The maximum speed around a level curve is 30. 0 km/h. What is the maximum speed around a curve with twice the radius? (assume all other factors remain unchanged. ).

Answers

Answer 1

The maximum speed around a level curve is 30. 0 km/h. What is the maximum speed around a curve with twice the radius is 42.4 km/h.

Meaning of the maximum speed curve:

You might travel at a maximum speed of around 1.4 times as fast on a curve with a radius of 60 meters (twice as much), according to the equation, which also states that your maximum speed is proportional to the square root of the curve's radius.

According to that,

30 km/hr is the maximum speed.

New radius equals 2 r

In all scenarios, the centripetal force will be the same.

Calculating the new top speed around a curve is necessary.

Using the centripetal force formula:

[tex]\frac{mv^{2} }{r} = \frac{mv^{2}}{r}[/tex]

Fill out the formula with the value

[tex]\frac{v^{2} }{2r} = \frac{30^{2} }{2r}[/tex]

[tex]v= 30\sqrt{2} \ Km/h[/tex]

[tex]v = 42.4 Km/h[/tex]

The maximum speed around a curve is therefore 42.4 km/h.

For such more question on speed:

brainly.com/question/14357958

#SPJ4


Related Questions

PLEASE HELP ME I AM TIMED!

Answers

Answer:

Well my good friend the other person did not give U a good answer, it is actually the third one

Explanation: well it is the most logical of all the answers if you think about it and a lot of the creatures we have in the water today are thought of to have once lived on land based on the fossils we still find to this very day my friend

Hurryyyyy pleaseeeee!!!!!
An ideal gas triples in volume in an adiabatic process. the initial pressure is 1.4 x 10^5 Pa. what is the final pressure? let y = 1.67.
5.8 x 10^4 Pa
2.2 x 10^4 Pa
1.4 x 10^4 Pa
1.0 x 10^5 Pa​

Answers

Answer: 2.2x10^4

Explanation: in a adiabatic process pV^y = constant.

So V2=3V1 and p2 = p1 / 3^1.67 = 2.2x10^4 Pa

When a magnetic field is first turned on, the flux through a 20-turn loop varies with time according to Φm=5.0t2−2.0t, where Φm is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward. (a) What is the emf induced in the loop as a function of time? What is the direction of the induced current at (b) t = 0, (c) 0.10, (d) 1.0, and (e) 2.0 s?

Answers

Answer:

A) ( - 200t + 40 ) volts

B)  b) anticlockwise ,  c) anticlockwise , d) clockwise ,  e) clockwise

Explanation:

Given data:

magnetic flux (Φm) = 5.0t^2 − 2.0t

number of turns = 20

a) determine induced emf

E = - N [tex]\frac{d\beta }{dt}[/tex]

  =  - N ( 10t - 2 ) = - 20 ( 10t - 2 )

  =  - 200t + 40  volts

b) Determine direction of induced current

i) at t = 0

 E = - 0 + 40  ( anticlockwise direction )

ii) at t = 0.10

E = -20 + 40 =  20 ( anticlockwise direction )

iii) at t = 1

E = - 200 + 40 = - 160 ( clockwise direction)

iv) at t = 2

E = -400 + 40 =  - 360 ( clockwise direction )

p me have no brain please help I just wanna get through the year
According to the law of conservation of mass, what is the mass of sodium oxide (Na20) formed in this reaction? 4Na 91.96 g 02 32.00 g 2Na 0 ?

A. 247.92 grams

B. 123.96 grams

C. 61.68 grams

D. 495.84 grams​

Answers

Answer:

B. 123.96 grams

Explanation:

Two resistors, 2.50 Ω and 4.95 Ω, are wired in series to a 12.00 V battery. What is the equivalent resistance of the circuit?

Answers

Answer:

7.45 Ω

Explanation:

From the question given above, the following data were obtained:

Resistor 1 (R₁) = 2.50 Ω

Resistor 2 (R₂) = 4.95 Ω

Voltage (V) = 12 V

Equivalent Resistance (Rₑq) =?

Since the resistors are in series arrangement, the equivalent resistance can be obtained as follow:

Rₑq = R₁ + R₂

Rₑq = 2.5 + 4.95

Rₑq = 7.45 Ω

Therefore, the equivalent resistance is 7.45 Ω

Match the choices below to the correct description. Drag the terms on the left to the appropriate blanks on the right. ResetHelp blank − this body wave is a compressional wave. − this body wave is a compressional wave. blank − this body wave is a shear wave. − this body wave is a shear wave. blank − this surface wave moves from side to side. − this surface wave moves from side to side. blank − this surface wave moves up and down. − this surface wave moves up and down.

Answers

Answer: hello the terms are missing but I have provided the answer ( the terms and matched them properly

answer :

P WAVESS WAVESL WAVESR WAVES

Explanation:

This body wave is a compressional wave  : P WAVES

This body wave is a shear wave :  S  WAVES

This surface wave moves from side to side : L WAVES

This surface wave moves up and down. : R WAVES

A body wave is a type of wave that passes through the interior of the earth and they are classified as ; P and S waves while surface waves are seismic waves that travel near the earth's surface

Friction and air resistance are forces that always:


1.) Balance out, having no effect on the net force.

2.) Act in the opposite direction to an object's motion, tending to slow it down.

3.) Pull objects down towards the center of the Earth.

4.) Cause objects to speed up.

Answers

2 act in the opposite direction. To an objects motion, tending to slow it down

PLEASE HELP!! I PROMISE I'LL GIVE BRAINLIEST!!
What would your life look like if you had to use only analog signals?

Answers

like a black cloud

Explanation:

Define: Signals

Before going too much further, we should talk a bit about what a signal actually is, electronic signals specifically (as opposed to traffic signals, albums by the ultimate power-trio, or a general means for communication). When one speaks of analog one often means an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also convey analog signals.

An analog signal uses some property of the medium to convey the signal's information. Any information may be conveyed by an analog signal, often such a signal is a measured change in physical phenomena, such as sound, light, temperature, position, or pressure.

For example, in sound recording, changes in air pressure (that is to say, sound) strike the diaphragm of a microphone which causes related changes in a voltage or the current in an electric circuit. The voltage or the current is said to be an "analog" of the sound.

Factors that affect the rate at which candle wax melts

Answers

Answer:

There are several factors such as candle size, wax type, additives etc. that affect the rate of melting of candle

Explanation:

Following factors affect the rate at which the candle wax melts -

a) Candle size

b) Temperature of the surrounding environment

c) Type of wax used

d) Additives in the candle

e) Chemical structure of the wax

I have always wondered if the saying it was hot enough to fry an egg on the sidewalk could 20 points be true. Please describe how you would determine if this could really happen. State any assumptions you would make. State any additional information that you would need and what you would do with the additional information

Answers

Answer:

This is one of the hottest summers America has ever seen and Jeremiah Warren is taking advantage of the heat wave and doing a little cooking…in his car!

It was about 98 or 99 degrees in Texas, so Jeremiah thought he’d head outside to see if it was hot enough to actually cook food.  He buttered up a frying pan on his dashboard and filled it with an egg, cookie dough, a hot dog and bacon (mmm…bacon!).  He set up another frying pan on the sidewalk and a few hours later he came back for a mid-day snack.

Explanation:

Light waves are


A.rotating waves.
B.longitudinal waves.
C.circular waves.
D.transverse waves

Answers

SHOCKING

Explanation:

Answer:

D i promises.

Explanation:

light waves can go 2 direction

The image shows the magnetic field lines around a magnet.
Which statements are true for this magnet?

- the right pole is the south pole

- the left pole is the south pole

- the left pole is the north pole

- the right pole is the north pole

Choose all that apply

Answers

Answer:

The right pole is the south pole

The left pole is the north pole

Explanation:

Reason : -

Magnetic field lines emerge from North pole to South pole in a bar magnet.

when a metal reacts with a non-metal it forms what???​

Answers

Answer:

When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions. The resulting compound is called an ionic compound.

:

In the the table there is 20 kj of coal, how much energy in joules is 1g of coal?

Answers

Answer:

what do u meN by this i really don't know

Two moving objects have the same momentum. Object 1 has three times the mass of Object 2; therefore, Object 1 has:

the same the velocity of Object 2
three times the velocity of Object 2
nine times the velocity of Object 2
one-third the velocity of Object 2
one-ninth the velocity of Object 2

Answers

ANSWER

0ne third the velocity of object 2

Explanation:

P1=P2

m1v1=m2v2

v1=1/3.v2 [ since, m1=3.m2 ]

m2=m1/ 3

Answer:

one-third the velocity of Object 2

Explanation:

A 2018 Tesla Model S has a horsepower of 518. How many watts of power does this car model have?

Answers

Answer:

It depends on the model but these are the watts of each motor

Explanation:

Un motor: 258 HP (262 CV) Dual motor: 154 kW (209 CV) y 197 kW (268 CV). Performance: 154 kW (209 CV) y 225 kW (306 CV).

A 2.0 kg sphere with a velocity of 6.0 m/s collides head-on and elastically with a stationary 10 kg sphere

Answers

Question: A 2.0 kg sphere with a velocity of 6.0 m/s collides head-on and elastically with a stationary 10 kg sphere, What is thier velocities after collision.

Answer:

v = 6 m/s, v' = 0 m/s

Explanation:

From the question,

For Elastic collision,

mu+m'u' = mv+m'v'......................... Equation 1

Where m = mass of the first sphere, m' = mass of the second sphere, u = initial velocity of the first sphere, u' = initial velocity of the second sphere, v = final veolocity of the first sphere, v' = final velocity of the second sphere.

Also,

The relative velocity before collision = relative velocity after collision

u-u' = v-v'............................ Equation 2

Given:  m = 2 kg, m' = 10 kg, u = 6 m/s, u' = 0 m/s

Substitute into equation 1 and 2

2(6)+10(0) = 2v+10v'

2v+10v' = 12.............. Equation 3

6-0 = v-v'

v-v' = 6 ................... Equation 4

Solve equation 3 and 4 simultaneously.

v = 6+v'............. Equation 5

Substitute equation 5 into equation 3

2(6+v')+10v' = 12

12+2v'+10v' = 12

12v' = 12-12

v' = 0/12

v' = 0 m/s.

Also substitute the value of v' into equation 5

v = 6+0

v = 6 m/s

How much force does it take to accelerate a 3.50 kg mass from 3.00 m/s to 17.0 m/s in a time of 2.00 seconds?

Answers

Answer:

Force = 24.5 Newton

Explanation:

Given the following data;

Mass = 3.50 kg

Initial velocity, u = 3 m/s

Final velocity, v = 17 m/s

Time, t = 2 seconds

To find the force;

First of all, we would determine the acceleration of the object using the formula;

Acceleration = (v - u)/t

Acceleration = (17 - 3)/2

Acceleration = 14/2

Acceleration = 7 m/s²

Now, we can find the force using the formula;

Force = mass * acceleration

Force = 3.5 * 7

Force = 24.5 Newton

a man walks 15 meters in 15 seconds. what is his speed​

Answers

Answer:

1 meter per second

Explanation:

Every second, he walks 1 meter because 15 ÷ 15 = 1

Air from a metal can is removed so the pressure in the can decreases to 70000Pa, the can is then sealed. The pressure from outside the can is atmospheric pressure which is 100kPa. The area of one side of the can is 1.5m2, find the resultant force on this side of the can.

Answers

Answer:

F = 45 KN = 45000 N

Explanation:

Considering the downward direction as the positive direction:

[tex]P = P_1 - P_2[/tex]

where,

P = Resultant Pressure = ?

P₁ = Atmospheric Pressure = 100 KPa

P₂ = Pressure inside the can = 70000 Pa = 70 KPa

Therefore,

[tex]P = 100\ KPa - 70\ KPa\\P = 30\ KPa[/tex]

Now the resultant force will be given as:

[tex]F = PA[/tex]

where,

F = resultant force = ?

A = Area of side of can = 1.5 m²

Therefore,

[tex]F = (30\ KPa)(1.5\ m^2)\\[/tex]

F = 45 KN

explain how an earthquake can occur, and briefly describe the forces involved and the effects they have on Earth's crust far from where the earthquake took place. think about how earthquake waves form and travel.

Answers

Answer:

When there is sudden movement on the Earth's crust, earthquakes occur. Earthquakes are caused due to sudden lateral or vertical movements in the crust of the Earth. Or we can say that when tectonic plates ride over the other and cause the collision of orogeny or mountain building.

Explanation:

Which force is most important inside an atom?
O A. Gravity
O B. Air resistance
O C. Friction
O D. Strong nuclear force

Answers

Answer:

D- fuerza nuclear fuerte

Explanation:

Choose forces from the box to complete these sentences.

Answers

Answer:Upthrust, Weight

Explanation:

The upward force is called Upthrust.

The downward force is called weight.

Whenever a body is submerged fully or partially in the liquid, it experiences an upward force that is equal to the weight of water replaced.


7. An object can be accelerating even if its speed is
constant if it
(a) comes to a stop
(b) is not possible
(C) changes direction
(d) moves in a straight line​

Answers

Answer:

I think that the answer might be d

Answer:

D

Explanation:

If a car is moving very fast in a straight road or a highway in such a way that it has reached its limits as soon as it is going that fast it can break it limit

The Doppler Effect is caused by which of the following?

Select all that apply…

A - motion of the source

B - the type of wave

C - original frequency of the source

D - motion of the observer

E - type of medium the wave is in

Answers

Answer:

the type of wave

Explanation:

Description: Doppler Effect works on both light and sound objects. For instance, when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch. Conversely, if it moves away from you, the frequency of the sound waves decreases and the pitch comes down.

A student of mass 45kg, who is undergoing National Service training, takes 6s to climb a flight of stairs that had 36 steps. If each step is 16cm high, what is the power of the student?

Answers

Answer:

Approximately [tex]4.2 \times 10^{2}\; \rm W[/tex] on average in the vertical direction (assuming that [tex]g = 9.8\; \rm N \cdot kg^{-1}[/tex].)

Explanation:

Vertical displacement of this student in [tex]6\; \rm s[/tex]: [tex]36 \times 16\; \rm cm = 36 \times (0.16\; \rm m) = 5.76\; \rm m[/tex].

Average vertical velocity of this student: [tex]v = \displaystyle \frac{5.76\; \rm m}{6\; \rm s} = 0.96\; \rm m \cdot s^{-1}[/tex].

The average vertical force that this student exerts on the ground would be equal to the weight of this student:

[tex]F = W = m \cdot g = 45\; \rm kg \times 9.8\; \rm N \cdot kg^{-1} = 441\; \rm N[/tex].

The average power of this student in the vertical direction is equal to the product of the force and velocity of this student in that direction:

[tex]P = F \cdot v = 441\; \rm N \times 0.96\; \rm m \cdot s^{-1} \approx 4.2\times 10^{2}\; \rm W[/tex].

State two advantages of thermal expansion​

Answers

Higher Power Efficiency  and Eliminates Risk of Compressor Breakdown

A 2.5m long steel piano wire has a diameter of 0.5cm how great is the tention in the wire if it stretches by 0.45cm when tightened taking the young's modulus to be 2.0×10^11 N/m^2

Answers

Answer:                 Their u go i found it their was about 3 pages i did not no what pages u had to do.

Explanation:

A machine raised a load of 360N through a distance of 0.2m. The effort, a force of 50N moved 1.8m during the process. Calculate the efficiency of the machine.
Select one:
a. 40%
b. 100%
c. 80%
d. 60%

Answers

Answer:

c. 80%

Explanation:

Given;

load raised by the machine, L = 360 N

distance through which the load was raised, d = 0.2 m

effort applied, E = 50 N

distance moved by the effort, e = 1.8 m

The efficiency of the machine is calculated as follows;

[tex]Efficiency = \frac{ 0utput \ work }{1nput \ work} \times 100\% \\\\Efficiency = \frac{Load \ \times \ distance \ moved \ by \ load }{Efort \ \times \ distance \ moved \ by \ effort} \times 100\%\\\\Efficiency = \frac{360 \times 0.2}{50 \times 1.8} \times 100\%\\\\Efficiency =80\%[/tex]

Therefore, the efficiency of the machine is 80%

m/s2
Which equation links acceleration, mass and resultant force?
(d)
Tick one box.
resultant force = mass + acceleration
resultant force = mass x acceleration
resultant force = mass - acceleration
resultant force = mass : acceleration
oric Soko

Answers

Answer:

resultant force = mass × acceleration

Answer:

Resultant netforce= mass x acceleration

Explanation:

Fnet is directly proportional to acceleration, and inversly proportinal to mass.

Other Questions
What are the 3 different types of persuasive rhetorical appeals? What is the purpose of keeping the farmhouse as a museum in Animal Farm? Bunnies: Black fur is dominant to white fur. Use the letter "B" and "b" to answer thefollowing questionGenotypes for:Homozygous dominantHeterozygousHomozygous recessivePhenotypes for:Homozygous dominantHeterozygousHomozygous recessive A local variable's scope always ends at the closing brace of the block of code in which it is declared. True/False A store is having a sale on jelly beans and almonds. For 7 pounds of jelly beans and 9 pounds of almonds, the total cost is $46. For 5 pounds of jelly beans and 3 pounds of almonds, the total cost is $20. Find the cost for each pound of jelly beans and each pound of almonds. Why did Animal Farm fail essay? Is frequency and wavelength the same? How do you know when fish is bad? the invention of a machine to make plastic corks for wine bottles is an example of a change that has severely affected companies that produce traditional cork. a widely accepted scientific idea usually is based on: group of answer choices results of one experiment or observation that refuted old ideas and supported the correctness of the new idea. received wisdom from sacred books. an interlocking web of important experimental results or observations that support the correctness of the idea. socially conditioned ideas of scientists without reference to observatio the use of generic methods and classes have two primary primary advantages over code that is written to simply use object references for the data type instead. describe these two significant advantages. Which of the following statements about dinoflagellates is false?A) They possess two flagella.B) Some cause red tides.C) their walls are composed of cellulose plates.D) Many types contain chlorophyll.E) Their fossil remains form limestone deposits. Select the descriptions that apply to the ribosome.a cellular structure that is composed of both RNA and proteina membranebound organelle that stores digestive enzymesa cellular structure that is responsible for the synthesis of proteinsa membranous network associated with protein productiona membrane-enclosed organelle involved with cellular respiration our house was built in the 1940s, a sturdy bungalow-style. the bia superintendent, a pompous, natty, abnormally short bureaucrat who was profoundly hated, had once lived in it. True or False If you were an entrepreneur and want to set up a business, which type of marketwould you choose and why? Give your shop a suitable name and also suggest howyou would attract customers. E-commerce ________ is the ability of an organization to create a strong presence among consumers in many places, with minimal time constraints, to sell them products and services.prevalenceselectivitypresenceubiquity adriana graphic design receives $1,550 from a client billed in a previous month for services provided. which of the following general journal entries will adriana graphic design make to record this transaction? What was the goal of the National Origins Act of 1924? A. To increase immigration from Asia B. To limit all immigration C. To increase immigration from Asia D. To end immigration Estimate y when x = 8 from the best fitted straight line y = 13.06 + 0.6x. The temperature, t, in degrees Fahrenheit, can be found by counting the number of cricket chirps, c, heard in 14 seconds and then adding 40. The equation t = c + 40 models the relationship between the temperature and the number of cricket chirps. What is true about the graph that represents this real-world scenario? Select two options.The graph is continuous.All values of t must be positive.A viable solution is (-2,38)A viable solution is (0.5, 40.5)A viable solution is (10,50)