with the aid of a well labelled diagram discuss stability of objects​

Answer:

True

Explanation:

mass, length, time, electric current, temperature, luminous intensity and amount of substance

Answer:

a semi truck

Explanation:

A. 95 Cal is equivalent to 397480 J

B. The final speed of the object is 625.78 m/s

C. The final temperature of the water is 46.8 °C

A. Converting 95 Cal to Joules

1 Cal = 4184 J

Therefore,

95 Cal = 95 × 4184

Thus, 95 Cal is equivalent to 397480 J

B. Determination of the speed of the object

Kinetic energy (KE) = 397480 J

Mass (m) = 2.03 Kg

KE = ½mv²

397480 = ½ × 2.03 × v²

397480 = 1.015 × v²

Divide both side by 1.015

v² = 397480 / 1.015

Take the square root of both side

v = √(397480 / 1.015)

Therefore, the speed of the object is 625.78 m/s

C. Determination of the final temperature of the water

Mass of water (M) = 3.79 kg

Initial temperature of water (T₁) = 21.7 °C

Specific heat capacity of water (C) = 4186 J/KgºC

Heat (Q) = 397480 J

Q = MC(T₂ – T₁)

397480 = 3.79 × 4186 (T₂ – 21.7)

397480 = 15864.94 (T₂ – 21.7)

Clear the bracket

397480 = 15864.94T₂ – 344269.198

Collect like terms

397480 + 344269.198 = 15864.94T₂

741749.198 = 15864.94T₂

Divide both side by 15864.94

T₂ = 741749.198 / 15864.94

Therefore, the final temperature of the water is 46.8 °C

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The potential difference across lamp #2 is 4.5 volts.

Answer:

it's A.The remaining light bulbs go out.

Answer:

partículas estarían separadas

Explanation:

ya que con el calor las partículas se alborotan y con frío se congelan

Answer:

The movement, or a tendency to move, toward a center of gravity, as in the falling of bodies to the earth is called gravitation

Answer:

3 m/s

Explanation:

Kinetic energy of a body is given by the formula [tex]K= {1\over2} m v^2[/tex]. Let's replace everything we have and solve for what's left.

[tex]1125J = {1\over2}\cdot 250 kg \cdot v^2[/tex]

[tex]v^2 ={ 1125 \cdot 2 \over 250}}[/tex] or [tex]v= 3 {m \over s}[/tex]

The book's initial speed = 2.83 m/s

The mass of the textbook, m = 0.75 kg

The final speed of the textbook, v = 0 m/s (Since it comes to rest)

The distance covered by the book, d = 1.2 m

Coefficient of kinetic friction, [tex]\mu = 0.34[/tex]

The frictional force between the table and the book is calculated as:

[tex]f_k=-\mu mg\\\\ f_k=-0.34 \times 0.75 \times 9.8\\\\f_k=-2.499N[/tex]

The workdone by the textbook is calculated as:

[tex]W = Fd\\\\W=2.499(1.2)\\\\W=2.9988J[/tex]

According to the work-kinetic energy theorem:

Workdone by the book = Change in Kinetic energy

[tex]W = 0.5m(v^2-u^2)\\\\-2.9988=0.5 \times 0.75 \times (0^2-u^2)\\\\-2.99988=-0.375u^2\\\\u^2=\frac{-2.9988}{-0.375} \\\\u^2=7.9968\\\\u=\sqrt{7.9968}\\\\u=2.83m/s[/tex]

The book's initial speed = 2.83 m/s

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Answer:

D. Kinetic energy

hope this helps

Answer:

D. Kinetic energy

Explanation:

The combination of kinetic energy and potential energy is known as mechanical energy

[tex]{ \tt{}}[/tex]

Answer:

Ultrasound is used by bats to navigate (move) and catch prey. Ultrasonic squeaks are produced by bats. These squeaks ponder prey and then return to the bat's ear. This provides bats with information about the location of prey, allowing them to catch it.

Explanation:

Answer:

I am really sorry but I can't understand the question.

Can you translate the question to English?

Explanation:

(1) The voltage drop in the second resistor is 10 V.

(2) The voltage drop across each resistor will all double to match change in resistance.

The given parameters:

The total voltage in a series circuit is given as;

[tex]V_T = IR_1 + IR_2\\\\V_T = V_1 + V_2[/tex]

The voltage drop in the second resistor is calculated as follows;

[tex]V_2 = V_T - V_1\\\\V_2 = 15 - 5\\\\V_2 = 10 \ V[/tex]

(2)

The resistance of the circuit:

[tex]R = \frac{V}{I} = \frac{10}{2} = 5 \ ohms[/tex]

When the total resistance is doubled;

In series circuit, the current in each resistor is constant, the voltage drop is calculated as;

[tex]V = IR\\\\V = 2 (5+5)\\\\V = 20 \ V[/tex]

Thus, we can conclude that the voltage drop across each resistor will all double to match change in resistance.

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Answer:

C

Explanation:

C is i thing

The force required to start the given box in motion is 39.2 N.

The given parameters;

The force required to start the box in motion must be greater or equal to static frictional force.

The magnitude of the force is calculated as follows;

[tex]F = \mu_s F_n\\\\F = \mu_s mg\\\\F = (0.4) \times (10) \times (9.8)\\\\ F = 39.2 \ N[/tex]

Thus, the force required to start the box in motion is 39.2 N.

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Answer:

Explanation:

uk=0.3

us==00.4

f=10

ground acceleration =9.8

f=10×0.4×9.8=39.2

Answer:

If you hold a hot glass tumbler under cold water, it will crack

Explanation:

This is because the outer surface of the glass comes in direct contact with cold water and contracts more compared to the inner surface.

This is one example I know.

Answer:

Q andA : Density of an irregular shape

1: the density of something is just th mass divided by the volume:D=m\V

2: As described in the previous question the density is given by D= M\V

3: the density just means how much mass per volume.

Answer:

Explanation:

The mass of an object given it's force and acceleration can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{15}{5} = 3 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

It is a renewable resource as it renewably heats up water to a high temperature. Geothermal energy is more environmentally friendly than conventional fuel sources such as coal and other fossil fuels. In addition, the carbon footprint of a geothermal power plant is low.

Disadvantages: If dug deep underground, it can cause earthquakes. generates waste, reservoirs require proper management, it's location-specific, has high initial cost

Answer:

F=10,000N

Explanation:

F=ma

m=5000kg

a=2m/s^2

[tex]F=(5000kg)*(2m/s^{2} )\\\\\\\\F=10000N[/tex]

Answer:

[tex]\boxed {\boxed {\sf 10,000 \ Newtons}}[/tex]

Explanation:

We are asked to find the force of Annabella's car when it hits a tree.

According to Newton's Second Law of Motion, force is the product of mass and acceleration.  Therefore, it is calculated using the following formula:

[tex]F=ma[/tex]

The mass of the car is 5000 kilograms and the acceleration is 2 meters per second squared.

Substitute the values into the formula.

[tex]F= (5000 \ kg)(2 \ m/s^2)[/tex]

Multiply.

[tex]F= 10,000 \ kg*m/s^2[/tex]

Convert the units. 1 kilogram meter per second squared is equal to 1 Newton, so our answer of 10,000 kg*m/s² is equal to 10,000 Newtons.

[tex]F= 10,000 \ N[/tex]

Annabella's car hits the tree with a force of 10,000 Newtons.

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The Correct choice is ~

D. 18.0 Newtons

because the resultant force can't exceed 16 Newtons ~

Answer:

Mechanical energy is the ordered movement of the molecules as a single unit. Thermal energy is the random movement of the molecules. Mechanical energy can be 100% converted to thermal energy, but thermal energy cannot be fully converted to mechanical energy.

Answer:

In an "elastic" head on collision the objects will exchange velocities:

The collision was elastic - Also energy in = energy out for an elastic collision.

Answer:

o o o G 30 30.0 30.0 5. How do the direction of these two post-explosion momentum vectors compare? 6. Use your answer to question +4, your answer to question #5, and the fact that momentum is a vector quantity to determine the post-explosion momentum of the system of two carts (i.e. the vector sum of the momentum of the two carts). 7. Use your answers to question #3 and question "6 to explain how one can say that system momentum is conserved in an explosion? S. Pick three different trials that have a different mass ratio. For each trial that you pick, fill in the table below. V/V Trial m/m 9. Analyze the data in the table above. State a rule that describes how to predict the relative velocities of the two carts after the explosion

Explanation:

Answer:

Every Sentra is powered by a 149-hp 2.0-liter four-cylinder engine that pairs with a continuously variable automatic transmission (CVT) and front-wheel drive.

Explanation:

The advantages  of using nuclear energy are: carbon-free, Small land footprint, High power output, Reliable energy source but the disadvantages of using nuclear energy are Very high upfront costs, Nuclear waste, Malfunctions can be catastrophic.

The energy source located in the nucleus, or core, of an atom is known as nuclear energy. Once captured, this energy can be used to generate electricity by causing nuclear fission in a reactor by either nuclear fusion or nuclear fission, two different types of atomic reactions.

The latter causes atoms to divide into two or more nuclei when uranium is utilised as fuel. The heat produced by the fission energy causes a cooling agent, typically water, to boil. The steam produced by boiling or pressurized water is then sent into turbines, which spin and produce power. Uranium is the fuel used in reactors to create nuclear fission.

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Nuclear energy is the form of energy released from the nucleus, the core of atoms released from protons and neutrons. Nuclear energy is produced by two types and they are nuclear fission and fusion.

Nuclear fusion is the process of fusing two lighter nuclei and nuclear fission is the splitting of heavier nuclei into two lighter nuclei and releasing energy is called nuclear energy.

The advantage of nuclear energy is it produces more amount energy from less fuel and produces low pollution. No emission of greenhouse from nuclear energy.

The disadvantage of nuclear energy is, that radioactive waste is the result of nuclear power plants which is a big threat to the environment. It is a not form of renewable energy. It involves huge investment and is not economical.

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