It’s due by tonight, please show work.

Given parameters:

Current of CD player  = 0.1A

Source Voltage = 4V

Unknown:

Resistance  = ?

Solution:

Based on Ohm's law;

           V  = I R;

  V = voltage

   I = current

   R = resistance

Input the parameters and solve;

          4 = 0.1 x R

              R  = [tex]\frac{4}{0.1}[/tex]   = 40ohms

The resistance of the CD player is 40ohms

Let b be the height of the building, and y the height of the ball at time t, given by

y = b - 1/2 gt²

where g = 9.8 m/s² is the magnitude of the acceleration due to gravity.

It takes the ball 8 s to reach the ground, at which point y = 0, so that

0 = b - 1/2 (9.8 m/s²) (8 s)²

b = 1/2 (9.8 m/s²) (8 s)²

b = 313.6 m

Answer:

we are going to focus on just a few. • Heat energy ( Thermal). • Mechanical energy. • Light (Radiant) energy. • Electrical energy. • Sound energy. • Chemical energy

Answer:

no don't think so

Explanation:

JESUS CHRIST controls everything 100IQ

No, the moon does not directly control the waves in the ocean. The primary factors that influence the formation of waves in the ocean are wind and the interaction between wind and the water's surface.

The moon, however, does play a significant role in influencing the tides, which are the periodic rise and fall of the ocean's surface.

The gravitational force exerted by the moon, as well as the sun to a lesser extent, creates tidal bulges on the Earth. As the Earth rotates, these tidal bulges move around the planet, resulting in the daily cycle of high tides and low tides.

The gravitational pull of the moon is stronger on the side of the Earth facing the moon, causing a high tide, while on the opposite side, a high tide also occurs due to the centrifugal force resulting from the Earth's rotation. The areas in between experience low tides.

While tides can affect the height and intensity of ocean waves near the coastlines, the actual formation and behavior of waves are primarily driven by wind patterns, water depth, and other factors such as underwater topography.

Waves are generated when the wind transfers its energy to the water's surface, creating oscillations that propagate as waves. These waves can travel vast distances across the ocean, even in the absence of tidal influences.

In conclusion, while the moon's gravitational pull influences the tides, it does not directly control or generate the waves in the ocean.

Waves are primarily driven by wind and other factors, whereas tides are the result of gravitational forces acting on the Earth's oceans.

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Answer: accuracy is how close a value is to their true value, like how close a arrow gets to the bull's eye center.  precision is how repeatable a measurement is, like how close a second arrow is to the first one.

Explanation:

Answer:

The correct answer is - containers 1 and 3.

Explanation:

In any experiment or investigation, there must be all the factors should be constant other than the variable that is changed to see the effect on the result or desired character.

In this experiment to check the effect of the temperature, there must be the only temperature is a variable that should be manipulated rest should remain constant. In container 1st and 3rd, all the variable amount of sugar, the method of mixing all are the same except temperature.

Thus, the correct answer is - 1 and 3rd.

Answer:

because plants or living things cant reflect with a red light

Explanation:

Answer:

Explanation:

Red has the longest wavelength so it has the lowest energy of any color.

Answer:

power

Explanation:

google

This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.

Answer:

100% oon test

Explanation:This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.

Answer:tension, density, temperature and elasticity

Explanation:

Answer:

C

Explanation:

Option  D is the correct answer.

Usually in the research labs there were some rules and we have follow those for our safety measures. Some importance rules while doing experiments were:

Hence, option D is the correct answer.

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Answer:

Earths shadow covering the moon would create a lunar eclipse.

Explanation:

because i just know

A lunar eclipse is occur when Earth’s shadow is covering the moon.

An eclipse happens when one astronomical body like Earth or moon blocks light from or to another.

A lunar eclipse is caused by Earth blocking sunlight from reaching the moon and causing a shadow across the lunar surface.

Sometimes when the Moon orbits Earth, the Moon moves between the Sun and Earth. When this happens, the Moon blocks the light of the Sun from reaching Earth. This causes an eclipse of the Sun, or a solar eclipse.

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Answer:

a lot stresses me out honestly like school work because we are virtual and it's hard cause you basically teaching yourself, secondly me maintaining to be happy i always put everybody's happiness before mine and it's just a lot for me, and lastly the thing that stresses me the most is me overthinking i ALWAYS overthink situations.

Explanation:

:/

Answer:

Speed = 262.49

Direction = 72.26°

Explanation:

[tex] \sqrt{ {250}^{2} + {80}^{2} } [/tex]

=262.49mi/hr

[tex] \tan( \alpha ) = \frac{y}{x} [/tex]

[tex] \tan( \alpha ) = \frac{250}{80} [/tex]

[tex] \alpha = {tan}^{ - 1} ( \frac{250}{80} )[/tex]

=72.26°

Answer:

Explanation:

Because violet waves have the shortest wavelength of the visible light spectrum, they carry the most energy.

Answer:

average speed = total distance/total time

Answer:

C.

Explanation:

""""""" Twice,Half """"""

A big wheel with twice the circumference of a small wheel will rotate with the force and the speed of the small wheel.

C) twice, half

A big wheel with twice the circumference of a small wheel will rotate with twice the force and half the speed of the small wheel.

It is the round circle found on the outside angle of the machine.

It is the adjusted barrel or rod-like portion put on the interior of the machine that's connected to the wheel and makes a difference to advance development.

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Answer:

ball moves forward

direction of moving car is reversed

plane changes the direction

The force on the ball acting to the right may changes its falling to the net. The north-east force acting on the airplane can drag the plane to the eastward direction thus deviates the plane from north. The backward force acting on the car make it hindrance to its forward movement.

Force is an external agent acts on a body, to deform it or change its state from motion or rest. There are different type of forces such as magnetic forces, gravitational force.

Force accelerates a body to move where, as the mass increases, more force have to apply to accelerate the body. If two forces acting in opposite direction, the will cancel each other in magnitude.

The force acting on the ball makes it prevents from falling and the force acting on the plane can deviates its direction from north to eastwards. The backward force acting on the car decelerates the car from forward movement.

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The question does not ask for anything in particular. I will calculate the acceleration and distance.

Answer:

The acceleration of the car is [tex]-7\ m/s^2[/tex]

The distance traveled before stopping is 350 m

Explanation:

Constant Acceleration Motion

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

[tex]v_f=v_o+at\qquad [1][/tex]

The distance traveled by the object is given by:

[tex]\displaystyle x=v_o.t+\frac{a.t^2}{2}\qquad [2][/tex]

The car has an initial speed of v0=70 m/s when the driver sees a cow in the road and steps on the brakes with an (assumed) constant acceleration during t=10 seconds before stopping (vf=0).

With the information provided, we can calculate the value of the acceleration and the distance traveled.

Using the equation [1] we can solve for a:

[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]

Substituting the numerical values:

[tex]\displaystyle a=\frac{0-70}{10}=-7\ m/s^2[/tex]

The acceleration of the car is [tex]-7\ m/s^2[/tex]

The distance is now calculated by using [2]

[tex]\displaystyle x=70\cdot 10+\frac{(-7)\cdot 10^2}{2}[/tex]

[tex]\displaystyle x=700-\frac{700}{2}=350\ m[/tex]

The distance traveled before stopping is 350 m

Answer:

The most significant difference between the static and current electricity is that in static electricity the charges are at rest and they are accumulating on the surface of the insulator. Whereas in current electricity the electrons are moving inside the conductor.

Answer:

Women's national  basketball association

Explanation:

Answer: womens national basketball association

Explanation: my dream

Answer:

15 N to the right.

Explanation:

100 N to the right -->

85 N to the left <--

So therefore in order to find the net force of where the sled is being dragged towards is 100 N - 85 N = 15 N.

So the sled is moving towards the right of 15 N.

Answer:

There are approximately 16 dozes in the final product

Explanation:

The given parameters are;

The viscous lidocaine 2% 30 mL + Maalox 60mL + Diphenhydramine (12.5 mg/5mL elixir)75 mg + Carafate 1gm/10mL 40mL

The total volume becomes;

30 mL + 60 mL + 5 × 75/12.5 mL + 40 mL = 160 mL

1 Teaspoon = 4.928922 mL

Therefore, 2 teaspoon = 2 × 4.928922 mL = 9.857843 mL

Which gives;

The number of doses in 160 mL = 160 mL/(9.857843 mL) = 16.2307312 doses

Which is approximately 16 doses

Therefore, there are approximately 16 dozes in the final product.

Answer:

motion: motion is the phenomenon in which an object changes its position over time. four common types of motion are rotary, oscillating, linear, and reciprocating.

rest is the polar opposite

Explanation:

Answer:

ecosystem; hurricanes and tornadoes; catastrophic events.; Fooding; moving water; soil

Explanation:

After using the word bank to fill in the blanks in the passage, the passage reads;

"The organisms and environments that make up a community called an ecosystem are constantly changing. Sudden and violent events, such as hurricanes and tornadoes that often cause these changes are called catastrophic events. Fooding results when rainfall exceeds the holding capacity of a drainage system. The energy of the  fast-moving water and the layers of sediment carried by it  can uproot or bury plants, reshape the soil and destroy  roads and buildings."

HEY HEY HEY HEY

Explanation:

HEY HEY HEY HEY HEY

The forces, act upon the block which  is at rest on an inclined plane, are:

Two surfaces that come into contact and glide against one another produce frictional force.

When  the block is on an inclined plane, its weight is acting downwards for force of gravity, the surface on the plane acts an upward force named normal force. But to become it rest, a resistive frictional force acts on it. Hence, the  forces, acts upon the block, are:

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7.36 × 10⁻⁷ Newton is the gravitational force between you and the boulder.

Gravity or gravitational force of the earth is defined as the force on which a planet attracts or pulls another planet towards the center. It is represented by symbol g.

Force is defined as the physical quantity and the vector quantity which acts on an object and causes the object to change its size and shape to stop moving and start moving to decelerate and accelerate. Force has both the directions as well as magnitude. The SI unit of force Newton which is also represented as N, named the scientist Sir Issac Newton.

The Newton's Law of universal gravitational is defined as the universal force of attraction acting between the two bodies which is inversely proportional to the square of the distance between them and the directly proportional to the product of their masses.

It is represented as

[tex]F = \frac{G m_1 m_2}{r^2}[/tex]

Where,

F represents the gravitation force between the two bodies

G represents the gravitation constant

m₁ represents the first body mass

m₂ represents the second body mass

r represents the distance between the two bodies.

Here,

G = 6.67 x 10-¹¹ Nm²/kg

m₁ = 63.7 kg

m₂ = 9,750.6 kg

r = 7.5 m

Now by putting in the above formula we get the gravitational force between you and the boulder.

[tex]F = \frac{6.67 \times 10^{-11}\ Nm^2/kg \times 63.7\ kg \times 9,750.6\ kg}{(7.5 m)^2}[/tex]

[tex]F = \frac{4142825.1774 \times 10^{-11}\ Nm^2/kg}{56.25}[/tex]

   = 7.37 × 10⁻⁷ N

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