1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
diamong [38]
3 years ago
10

4.Keeping in mind the kinetic energy of a moving vehicle, how can a driver best prepare to enter sharp curves in the roadway?

Physics
1 answer:
dsp733 years ago
6 0
The kinetic energy of the vehicle should be such it balances the centripetal and centrifugal forces whereas coming into and crossing the curve. whereas coming into, the driving force ought to scale back speed by gently persist brakes, till apex purpose has been reached. this can be the nearest purpose of the car to the within of curve line. Once that has been reached, accelerator ought to be gently pressed to use some force to pull the car<span> out of the curve.

Explanation:
He should slowly slow down the speed

</span>The brake is hard<span> as </span>potential in the<span> entry to the curve, then with less force as </span>you start<span> turning. The slowest </span>purpose ought to<span> be at the apex of the curve, </span>once that you're fast once more.

<span>Your tires have a limit to their grip before they slip (skid). </span>the concept<span> is to manage the forces on them. The </span>additional<span> lateral force from the </span>turn there's<span>, the less linear force </span>you'll<span> use braking or </span>fast.

<span>This is why corners </span>are<span> the passing zones on the track. If </span>you'll<span> out-brake </span>the opposite<span> guy going into the </span>flip<span>, </span>you'll<span> be </span>quicker within the turn, however<span> brake too late and </span>you will not<span> be </span>ready to flip while not<span> skidding.</span>
By formula, Kinetic Energy is:
<span>mass of the body time (the </span>speed<span> of the body)  </span>everywhere two.

The mass of the body remains constant.
<span>Velocity is variable.</span>

You might be interested in
a teacher pushed a 10kg desk across a floor for a distance of 5m. she exerted a horizontal force of 20n. how much work was done?
serious [3.7K]
Work Done = Force x distance
Since she exerted a horizontal force of 20N over a distance of 5m, the work done is 20N x 5m which is equals to 100 joules
7 0
3 years ago
Which is the result of using a machine?
Eddi Din [679]
Correct Answers is A.

The machines gives us some mechanical advantage. This means the mechanical average makes the work output greater than the work input
Simple most example is a lever. The force applied is smaller and the output work is larger as compared to input.

Option B cannot be true, as there must be a force to get some work done.
Option C and D are inverse of what a machine is designed for. A small force can be exerted through a large distance to have a large force exerted through a small distance. Common Example of this principle is a screw opener. 
3 0
3 years ago
When you changed from low to high power, how did the change affect the working distance of the lens?
Basile [38]

The working distance gets shorter as the magnification gets bigger. In order to focus, the high-power objective lens must be significantly nearer to the specimen than the low-power lens. Magnification is negatively correlated with working distance.

Magnification change The magnification of a specimen is increased by switching from low power to high power. The magnification of an image is determined by multiplying the magnification of the objective lens by the magnification of the ocular lens, or eyepiece.

The geometry of the optical system connects the magnifying power, or how much the thing being observed seems expanded, and the field of view, or the size of the object that can be seen.

To know more about  working distance

brainly.com/question/13551539

#SPJ4

4 0
1 year ago
What quantity of heat is needed to convert 1 kg of ice at -13 degrees C to steam at 100 degrees C?
Effectus [21]

Answer:

Heat energy needed = 3036.17 kJ

Explanation:

We have

     heat of fusion of water = 334 J/g

     heat of vaporization of water = 2257 J/g

     specific heat of ice = 2.09 J/g·°C

     specific heat of water = 4.18 J/g·°C

     specific heat of steam = 2.09 J/g·°C

Here wee need to convert 1 kg ice from -13°C to vapor at 100°C

First the ice changes to -13°C from 0°C , then it changes to water, then its temperature increases from 0°C to 100°C, then it changes to steam.

Mass of water = 1000 g

Heat energy required to change ice temperature from -13°C to 0°C

          H₁ = mcΔT = 1000 x 2.09 x 13 = 27.17 kJ

Heat energy required to change ice from 0°C to water at 0°C

          H₂ = mL = 1000 x 334 = 334 kJ

Heat energy required to change water temperature from 0°C to 100°C  

          H₃ = mcΔT = 1000 x 4.18 x 100 = 418 kJ    

Heat energy required to change water from 100°C to steam at 100°C  

          H₄ = mL = 1000 x 2257 = 2257 kJ    

Total heat energy required

          H = H₁ +  H₂ + H₃ + H₄ = 27.17 + 334 + 418 +2257 = 3036.17 kJ

Heat energy needed = 3036.17 kJ

5 0
3 years ago
When you drop a 0.43 kg apple, Earth exerts
Archy [21]

Answer:

The acceleration of the earth is 7.05 * 10^-25 m/s²

Explanation:

<u>Step 1:</u> Data given

mass of the apple = 0.43 kg

acceleration = 9.8 m/s²

mass of earth = 5.98 * 10 ^24 kg

<u>Step 2:</u> Calculate the acceleration of the earth

Following the third law of Newton F = m*a

F(apple) = F(earth) = m(apple)*a(apple)

F(apple) = 0.43 kg * 9.8 m/s² = 4.214 N

a(earth) = F(apple/earth)/m(earth)

a(earth) = 4.214N /5.98 * 10 ^24 kg

a(earth) = 7.05 * 10^-25 m/s²

The acceleration of the earth is 7.05 * 10^-25 m/s²

4 0
3 years ago
Other questions:
  • The principle characteristic distinguishing marine and freshwater ecosystems is _______. a. temperature b. presence of corals c.
    15·2 answers
  • A wood pipe having an inner diameter of 3 ft. is bound together using steel hoops having a cross sectional area of 0.2 in.2 The
    9·1 answer
  • How is work defined in physics
    12·1 answer
  • Jenny is sitting on a sled on the side of a hill inclined at 15°. What force is required to keep the sled from sliding down the
    7·1 answer
  • A ferris wheel car with a mass of 350 kg, travels in a
    10·1 answer
  • The ________ is the difference between the volume in the combustion chamber above the piston when the piston is at bottom dead c
    6·1 answer
  • A photon has momentum of magnitude 8.30×10−28 kg⋅m/s . Part APart complete What is the energy of this photon? Give your answer i
    9·1 answer
  • The density of a hippo is approximately 1030kg/m^3,so it sinks to the bottom of the freshwater lakes and rivers. A 1500kg hippo
    14·1 answer
  • Describe how fallacies can be created and spread
    12·1 answer
  • PLEASE HELP!! WILL GIVE POINTS
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!