A rocket has a mass of 15 kg and travels a distance of 250 meters in 13 seconds before it explodes.

What is the velocity of the rocket?
And
What is the momentum of the rocket?

The time of flight is obtained as 25.9 seconds

The time of flight is the time taken to move the object that have been projected along the parabolic path. In this case, we have a cannonball that have been fired  from level ground with a velocity of 240.0 m/s at an angle of 32 degrees.

We know that from the question

T = 2usinθ/g

T = time of flight

u = initial velocity

θ = angle of projection

g = acceleration

T = 2 * 240.0 m/s * sin 32 degrees/9.8 m/s^2

T = 25.9 seconds

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Ods are predicted to disappear from the atmosphere in 10 years. So, the correct option is C.

A layer (or layers) of gases that surround a planet and are held together by the gravitation of the planetary body is known as an atmosphere. Whenever the gravity is strong as well as the atmospheric temperature is low, a planet preserves its atmosphere. The five separate layers of the atmosphere are a result of the temperature variations that occur with height.

The layer of gases that covers Earth and contains the air we breathe is known as an atmosphere. The gravitational pull of the planet's neighbor, Earth, keeps it close to the surface. To gauge air pressure, use a barometer. The three primary components of the atmosphere are nitrogen, oxygen, and argon.

Therefore, the correct option is C.

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Answer:

True

Explanation:

For  the​ body's position at time t  is mathematically given as

s(t)=4.9t^2+5t+16

Generally, the equation for the velocity is mathematically given as

v=ds/dt

v=9.8t+5 as velocity

s=4.9t^2+5t+c

s(0)=16

16=c

s(t)=4.9t^2+5t+16

In conclusion the​ body's position at time t

s(t)=4.9t^2+5t+16

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The body position at the given time t is s = 4.9t² + 5t + 16 if the velocity v= ds/dt and the initial position of a body moving along a coordinate line.

A numerical representation of the distance between two items or locations is called distance. A physical length or an approximation based on other considerations in physics or common usage can be referred to as distance.

We have:

\(\rm v = \frac{ds}{dt}\)

\(\rm v = 9.8t+5\)  is the velocity

\(\rm s = 4.9t^2+5t+c\) is the speed

At t = 0 s(0) = 16

16 = c

\(\rm s = 4.9t^2+5t+16\)

Thus, the body position at the given time t is s = 4.9t² + 5t + 16 if the velocity v= ds/dt and the initial position of a body moving along a coordinate line.

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Answer:

....

Explanation:

Answer:

Explanation: 1: The gas particles move in a straight line before colliding with something, usually the wall of their containers.

2: The is no attraction or repulsion between the gas particles.

Answer:

\(30 \div 33750 = 0.008888\)

It produces oceanic crust,

Answer:

3rd one i think.

Explanation:

Final speed of the tennis ball, moving with a speed of 5. 82 m/s , has a head-on collision with a 0. 090-kg ball is 2.964 m/s.

Momentum of an object is the force of speed of it in motion. Momentum of a moving body is the product of mass times velocity. By the law of conservation of momentum,

\(m_1u_1 + m_2u_2 = (m_1+m_2)v\)

Here, (m) is the mass, (u) is initial velocity before collision, v is final velocity after collision and (subscript 1, and 2) are used for body 1 and 2 respectively. Rewrite the formula for final velocity as,

\(v=\dfrac{m_1u_1 + m_2u_2}{(m_1+m_2)}\)

A 0. 060-kg tennis ball, moving with a speed of 5. 82 m/s, has a head-on collision with a 0. 090-kg ball, initially moving in the same direction at a speed of 3.44 m/s. Thus, the initial velocity of the second ball is,

\(v_{2f}=5.82+3.44+v_{1f}\\v_{2f}=2.38+v_{1f}\)

Let v1f is the final velocity of first ball. Thus, the initial velocity of the first ball is,

\(v_{1f}=\dfrac{(0.060)(5.82) + (0.090)(3.44-2.38)}{(0.060)+(0.090)}\\v_{1f}=2.964\rm\; m/s\)

Thus, final speed of the tennis ball, moving with a speed of 5. 82 m/s , has a head-on collision with a 0. 090-kg ball is 2.964 m/s.

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Answer:

Capricorn what is yours

Answer:

leo

Explanation:

Answer: if the door knob is metal the static electricity will exit your body, but shock you in the process

Explanation:

Answer:

  3/70 kg ≈ 0.04286 kg

  2.8 m/s

Explanation:

In a perfectly elastic collision, the total momentum of the system is constant, and the difference in velocities changes sign.

We assume the other ball is at rest initially, and that the collision is "head-on." That is, final velocities are in the same direction as the initial velocity of the cue ball. We further assume no energy loss, and that the balls do not rotate.

__

Assuming the ball being hit is initially at rest, it contributes no momentum to the system. The total momentum is ...

  (0.1 kg)(2 m/s) = 0.2 kg·m/s

__

If the cue ball has velocity v1 and the hit ball has velocity v2, the initial difference of velocities is ...

  v1 -v2 = 2 m/s -0 m/s = 2 m/s

__

After the collision, we must have ...

  v1 -v2 = -2 m/s . . . . the velocity difference changes sign

  v2 = v1 +2 m/s = 0.8 m/s +2 m/s

  v2 = 2.8 m/s

The velocity of the other ball is 2.8 m/s after the collision.

__

The total momentum after the collision is the same as before, so we must have ...

  m1·v1 +m2·v2 = initial momentum

  (0.1 kg)(0.8 m/s) +(m2)(2.8 m/s) = 0.2 kg·m/s

  m2 = (0.2 kg·m/s -0.08 kg·m/s)/(2.8 m/s) = (0.12/2.8) kg = 3/70 kg

The mass of the other ball is 3/70 ≈ 0.04286 kg.

the resistance of the cable is 582.9 ohms

we are given the length of the cable which is  3 km,  of  1.5 mm in, the diameter  and resistivity of copper which is 1.72 m

The formula  we are referring to for calculating the resistance of the  cable is

R = ρl/A.

As there are 19 strands of copper conductors, so the resistance will be

R = 19( ρl/A)

Here  ρ is the resisitivity =  1.72 , l is the length  = 3(1+0.05)*10³3= 3150 m

A=pie/4(1.5 x 10⁻³)^2 =1.766 x 10⁻⁶ =1.766 x 10^-6

Substituting the values in the formula  we  get

R = 19 ( 1.72*3150 )/1.766 x 10⁻⁶

 = 582.9 ohm

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Mass of a bouquet  = v + 3d + 4t

Given,

Mass of daffodil = d gm

Mass of Tulip = t gm

Mass of vase = v gm

No. of daffodils = 3

No. of tulips = 4

To find,

Weight of flower bouquet =?

According to the question the equation will be

Mass of a bouquet = mass of vase + Mass of 3 daffodils + Mass of 4 tulips

Mass of 3 daffodils = 3d

Mass of 4 tulips = 4t

Now put in the equation,

Mass of a bouquet = v + 3d + 4t

Hence, the weight of flower bouquet is v + 3d + 4t.

I understand the question you are looking for is this:

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. A daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of v grams. Find the total weight of the bouquet.

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Among the given options, cultural differences are most likely to be the centrifugal force within the EU in the future. The EU is a political and economic union of 27 member states, and cultural differences among its member states have always been present.

With the increasing number of immigrants from different parts of the world, the cultural differences among EU member states are becoming more prominent. Each member state has its unique language, history, customs, and traditions, which can create misunderstandings and conflicts among the member states.
The EU aims to promote unity and solidarity among its member states, but cultural differences can lead to a lack of understanding and trust between them. The EU's diverse cultural heritage is both a strength and a challenge for the union. The EU needs to find a way to respect the cultural diversity of its member states while maintaining its unity.
However, the cultural differences among the member states can still cause tensions and conflicts in the future. Therefore, it is crucial for the EU to continue to foster cultural awareness and understanding among its member states to maintain the union's cohesion and stability.

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complete question:

Which of these is most likely to be a centrifugal force within the EU in the future?

a. trade barriers

b. closed borders

c. pollution problems

d. cultural differences

Answer:

distance and length are the same quantity

Answer:

Velocity

Explanation:

I took the test.

Answer:

b. magnitude is the correct option

Answer:

B.) magnitude

Explanation:

The magnitude of an earthquake is a measure of the amount of energy released by the earthquake. The magnitude is typically expressed on the Richter scale, which is a logarithmic scale that quantifies the size of an earthquake based on the amplitude of the seismic waves it generates. The magnitude of an earthquake is a measure of the earthquake's size and power, and is not the same as its intensity, which is a measure of the earthquake's effects on a specific location. A seismogram is a record of the ground motion during an earthquake, as recorded by a seismograph. Force is not directly related to an earthquake.

Answer:

-2.5 \(m/s^2\)

Explanation:

We can use the kinematics equation below to find the boat's acceleration.

\(V_{f} ^{2}= V_{i} ^{2}+2ax\)

Lets solve for \(a\).

Subtract \(V_i^2\) from both sides of the equation.

\(2ax=V_{f} ^{2}- V_{i} ^{2}\)

Divide each term in \(2ax=V_{f} ^{2}- V_{i} ^{2}\) by \(2x\).

\(\frac{2ax}{2x} =\frac{V_{f} ^{2}}{x} +\frac{- V_{i} ^{2}}{2x}\)

Simplify the left side.

Cancel the common factor of 2.

\(\frac{ax}{x} =\frac{V_{f} ^{2}}{x} +\frac{- V_{i} ^{2}}{2x}\)

Cancel the common factor of x.

\(a=\frac{V_{f} ^{2}}{x} +\frac{- V_{i} ^{2}}{2x}\)

Simplify the right side.

Move the negative in front of the fraction.

\(a=\frac{V_{f} ^{2}}{2x} -\frac{ V_{i} ^{2}}{2x}\)

Now we have an equation for \(a\).

We are given

\(V_f=5.5\\V_i=9.5\\x=12\)

Substituting our numbers into the equation gives us

\(a=\frac{5.5^{2}}{2*12} -\frac{ 9.5 ^{2}}{2*12}\)

\(a=\frac{30.25}{2*12} -\frac{90.25}{2*12}\)

\(a=\frac{30.25}{24} -\frac{90.25}{24}\)

\(a=-2.5\)

The spacetime Using Lorentz transformation equation coordinates in the moving frame are (1303.93 m, 3.01 s).

Given information:

An event has spacetime coordinates (x,t)=1,300 m,3.0 s in reference frame S.What are the spacetime that moves in the negative x - direction at 0.03c?We know that the coordinates of the same event as observed from two different inertial frames are related by the Lorentz transformation equations.

Using Lorentz transformation equation:(x', t') = (γ(x − vt), γ(t − vx/c²))where γ = 1/√(1−v²/c²) represents the Lorentz factor, x is the position in the stationary frame, t is time in the stationary frame, x' is the position in the moving frame, t' is time in the moving frame, v is the relative velocity between the two frames and c is the speed of light in vacuum.We are given,x = 1,300 mt = 3.0 s, v = −0.03c (since the motion is in the negative x direction)∴ γ = 1/√(1−v²/c²) = 1/√(1−0.03²) = 1/0.997

The spacetime coordinates in the moving frame, (x', t') = (γ(x − vt), γ(t − vx/c²))= [1/0.997 (1300 - (-0.03c)(3.0))] m, [1/0.997 (3.0 - (-0.03c)(1300)/c²)] s= (1303.93 m, 3.01 s) [correct to 2 decimal places]

Therefore, the spacetime coordinates in the moving frame are (1303.93 m, 3.01 s).

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The are usually aligned with the motion of the Sun.

option C.

Many ancient ruins are aligned with astronomical phenomena and the motion of celestial bodies. This indicates that ancient cultures had a strong interest in and understanding of astronomy and its connection to the natural world.

For example, the ancient Egyptian pyramids at Giza are aligned with the cardinal directions and certain stars, such as the star Sirius. The Mayan city of Chichen Itza in Mexico has a famous pyramid known as El Castillo, which has specific alignments with the sun during the equinoxes and solstices. Stonehenge in England is another famous example, with the stones aligned to the movements of the sun, moon, and stars.

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Answer:

its alot

Explanation:

A common activity like cooking a meal can use many natural Ingredients

Ingredients are substances combined to make a particular mixture such as a meal. most of the ingredients used for the preparation of a meal are sourced naturally.

In cooking different recipes of a meal the use of specific ingredients for each recipe differentiates the recipes.

Therefore we can conclude that cooking a meal requires the use of natural ingredients.

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Answer:

Cutting down trees

Explanation:

The roots of trees often hold settiments in place, thus removing these strong natural barriers makes it easier for erosion to occur.

Answer:

Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.

In this state, Kinetic energy is equal to half of the product mass and velocity. SI unit is joules. So it's if the mass is doubled then the kinetic energy also gets doubled.