what type of circuit is shown?

A. open parallel circuit
B. open series circuit
C. closed parallel circuit
D. closed series circuit​

Explanation:

SUPONIENDO QUE LA ACELERACIÓN DE LA GRAVEDAD ES [tex]9.80 m/s^{2}[/tex]

USANDO LA SEGUNDA LEY DE NEWTON:

m = 80.0 N/[tex]9.80 m/s^{2}[/tex] = 8.16 kg

Answer:

8kg

Explanation:

using the formula Force(F)=mass(m)×acceleration(a),

since we are finding the mass of the object,we will make m the subject by dividing both sides by a.

you will now get m= f/a

the acceleration on Earth is usually 10m/s

m= 80/10

m= 8/1 which is also 8kg

Answer:

c

Explanation:

bc the molecules are not so tightly packed it can slide past one another or flow to a new location.

Answer:

One positive and one negative

Answer:

open series circuit, (c)

Explanation:

Answer: 25

Explanation:

Answer:

General Howe and the British regrouped after losing the hill.

Explanation:

British forces marched to Breed's Hill on 17 June under the order of Major General William Howe. When the British Army marched in waves toward the Americans, Colonel William Prescott issued orders to avoid the fire until British troops came to clear sight in an attempt to protect the dwindling supply of ammunition to the Americans. Many British soldiers have been killed or maimed; the remainder has withdrawn down the hill. In a second wave, the British stormed the hill once again but met with the same fate. So they withdrew again, suffering a large number of casualties.  Eventually the British took the hill in the third attempt but at a great cost of casualties.

Answer:

6 m/s^{2}

Explanation:

The formula for force is

F = mass x acceleration

F = 12 N

mass = 2 kg

So, you can change the formula to solve for acceleration.

acceleration = F / mass

a = 12 N / 12 kg

a = 6 m/s^{2}

Answer:

The ball will land 12.5m before that hole.

Explanation:

The motion of the golf ball can be considered as a projectile motion, where first its height is 0, then it keeps increasing to a maximum point, after which its height starts decreasing again and hits the ground (height becomes 0 again).

We need to calculate the Range (horizontal distance) of the ball which is given as:

[tex]R=\frac{v_i^2{\cdot}sin2\theta}{g}[/tex]

Where

v(i) = initial velocity = 35 m/s

θ = Initial angle = 35°

g = gravitational acceleration = 9.8 m/s

Substitute in the given formula to find Range:

[tex]R=\frac{(35)^2\cdot{sin}(2)(35)}{9.8}\\R=\frac{(1225)(0.94)}{9.8}\\R = 117.5~m[/tex]

Distance between the hole and position where ball lands = 130m - 117.5m = 12.5m

Answer:

a - construct tsunami models

Explanation:

scientists cant effect on earthquakes directly, so its not 2 or 3

for 4 it wont help that much to study waves, so its better for them to make model of tsunami waves

Answer:

power=[tex]\frac{work done}{time taken}[/tex]

power=[tex]\frac{60joules}{15seconds}[/tex]

power=4J/s

Answer:

1. There would be two different tables, one arranged by mass and the second arranged by the chemical reactions the elements are known for

2. a. The difference is that the atomic mass is fixed and is 2 or more times the atomic number which is variable

b. The atomic number is the bases of the periodic table because it reflects the unique identity as well as the chemical and physical properties of the atoms more than the atomic number

3. The table formed by the atomic mass is not representative of the chemical properties of the elements

Explanation:

1. The elements would have been arranged by mass and by order of reaction such that there would be two tables where the first table will list all the known elements arranged by mass and the second table will group the elements in the order in which they can react or the kinds of compounds they can form such as oxides, nitrides etc

2. a. The atomic number, Z,  is determined by the definitive number of protons contained in the nucleus of an atom and it is used for the classification of an atom as a particular element based on the its equivalent atomic number

The atomic number defines the chemical behavior of an an element because it is equal to the number of electrons present in a neutral atom

The atomic mass or mass number, A, is the total of the mass of the protons and the neutrons present in an atom

The neutron is electrically neutral, allowing its quantity to vary without significantly impacting on the chemical behavior of the atom, hence two different elements can have the same number of neutrons

Therefore, the difference is that the atomic mass is fixed and is 2 or more times the atomic number which is variable

b. The atomic number is the bases of the periodic table because it reflects the unique identity as well as the chemical and physical properties of the atoms more than the atomic number

3. If the periodic table was arranged according to the atomic mass, we would have;

Groups

H

He      Li        B         C         O       F        Na      

Be      N       Ne        Mg      S        Ar      Sc

O        Si      Ca         Ti        Zn     Se      

It is seen that the above table is not representative of the chemical properties of the elements.

Answer:

The de-Broglie wavelength of the nitrogen molecule is 0.0272 nm

Explanation:

The mass, m, of the nitrogen molecule, N₂ = 14.0076u = 28.0152 × 1.66 × 10⁻²⁷ kg

[tex]v_{rms}[/tex] of N₂ = 523 m/s

The de-Broglie wavelength is given as follows;

[tex]de-Broglie \, wavelength = \dfrac{h}{m\times v_{rms}}[/tex]

Where:

h = Planck's constant = 6.62607004 × 10⁻³⁴ m²·kg/s

Plugging in the values, we have;

[tex]de-Broglie \, wavelength = \dfrac{6.62607004 \times 10^{-34}}{28.0152 \times 1.66 \times 10^{-27}\times 523} = 2.72\times 10^{-11} \, m[/tex]

Hence, the de-Broglie wavelength of the nitrogen molecule = 0.0272 nm.

Answer:

The fundamental wavelength of the vibrating string is 1.7 m.

Explanation:

We have,

Velocity of wave on a guitar string is 344 m/s

Length of the guitar string is 85 cm or 0.85 m

It is required to find the fundamental wavelength of the vibrating string. The fundamental frequency on the string is given by :

[tex]f=\dfrac{v}{2l}\\\\f=\dfrac{344}{2\times 0.85}\\\\f=202.35\ Hz[/tex]

Now fundamental wavelength is :

[tex]\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{344}{202.35}\\\\\lambda=1.7\ m[/tex]

So, the fundamental wavelength of the vibrating string is 1.7 m.

8.4 × 10⁵ Joules of heat energy can be saved assuming that there is no heat exchange between the washing machine and the environment.

Heat energy is the result of movement of tiny particles called as atoms, molecules, or ions in solids, liquids and gas substances. Heat energy can be transferred from one object to another object.

Let m denote the mass of water and  the specific heat capacity of water. The energy required to raise the temperature of that much water by  would be:

Q = m × c × ΔT

Washing at 30°C would require a temperature change of

ΔT = 30°C - 16°C = 14°C

Washing at 50°C would require a temperature change of

ΔT = 50°C - 16°C = 34°C

In both situations, c = 4.2 × 10³J.kg/ °C while m = 10kg.

Calculate the energy required in either of the situations as:

Washing at 30°C:

Q(30°C) = c × m × ΔT

Q = 4.2 × 10³J.kg/ °C × 10kg × 14°C

Q = 588000 Joules

Washing at 50°C :

Q (50°C) = c × m × ΔT

Q = 4.2 × 10³J.kg/ °C × 10kg × 34°C

Q = 1428000 Joules

1428000 Joules - 588000 Joules = 8.4 × 10⁵ Joules

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Answer: F = 19.2 N

Explanation: Given that the initial Force = 3.6N

The formula involved is

F = GMm/r^2

Substitute the force F

3.6 = GMm/r^2

If one of the masses is tripled and the distance between the masses is quadrupled. We have

3.6 = (G × 3Mm)/(4r)^2

Where G will be constant.

3.6 = 3GMm/16r^2

Separate the fraction of number

3.6 = 3/16 × GMm/r^2

Make GMm/r^2 the subject of formula

(3.6 × 16)/3 = GMm/r^2

19.2 = GMm/r^2

Therefore, the new force of attraction is 19.2 N

Answer:

The correct option is;

D) Both objects exert the same magnitude of force on each other due to Newton's 3rd law

Explanation:

Newton's third law of motion states that for every action there is an equal and opposite reaction

Since the bowling ball is rolled down the alley while the pin is displaced at such a speed that it flew, we have that the velocity of the rolling ball, v₁ is less than the velocity of the flying pin v₂

Therefore, whereby force = Rate of change of momentum produced we have;

The change of momentum of the ball = m₁×(v₁ - v₁ₐ)

The change of momentum of the pin = m₂×(0 - v₂)

Hence since the pin change in movement (flight) was more suddenly than the slowing down of the ball, the action of the rolling ball is equal to the reaction of the flying pin.

Answer:

c no definite shape and volume

The one that is the characteristic of gas is that it has no definite shape or definite volume. The correct option is A.

Gases have a number of distinctive characteristics. The fact that they don't have a set shape means that they can fit into and take on the shape of any container that they occupy.

Due to their high compressibility, gases can occupy a variety of spaces. Because of this, they lack a fixed volume.

Gaseous particles have the potential to disperse and diffuse because they are constantly moving, moving erratically and quickly.

Additionally, compared to liquids and solids, gases have lower densities. They also have traits like high thermal expansion and the capacity to mix and separate with ease.

Thus, the correct option is A.

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Answer:

It's like the Earth pulling on you and keeping you on the ground. That pull is gravity at work. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects.

Explanation:

Answer:

Mercury

Explanation:

Mercury streches when it is hot so that is why it goes up when the temperature is higher

Answer:

The description of the given scenario is described in the explanation segment below.

Explanation:

The energy transferred could be determined by using the following equation or formula:

   ⇒  Energy transferred = charge × potential difference

The equation that links energy transferred, charge flow, and  potential difference (voltage) is: [tex]E = qV[/tex]

In Science, when a potential difference (voltage) is applied on an object, it gains some potential energy, which is then converted to kinetic energy.

The kinetic energy possessed by the object is responsible for the movement of electrons from one point to another in an electric field.

Hence, the quantity of energy in an electric circuit is directly proportional to the charge and potential difference (voltage) applied on the object.

Mathematically, the energy transferred in an electric field is given by the formula:

[tex]E = qV[/tex]

Where:

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Answer:

It is a change in velocity over a period of time.

Explanation:

Answer:

In physics, special relativity (also known as the special theory of relativity) is the generally accepted and experimentally confirmed physical theory regarding the relationship between space and time.

We need special relativity in order to solve for quantum gravity. ... The earth was expanding (thus, it's mass was expanding) through space in all directions in order to create gravity **OOPS** forgot, specifically at an accelerating rate… OR… The space must be pushing toward or down on the earth, from every direction.

Answer:

The theory of special relativity explains how space and time are linked for objects that are moving at a consistent speed in a straight line. ... The theory of special relativity was developed by Albert Einstein in 1905, and it forms part of the basis of modern physics.

Explanation:

Answer: D.

some substances hold onto electrons tighter than other

substances, so they get the extra electrons.

Explanation: When two substances are in contact by rubbing each other, there will be friction between them. The friction will stimulate what we called - Thermal energy. And what thermal energy does is the disrupt the bonding force or enhance it.

We can therefore conclude that some substances hold onto electrons tighter than other substances, so they get the extra electrons. Because at neutral state of the substance, the number of protons is equal to the number of electrons.

Answer:

1.) Momentum = 10 units

2.) Because of gravity

Explanation:

According to the Newton 3rd law of motion, we realise that in collision, momentum is always conserved.

So, if a ball is thrown upward with ten units of momentum initially, the “recoil” momentum of the earth will be approximately 10 units of momentum. We do not feel this because of the gravity.