Answer:

600000000 ergs

Explanation:

Formula - multiply the energy value by 1e+7

Answer:

Explanation:

Momentum is equal to mass times velocity:

p = mv; therefore,

p = .200(28) and

p = 5.6 [tex]\frac{kg*m}{s}[/tex]

Answer:

Refer to the attachment!~

Answer:

HLW ITS JESS BREGOLI

YOUR ANSWER IS HERE

At different points on Earth's surface, the free fall acceleration ranges from 9.764 m/s2 to 9.834 m/s2[2] depending on altitude and latitude, with a conventional standard value of exactly 9.80665 m/s2 (approximately 32.17405 ft/s2). Locations of significant variation from this value are known as gravity anomalies.

Explanation:

HOPE IT MAY HELP YOU !!

Answer:

b

Explanation:

Answer:

The answer is Speed=2m/s

Explanation:

S=D/T

S=10m/5s

S=2m/s

When the brake is applied to the car and comes to rest after some time is an example of an object that is slowing down.

The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

1. When the brake is applied to the body and comes to rest after some time is an example of an object that is slowing down.

2. When a person accelerates the car and the velocity is increasing is an example of speeding up.

3. An object moves in a circular motion moving at a constant speed but changing direction,

4. Acceleration is the rate of change of velocity. If the change in the velocity is constant the acceleration is zero is an example of moving at a constant velocity with zero acceleration.

To learn more about acceleration, refer to the link;

https://brainly.com/question/2437624

#SPJ1

Answer:

only long-range force that affects all particles is the gravitational force.

Explanation:

In nature there are four fundamental forces: nuclear, weak, gravitational and electrical.

The last two are long-range, that is, the forces are zero for infinite distances, the current gravitational on all the particles and the electric one acts on the charged particles, without the chosen charge it is zero, the forces is also zero.

Consequently the only long-range force that affects all particles is the gravitational force.

Answer:

oxygen

Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis .

Explanation:

yw!

Answer:

PE = mgh

Explanation:

The equation of potential energy is mgh.

Answer: Es importante conocer el sistema ingles porque luego podemos cmmunicar con otros que solo abalan ingles y les podes ayudar con espanol si solo abaln ingles

Explanation:

Answer:

• All Of The Above

Hope it helps uh

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Answer:

Las limitaciones de un modelo o prototipo son;

1) Los parámetros ambientales (donde se opera el modelo, prototipo o producto) son diferentes y, por lo tanto, pueden producir relaciones y factores ambientales que serán diferentes de los factores ambientales y las relaciones del objeto real.

2) El análisis del problema puede ser inadecuado

3) La posibilidad de falta de satisfacción del cliente con un modelo, preferencia por la demostración real del producto.

4) Reproducción inexacta del entorno del producto durante la prueba del modelo

5) El factor de costo del modelo

6) Mayor complejidad introducida por el modelo / prototipo al análisis de la solución

Explanation:

El modelo o prototipo es la presentación del diseño articulado, construido para demostrar el producto real con el propósito de encontrar la existencia de errores en el diseño que serían corregidos, antes de que se realice la producción real

Answer:

we have to find the thickness of a single sheet in mm.

so,

50 = 0.5 cm

we know that

0.5 cm = 5 mm

NOW THICKNESS OF 50 SHEETS OF PAPER IS 5mm

•°• thickness of one sheet of paper will

5/50

= 0.1 cm

we have to find the answer in mm so

0.1 cm = 1 mm

Explanation:

hope it may help you

Answer:

a. Acceleration, a = 7.5 m/s

b. Distance, S = 15 meters

c. Force = 7500 Newton

Explanation:

Given the following data;

Mass = 1000 kg

Initial velocity = 0 m/s (since it's starting from rest).

Final velocity = 54 km/h

Time = 2 secs

Conversion:

54 km/h to m/s = 54*1000/3600 = 15 m/s

a. To find the following acceleration;

Mathematically, acceleration is given by the equation;

[tex]Acceleration (a) = \frac{initial speed - final speed}{time}[/tex]

Substituting into the formula, we have;

[tex] Acceleration = \frac{15 - 0}{2}[/tex]

[tex] Acceleration = \frac{15}{2}[/tex]

Acceleration, a = 7.5 m/s

b. To find the distance, we would use the second equation of motion.

[tex] S = ut + \frac {1}{2}at^{2}[/tex]

Where;

Substituting into the equation, we have;

[tex] S = 0*2 + \frac {1}{2}*(7.5)*2^{2}[/tex]

[tex] S = 0 + 3.75*4[/tex]

[tex] S = 15 [/tex]

Distance, S = 15 meters

c. To find the force, we would use the following formula;

[tex] Force = mass * acceleration [/tex]

[tex] Force = 1000 * 7.5 [/tex]

Force = 7500 Newton

Answer:

1

Explanation:

V=2*2*0.2=0.8m^3

d=m/v 1000*0.8=800kg

800=700+100(n)            (n for barrels)

n=1

This question deals with the concept of buoyancy. This can be solved by calculating the buoyant force.

"1" barrels, each of mass 100 kg, could be placed on the raft before it sinks to the surface water.

First, we need to calculate the buoyant force on the raft due to water. This force is equal to the weight of the volume of water equal to the volume of the raft.

Buoyant Force = (Volume of Raft)(Density of Water)(g)

Buoyant Force = [(2 m)(2 m)(0.2 m)][1000 kg/m³](9.81 m/s²)

Buoyant Force = (0.8 m³)(1000 kg/m³)(9.81 m/s²)

Buoyant Force = 7848 N

For the raft to sink the weight of the raft combined with the weight of barrels must exceed the buoyant force. Now, we will calculate the weight of raft and barrels and equate it with the buoyant force.

[Mass of Raft + (No. of Barrels)(Mass of 1 Barrel)][g] = Buoyant Force

[700 kg + (No. of Barrels)(100 kg)][9.81 m/s²] = 7848 N

(No. of Barrels)(981 N) = 7848 N - 6867 N

[tex]No. of Barrels = \frac{981\ N}{981\ N}[/tex]

No. of Barrels = 1

The attached picture shows the concept of buoyancy.

Learn more about buoyancy here:

https://brainly.com/question/21990136?referrer=searchResults

Answer:

Insertion

Explanation:

It causes a frameshift.

Complete question:

A college dormitory room measures 14 ft wide by 13 ft long by 6 ft high. Weight density of air is 0.07 lbs/ft3. What is the weight of air in it under normal conditions?

Answer:

the weight of the air is 76.44 lbs

Explanation:

Given;

dimension of the dormitory, = 14 ft by 13 ft by 6 ft

density of the air, = 0.07 lbs/ft³

The volume of the air in the dormitory room = 14 ft x 13 ft x 6 ft

                                                                          = 1092 ft³

The weight of the air = density  x  volume

                                   = 0.07 lbs/ft³  x  1092 ft³

                                   = 76.44 lbs

Therefore, the weight of the air is 76.44 lbs

Answer:

The velocity of an object thrown straight up would be zero at maximum height (just before it starts falling)

Find the initial velocity:

Time = speed/gravitational constant.

Speed = gravitational constant * time

Initial speed = 9.81*3.16

Initial speed = 30.9996

Maximum height:

h = Vinitial^2/ 2g

h = 960.9752/ 2*9.81

h = 48.979368

D)

Displacement after time = vinital * t - 0.5*g*t^2

So: 32.373

Answer:

22

Explanation:

Answer:

45.5 v

Explanation:

I = 1.3 A

R = 35 Ω

V = I * R

V = 1.3 * 35 = 45.5 v

it occur kinetic energy

when breaking in a hybrid

vehicle.

hope it helps

Answer:

it occur kinetic energy when breaking in a hybrid

vehicle .

hope it is helpful to you ☺️

Answer:

a

Explanation:

Fan speed is the answer

Answer:

The push switch is closed and the door unlocks. ... The switch completes the circuit and a current flows through the coil. The coil becomes an electromagnet and its iron core becomes magnetised. The iron bolt is attracted to the electromagnet.

Explanation:

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Answer:

According to Carl Sagan's Baloney Detection Kit notes

"Whenever possible there must be independent confirmation of the facts"

Independent confirmation by other scientist is to ensure that the observation of the over 40% efficient solar panel is repeatable

It is also important to avoid accepting the given mandates at face value and accepting that the scientist considered all factors when taking the results or that the original developers has assigned others to check their findings before the introduction of the new type of solar cell

Explanation:

Explanation:

Two uses of convex mirror are: (i) It is used as a rear view mirror in vehicles. (ii) It is used as a vigilance mirror. (iii) it is used as a reflector in street lamps.

Explanation:

Inside buildings. You might have noticed that large office buildings, stores, hospitals, and other many other buildings have convex mirrors in the corners. ...

Sunglasses. We might have used sunglasses many times. ...

Vehicle mirrors. ...

Magnifying glasses. ...

For security purposes. ...

Street light reflectors.

Answer:

youd use a thermometer. this can be used to measure the temperature of a solid such as food, a LIQUID such as water, or a gas such as air.

Explanation:

Answer:

True

Explanation:

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them

Answer:

True po sagot sabihin mo kong mali