PLEASE HELP I WILL MARK YOU
Scenario: On October 15, 1997, a car called
Thrust SSC set a new land-speed record. It
traveled 763 mph in 1 mile and became the first
car to officially break the sound barrier. The
Thrust SSC propels itself forward with two jet
engines made by Rolls-Royce, the same
engines found in the British version of the F-4
Phantom I fighter jet. The propulsion system
on the Thrust SSC is unique in that it does not
rely on the friction between the tires and the
ground for its forward motion. Instead, the jet
engines provide the force.

Question : Is it possible to make the Thrust SSC achieve an even higher maximum speed?

Directions: Use the information above and your
knowledge of Newton's second law of motion
to write a scientific explanation with at least
two modifications that you could make to the
car that would increase its acceleration. Be
sure to state a claim, provide mathematical
evidence (i.e. an equation or scientific
principle), and state your reasoning.

Thrust SC Specifications
Mass
10,700 kg
Maximum Speed
763 mph
Acceleration
20.8 m/s2
Fuel Burn Rate
4.8 gallons/s
Thrust Force
223,000 N

Answers

Answer 1

We want to see if the Trust SSC can archive a higher maximum speed.

Remember the second Newton's law:

Force = mass*acceleration.

And acceleration is the rate of change of the velocity.

Assuming the mass of the Trust SSC does not change, increasing the force would mean that we increase the acceleration, and thus, larger velocities can be reached.

Now there are some problems.

How we do increase the force?.

It is hard to ve precise, mostly because we don't really know how the system works, we just got some given random data that we can't use without context.

Another thing we need to remember, this velocity is measured in only one mile. So because we have a fixed distance to measure it, we only can get larger velocities by increasing the acceleration.

And to increase the acceleration we can increase the force, as discussed, or, decrease the mass.

How to decrease the mass? Using lighter materials.

Now let's see an example on how decreasing the mass would affect the acceleration.

Mass = 10,700kgAcceleration = 20.8 m/s^2

Then an aproximate force is given by:

F = 10,700kg*20.8 m/s^2 = 222,560 N

Now, if we decrease the mass a little bit, for example to 10,000kg, and we do not change the force, the new acceleration will be given by:

10,000kg*a = 222,560 N

a = (222,560 N)/(10,000kg) = 22.3 m/s^2

So decreasing the mass a little, increases the acceleration, which would make a larger maximum velocity.

Concluding, there are two ways of increasing the maximum velocity:

Increasing the force.

Decreasing the mass of the car.

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Related Questions

Two rocks are at the top of a building. Rock 1 is dropped from rest while Rock 2 is thrown horizontally at a velocity of 5 m/s.What is the horizontal acceleration of Rock 2

Answers

The horizontal acceleration of the rock 2 is zero.

The given parameters;

initial velocity of Rock 1 = 0

initial horizontal velocity of Rock 2 = 5 m/s

An object falling under the influence of gravity experiences acceleration due to gravity which is always directed vertically downwards.

An object moving horizontally is not affected by gravity and thus will experience no acceleration in the horizontal direction.

Thus, we can conclude that the horizontal acceleration of the rock 2 is zero.

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Can someone please give me the answers to this? ... please ...

Answers

Answer:

tell me if im wrong

Explanation:

ok and thaks sa points

According to this graph, the acceleration
is approximately:
Velocity (m/s)
MN
0
1 2 3 4
Time t(s)
5
A. 4 m/s2
B. 2 m/s2
C. 1 m/s2
D. 3 m/s2

Answers

Answer:

1 m/s^2

Explanation:

a=(v-u)/t

where,

a=acceleration

v=final velocity

u=initial velocity

(4.5-0)/4.5

1 m/s^2

the speed of light is the ______ of its frequency and wavelength. in a vacuum, this value is a constant, ______.

Answers

Answer:

multiplication; 2.99 x 10^8

Explanation:

V = (ε x u)^-1/2 = 1/(8.85 x 10^-15 x 4π x 10^7)^1/2 = 2.99 x 10^8

A train travels 120 miles in 2.5 hours. What is its average speed?

Answers

Answer: 48 mph

Explanation: 48*2.5=120

NEED HELP!!! IF YOU ANSWER ALL QUESTIONS I WILL GIVE YOU BRAINEST!!!!! 15 POINTS!!!!

1. Imagine that you design running shoes for a living. Which biometric would be most useful?
A.
the average weight of a runner
B.
the number of runners in a popular urban area
C.
the points of impact when the foot hits the ground
D.
the distance that beginning runners attempt to finish

2. Mike is studying the differences between the body mechanics of swimmers in pools versus open water. What is his focus on?
A.
statics

B.
dualism

C.
statistics

D.
dynamics

3. What is the potential hazard of failing to use equipment correctly at the gym?
A.
It is poor gym etiquette.
B.
It can cause injuries or pulled muscles.
C.
Poor exercise habits can actually cause stress.
D.
The exercise will not release endorphins if you do it wrong.

4. Ira is concerned about his posture. He tests it by seeing how long he can hold good posture and finds that he feels the most discomfort in his back. What does that suggest that he needs to do?
A.
Keep a neutral spine.
B.
Place his hands on his hips.
C.
Arc his back when he walks.
D.
Tuck his chin close to his chest.

PLEASE NO LINKS

Answers

Answer: Like  marathon runner is about 140 pounds

Explanation:

knjdjdedjddjdddejjjjjjjj

Answers

U hi why exactly are you trying to do

Below is a diagram of a weight on a spring. When the weight is pulled down and then released, the spring compresses and expands. Each position indicates a different point in time.

Which of the following statements is true?
a
In all four positions, mechanical energy is 0 J.
b
The elastic potential energy of the spring at Position 2 is converted to kinetic energy.
c
The chemical potential energy of the spring is greatest at Position 4.
d
In all four positions, the gravitational potential energy of the spring is the same.

Answers

Answer:

B.

Explanation:

The elastic potential energy of the spriy at position 2 is converted to kinetic energy.

The elastic potential energy of the spring at Position 2 is converted to kinetic energy. Option (B) is correct.

What is potential energy?

The energy held within an object is known as potential energy. There are several different types of potential energy, including gravitational potential energy, elastic potential energy, and electric potential energy.

Here, the energy that an object possesses as a result of its position in relation to other objects is referred to as its gravitational potential energy.

Elastic potential energy is the energy that an object possesses as a result of the stresses that exist inside its body.

At  Position 2, the elastic potential energy of the spring is converted to kinetic energy.

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Is that statement true or false?


One adaptation of bioluminescent fish is that they may have lures that can produce light to help them hide from predators

A. true


B. false

Please Help!!!

Answers

False, they don’t use the lures to produce light. Instead they use a strong flash of bioluminescence to scare off predators

When a person speaks, a sound intensity is generated that is 600 times greater than when the person whispers. What is the difference in decibels between the sound level when the person speaks compared to when she whispers

Answers

Answer:

Originally :  Level = log I / I0

Currently: Level = 10 log I / I0

Level = 10 log 600 = 10 * 2.78 = 27.8

Note the term 1 bel = 10 decibels

Q3- It takes you 35 min to walk to the shop. If the distances are A = 0.5 km, 8 - 1.4 km, and C = 0.8 km what was your average speed in km/h?
O 0.025 km/h
0.090 km/h
O 1.5 km/h
4.8 km/h

Q2- supposed you walk from your house to school then from school to the store, then from the store to your friend's house. If the distance is A=375, B=750, and C = 435 what was the magnitude of your displacement?
1125m
375m
1560m
2745m

Q1- Suppose you walk from your house to school then from school to the store and then from the store to your friend's house. If the distance is A=375, B=750 and C= 435, what distance did you travel?
1560
2745
1125
375

Answers

Answer: 1. .090km/h

2. I dont know

3. 1560

Explanation:

1. add all the numbers up and divide by 3 bc thats how many numbers there are.

2. I dont know

3. add all distances up

ultraviolet light destroys which vitamin essential for cell division?

Answers

Answer:

Both Vitamin D and folate level are affected by UV radiation from sunlight.

Explanation:

You can tell if something’s a living thing or not by checking if it has?

Answers

Explanation:

To determine whether something is living or nonliving, a living thing must meet seven specific characteristics: feeding, movement, respiration, excretion, growth, sensitivity, and reproduction. A living organism needs to be able to feed to make energy and grow.

Please allow me to know if I helped with a thank you, rating or brainly.

Miss Hawaii

physics




what are the two correct choices??



choice1
- insulating
- neutral
- large
- conductive


choice2
- potential energy
- potential difference
- charge
- electric potential


Answers

Answer:

3 and 2

May be

ok may be subscribeIsenberg Isenberg Ignatius

When does it have kinetic energy

Answers

The answer is motion

how much is a city of a body when it covers 600m in 5 min?

it is an answer : 2 m/s

i don't know sloution​

Answers

Answer:

2m/s

Explanation:

5min × 60sec

=300

now,

600÷300

=2

Friction can be reduced by using ___________.

Answers

Answer:

Make the surfaces little more smoother. ...

Lubrication is another way to make a surface smoother. ...

Make the object more streamlined. ...

Reduce the Normal force acting between the surfaces in contact. ...

Reduce the contact between the surfaces, so that less number of bonds will be formed.

is the right answer c?

Answers

Answer:

Yea I believe so

Explanation:

A golf ball resting on a tee is hit, and its velocity changes from 0m/s to 50 m/s traveling down the fairway in 5 seconds. What was the golf ball's acceleration?

Answers

Answer:

Explanation:

55m/s

what the speed and kinetic energy

Answers

Answer:

softball=29.680365296803654

=29.68/s

horse=0.8km/m

satellite=184.028km/m

Explanation:

distance/time

Mixtures can be either heterogeneous or homogeneous. Which of the following is
characeristic of a homogeneous mixture?

A mixture in which two or more substances are still distinguished (can tell there is more than one
substance).

A mixture in which large particles are suspended.

A mixture in which large particles are not suspended and eventually settle.

A mixture in which two or more substances are evenly distributed (spread out).

Answers

Answer:

Option D

Explanation:

There are two types of mixtures

HomogeneousHeterogeneous

The mixture in which one type of substances are present is called homogeneous mixture.

The mixture on which different types of substances are present is called heterogeneous mixture.

4. As Juan is going to take a shower, the soap falls out of the soap dish on to the

floor and Juan steps on it with a force of 493 N. If Juan slides forward and the

frictional force between the soap and the shower floor is 40 N, what is the

coefficient of friction between the soap and the floor? *

Your answer

Answers

The coefficient of friction between the soap and the floor is 0.081

If Juan steps on the soap with a force of 493 N, this is her weight, W. This weight also equals the normal reaction on the floor, N.

We know that frictional force F = μN where μ = coefficient of friction between soap and floor.

So, μ = F/N

Since F = 40 N and N = W = 493 N,

μ = F/N

μ = 40 N/493 N

μ = 0.081

So, the coefficient of friction between the soap and the floor is 0.081

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A ship travels 3.20 hours with a velocity of 21.1 mph at theta= 123º, including the effects of the

current. The pilot then turns to a heading of 190.0° with a speed of 18.2 mph, including the effects of

the current. If the pilot stays on this heading for 1.10 hours, what is the ship's final displacement from

its original starting point?

Answers

The vector addition and kinematics of uniform motion allows to find the result for where the starting point is:

The ship left a point at a distance of 77,565 miles in a direction of 136.7º from the x-axis.

Given parameters

First speed v₁ = 21.3 pH Angle  θ₁ = 123º Time t₁ = 3.20 h Second speed v₂ = 18.2 mph Angle θ₂ = 190.0º Time t₂ = 1.10 h

To find

Distance start point.

Velocity is a vector magnitude, therefore it has direction and module, to make the addition of these magnitudes vector algebra must be used.

There are two methods for adding vectors:

Graphic. In this case, a vector is placed at the tip of the other and the resulting vector goes from the origin of the first to the tip of the last. Analytical. In this case, the vector is decomposed into a coordinate system, the resultants are found and the vector is composed.

In the attached we can see a diagram of the displacement of this ship. We use a Cartesian reference system and using trigonometric to decompose the velocities.

First speed

            cos 123 = [tex]\frac{v_1_x}{v_1}[/tex]  

            sin 123 = [tex]\frac{v_1_y}{v_1}[/tex]  

            v₁ₓ = v₁ cos 123

            [tex]v_{1y}[/tex] = v₁ sin 123

            v₁ₓ = 21.1 cos 123 = -11.49 mph

            [tex]v_{1y}[/tex] = 21.1 sin123 = 17.70 mph

Second speed

            v₂ₓ = v₂ cos 190

            [tex]v_{ 2y}[/tex] = v₂ sin190

            v₂ₓ = 18.2 cos 190 = -17.92 mph

            [tex]v_{2y}[/tex] = 18.2 sin190 = -3.16 mph

Now we can use kinematics of uniform motion.

            v = [tex]\frac{d}{t}[/tex]  

             d = v t

Where v is the velocity, d the distance and t the time

Let's find every distance traveled.

For first speed

x-axis

         x₁ = v₁ₓ t₁

         x₁ = -11.49  3.20

         x₁ = - 36,768 miles

y-axis  

         y₁ = [tex]v_{1y} \ t_1[/tex]

        y₁ = 17.70 3.20

        y₁ = 56.64 miles

Travel for 2nd speed

       x₂ = v₂ₓ t₂

       x₂ = -17.92 1.10

       x₂ = -19,712 miles

       y₂ = -3.16 1.10

       y₂ = - 3,476 miles

Let's find the distance traveled on each axis

x-axis

    [tex]x_{total}[/tex] = x₁ + x₂

    [tex]x_{total}[/tex] = -36,768 - 19,712

     [tex]x_{total}[/tex] = -56.48 miles

y-axis

     [tex]y_{total}[/tex] = y₁ + y₂

     [tex]y_{total}[/tex] = 56.64 - 3.476

     [tex]y_{total}[/tex] = 53,164 miles

Let's construct the total displacement vector, for the module let's use the Pythagorean theorem

       [tex]d_{total} = \sqrt{x^2 +y^2} \\d_{total} = \sqrt{56.48^2 +53.164^2}[/tex]

       [tex]d_{total}[/tex] = 77,565 miles

Let's used trigonometry for the direction

      [tex]tan \theta ' = \frac{y_{total} }{ x_{total} } \\\theta ' = tan^{-1} \frac{y_{total} }{ x_{total} }[/tex]  

      θ’= 43.3º

This angle is in the second quadrant to indicate the angle with respect to the positive side of the x-axis in a counterclockwise direction.

   θ = 180 - θ'

    θ = 180 - 43.3

   θ = 136.7º

In conclusion using the addition vectors and kinematics of uniform motion we can find the result for where the starting point is:

The ship left a point at a distance of 77,565 miles in a direction of 136.7º from the x-axis.

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what the kinetic energy quantities in calculation pls help me​

Answers

Answer:

KE = 0.5 * m * v², where: m - mass, v - velocity.

Explanation:

In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s 2.

Within a period of the periodic table, how do the properties of the elements vary?

Answers

Answer:

Elements in the same period have the same number of electron shells; moving across a period (so progressing from group to group), elements gain electrons and protons and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases.

Explanation:

The Periodic Table can predict the properties of new elements, because it organizes the elements according to their atomic numbers. ... They hope that the two nuclei at the centre of these atoms will fuse and form a heavier nucleus. When these heavy elements form, they are usually highly unstable.

As a falling apple, approaches the ground, its potential energy

Answers

Answer:

Decreases.

Explanation:

When an object with potential energy falls to the ground, its potential energy decreases and kinetic energy increases.

please help me answer this

Answers

Answer:

Earth's atmosphere is made up of a combination of gases. The major components of nitrogen, oxygen, and argon remain constant over time and space, while trace components like CO 2 and water vapor vary considerably over both space and time.

Explanation:

it is C

Answer:

c

Explanation:   O n O

The photo shows a sea urchin embryo. A sea urchin is a multicellular organism. جام Which two processes occur as the sea urchin embryo grows? A. The embryo's cells grow larger in size. B. The amount of DNA in the embryo's body cells decreases. C. The total number of cells in the embryo's body decreases. D. The embryo's cells take in water and nutrients. SUBMIT

Answers

Answer:

d and a

Explanation:

The embryo's cells grow larger in size, and the embryo's cells take in water and nutrients. The correct options are A and D.

The two processes that occur when the sea urchin embryo matures, according to the information presented, are:

The embryo's cells grow in size: During the embryo's growth and development, individual cells divide and grow in size, contributing to the organism's total growth.

The embryo's cells actively take in water and nutrients from the surrounding environment: As the embryo grows, its cells actively take in water and nutrients from the surrounding environment to support metabolic processes and offer the essential resources for growth and development.

Thus, choices A and D represent the proper processes that occur while the sea urchin embryo develops.

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Which metals have similar chemical properties? Check all that apply.

Answers

Answer:

yes

Explanation:

barium, beryllium, radium, and calcium.

Suppose two ships start from point B and travel west. One ship travels at an average velocity of 35 km/h for 2.2 h. Another ship travels at an average velocity of 26 km/h for
2.5 h. What is the final position of each ship?

Answers

Answer:

Another ship travels at an average velocity of 26 km/h for

Explanation:

Ship one will cover a distance of 77 km after 2.2 hours and ship two will cover a distance of 65 km after 2.5 hours.

What are average speed and velocity?

The average speed of an object is the average distance it covers in a given length of time. The scalar number reflects the average speed. Direction can be replaced with magnitude.

[tex]Average\ speed=Total\ distance/Total\ time[/tex]

Average velocity is a vector quantity. The change in position or displacement divided by the periods of time during which the change occurs is known as average velocity. Depending on how the displacement has been adjusted, the average velocity could be either positive or negative. Meters per second (m/s), or average velocity, is the SI measure for speed.

[tex]Average\ Velocity=Total\ displacement/Total\ time[/tex]

According to the question,

Ship one has an average velocity of 35 km/h for 2.2 hours.

So, total distance covered by ship one = 35 × 2.2 = 77 km.

Ship one has an average velocity of 26 km/h for 2.5 hours.

So, total distance covered by ship one = 26 × 2.5 = 65 km

Hence, the distance covered by ship one is 77 km and ship two will cover 65 km.

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