A 1750 kg Ford Mustang Convertible and a 2222 kg Dodge Ram 4x4 truck were involved in a head on car crash. The Mustang initially moving at a velocity of 20 m/s rebounds off the truck with a velocity of 12 m/s. After the collision, the Dodge Ram rebounds with a velocity of 5 m/s. What was the velocity of the Dodge Ram before it collided with the Mustang?

Answer:

so if it's 20 you should put 20 times 10 15 * 30 and 1.3 * 5 mg and if you put that milligrams in there it'll solve the destination I saw the white way you going so yeah just be careful at least you want to make the milligrams even a multimacy with the y i and replace it with the 14a

Answer:

108km/h

Explanation:

1km=1000m

3600s=1 hr

M/s= 3600/1000km/hr= 3.6km/hr

30m/s= 30×3.6km/hr = 108km/hr

Answer:

b. passes through the principal focal point.

Explanation:

Light wave can be defined as an electromagnetic wave that do not require a medium of propagation for it to travel through a vacuum of space where no particles exist.

A lens can be defined as a transparent optical instrument that refracts rays of light to produce a real image.

Basically, there are two (2) main types of lens and these includes;

I. Diverging (concave) lens.

II. Converging (convex) lens.

A converging lens refers to a type of lens that typically causes parallel rays of light with respect to its principal axis to come to a focus (converge) and form a real image. This type of lens is usually thin at the lower and upper edges and thick across the middle.

For a converging lens, a ray arriving parallel to the optic axis passes through the principal focal point.

The correct option is b. passes through the principal focal point.

The following information should be considered:

Basically, there are two (2) main types of lens:

A converging lens refers to a type of lens that typically causes parallel rays of light with respect to its principal axis to come to a focus (converge) and form a real image.

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Answer:

That would be true.

-- a bell starts ringing (wave) when you tap it (simple pulse)

-- a pond starts rippling (wave) when a stone drops in (simple shock)

-- a guitar strings starts waving when you pluck it

Answer:

It will move upward and to the right, from the main sequence to the giants.

Explanation:

Plato answer so change it up a bit xx

Answer:

The horizontal speed of the ball is constant where there is little resistance from the air

Explanation:

From the given parameters of the ball, we have;

The horizontal speed of the ball = 4.0 m/s

The height of the cliff from which the ball is launched = 24.6 meters

The direction in which the ball is launched = Horizontally

The components of the forces acting on the ball are;

The vertical force = The Earth's gravitational attraction

The horizontal force = 0 N (There are no horizontal forces acting on the ball)

According to Newton's first law of motion, the ball will continue in its uniform motion or in its rest state unless acted upon by a force

Therefore, given that there are no horizontal forces component acting on the ball, (little air resistance) the ball will continue with the initial horizontal velocity, such that the horizontal velocity of the ball remains constant.

Answer:

control of friction can be done with the help of lubricants

Explanation:

Answer:

carbon dioxide i think please be right

Answer:

1. Acceleration = 6.25 m/s²

2. Force = 20 Newton.

3. Mass = 11.33 kg

Explanation:

Given the following data;

1. Force = 25N

Mass = 4kg

To find the acceleration;

Acceleration = force/mass

Acceleration = 25/4

Acceleration = 6.25 m/s²

2. Mass = 10kg

Acceleration = 2 m/s²

To find the force required;

Force = mass * acceleration

Force = 10 * 2

Force = 20 Newton.

3. Force = 17N

Acceleration = 1.5 m/s²

To find the mass;

Mass = force/acceleration

Mass = 17/1.5

Mass = 11.33 kg

Answer:

As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.

Explanation:

Answer:

 w = 4π   rad / s

Explanation:

When the dancer is turning, the body is isolated so the angular momentum is conserved.

initial

         L₀ = I₀ w₀

final

         L_f = I w

in this case it indicates that the initial moment is Io = 28.14 kg m² and the final moment is half

         I = I₀ / 2

frequency and angular velocity are related

         w = 2π f

          w = 2π 1

          wo = 2π   rad / s

how angular momentum is conserved

          L₀ = L_f

          I₀ w₀ = I w

          w = [tex]\frac{I_o}{I}[/tex]  w₀

let's calculate

          w = 2 2π

          w = 4π   rad / s

Answer:

i think so

Explanation:

Answer:

the answer is 'b'

According to me

Answer:

B

Explanation:

It has more negative signs than positive signs

Answer:

As spring falls in a vertical plane, the change in gravitational potential energy is transformed to elastic potential energy.

Explanation:

To calculate the spring constant, Hooke's law was used, as well as potential energy to calculate the gravitational and elastic potential energy.

Answer:Speed is the time rate at which an object is moving along a path

Velocity is the rate and direction of an object's movement.

Explanation:

Hope it helps

Answer:

Neutrons

Explanation:

Neutrons are not found in the nucleus of an atom

Answer:

Electrons

Explanation:

=> electrons are not found in nucleus of the

atom

=>. they are outside the nucleus

=> revolving around the nucleus in fixed orbit

hope it helps

Answer:

Part A

The distance from the start point the goose travels is approximately 84.96 miles

Part B

The direction the goose travel is approximately 71° Northeast

Explanation:

Part A

The distances the goose flies is given as follows;

The distance directly 45 degrees southeast the goose travels, AB = 55 miles

The distance Northeast the goose travels, BC = 75 miles

The angle Northeast the goose travels = 35°

From the attached drawing of the path the goose travels, we have, by cosine rule, the following relation;

a² = b² + c² - 2·b·c·cos(A)

Therefore, we have;

The length of side [tex]\overline{AC}[/tex]² = 55² + 75² - 2 × 55 × 75 × cos(80°) = 7217.40253425

[tex]\overline{AC}[/tex] = √(7217.40253425) ≈ 84.9552972701

The distance from the start point the goose travels ≈ 84.96 miles

Part B

By sine rule, we have;

75/(sin(A)) = [tex]\overline{AC}[/tex]/(sin(80°))

sin(A) = (75/[tex]\overline{AC}[/tex]) × (sin(80°)

∴ sin(A) =  (75/84.9552972701) × (sin(80°) = 0.8694052016

∠A = arcsin(0.8694052016) = 60.3895991264° ≈ 60.4°

The direction the goose travel = 180 - 64 - 45 = 71°

∴ The direction the goose travel =≈ 71° Northeast

Answer:

The positive ball would go first to the negatively charged plate.

Explanation:

After which, it would hold a more negative charge. Due to the negative charge, it would travel towards the positive plate. Thereby, it would transfer negative electrons to the positive plate once more. In doing so, it would transfer positive protons to the negative plate. After which, it would hold more  negative electrons and be drawn towards the positive plate once more. The Process would continue until the once-positive and once-negative became neutral ( and were discharged.) Additionally, the ball hanging on the insulator thread would also be neutral and discharged.

Answer:

When covalent compounds dissolve in water, they break apart into molecules, but not individual atoms. Water is a polar solvent, but covalent compounds are usually nonpolar. This means covalent compounds typically don't dissolve in water, instead, it makes a separate layer on the water's surface.

Explanation:

I don't understand the second part but hope this helps.

Answer:troposphere, stratosphere, mesosphere and thermosphere and exosphere

Explanation:

Answers;

Explanation:

Wheel and axle gizmos answer key

Answer:

Convex lenses concentrates the light energy to one spot on the paper so that the heat energy accumulates on that one small spot of paper. ... As the heat increases, combustion will occur when the spot becomes too hot and the paper will burn.

Explanation:

Hope it helps!

If you dont mind can you please mark me as brainlest?

Answer:

a doubling of the height will result in a doubling of the gravitational potential energy.

Explanation:

Answer:

A team led by Nick Vamivakas has now made the levitated optomechanical analogue to the optical laser by expanding on the optical tweezer,By measuring the scattered light, we are then able to alter the way the beads oscillate and increase the output of energy as measured in phonons

Explanation:

Answer:

A.) Oxidation

Explanation:

:p

Hydrogen reacts with oxygen, hydrogen loses electrons. The term

applies to what happens to hydrogen in this reaction is

A. Oxidation

Oxidation is a process where a substance: Loses one or more electrons or gains an oxygen atom or we can say that oxidation is a process which involves the addition of oxygen or any electronegative element or the removal of hydrogen or any electropositive element.

Reduction is the gain of electrons or reduction is a process which involves the addition of hydrogen or any electropositive element or the removal of oxygen or any electronegative element.

A synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. Synthesis reactions release energy in the form of heat and light, so they are exothermic.  

correct option is A. Oxidation

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Hello,

According to the 2nd Newton's law,

✔ We have : F = m x a ⇔ a = F/m; with F in N, m in kg, a in m/s²

Therefore Xander's acceleration is 0.5 m/s².  

The total mass of Xander and his scooter is 50 kg and the net force acted due to Xander and his scooter is 25 N then the acceleration will be 0.5 m/s².

Acceleration is the rate at which the speed and orientation of a moving object change over time. When a spot or object moves faster or slower along a straight line, it is said to be accelerated. Even though the speed is constant, motion on a circle accelerates so because the direction is always shifting. Both by and to acceleration for all other types of motion.

It is a vector quantity because it has both magnitude and direction.

As per the given information provided by the question,

Mass, m = 50 kg

Force, F = 25 N

F = ma

25 N = 50 × a

a = 25/50

a = 0.5 m/s².

Therefore, the acceleration of Xander's acceleration will be 0.5 m/s²

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Answer:

A) 3.39 seconds

Explanation:

We can find the time it takes the arrow to hit the ground by using a constant acceleration equation.

Let's make the positive direction upwards and the negative direction downwards. Let's list out the relevant variables:

Find a constant acceleration equation that contains these four variables.

Substitute known values into the formula and solve for t.

Use the quadratic formula to continue solving for t.

From this, when we add the discriminant we get -12.04664168. When we subtract the discriminant we get 3.38819129.  

Since time cannot be negative, the time it takes for the arrow to hit the ground must be 3.39 seconds.

Answer:V^2=U^2+2gSIN45S

60^2=2asin45x200

3600=400sin45(a)

3600=282•84a

a=3600/282•84

a=12m/s^2

S=ut+0•5gt^2

200=0•5(12)t^2

200=6t^2

t^2=200/6

t^2=33.33

t=5.77s

Explanation:

Answer:

The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.

Answer:

To measure the magnitude of an earthquake, the American scientist Charles Richter developed a scale in 1935. Known as the Richter scale, it assigns a number based on the height of the waves on a seismogram (the visual output of a seismograph). Seismographs measure ground motion, including the energy released by an earthquake.