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
astra-53 [7]
2 years ago
11

Which of the following are inertial reference frames? A. A car driving at steady speed on a straight and level road. B. A car dr

iving at steady speed up a 10∘ incline. C. A car speeding up after leaving a stop sign. D. A car driving at steady speed around a curve.

Physics
2 answers:
Aloiza [94]2 years ago
8 0

Answers:

A. A car driving at steady speed on a straight and level road.

B. A car driving at steady speed up a 10∘ incline.

Explanation:

An object is said to be in an inertial reference frame if the net force acting on the object is zero. According to Newton's second law, this also means that the acceleration of the object is also zero:

F=ma

Since F=0, a=0 as well.

Let's now analyze each case.

A. A car driving at steady speed on a straight and level road. --> YES: this is an inertial reference frame, because the car is keeping a constant speed and a constant direction, so its velocity is not changing, and its acceleration is zero.

B. A car driving at steady speed up a 10∘ incline. --> YES: this is an inertial reference frame, because the car is keeping a constant speed and a constant direction, so its velocity is not changing, and its acceleration is zero.

C. A car speeding up after leaving a stop sign. --> NO: this is not an intertial reference frame, because the car is speeding up, so it is accelerating.

D. A car driving at steady speed around a curve. --> NO: this is not an inertial reference frame, because the car is changing direction, therefore its velocity is changing and so the car is accelerating.

So the only two choices which are correct are A and B.

MrRissso [65]2 years ago
3 0

Answer:

I’s B

Explanation:

You might be interested in
Please help me, I beg you​
MA_775_DIABLO [31]

Answer:

40g

Explanation:

Solubility of Copper sulfate at 90°=60g

Solubility of potassium bromide at 90°=100g

100g-60g=40g

8 0
3 years ago
A temperature of 20°C is equal to ? °F.
Papessa [141]
The answer is 68 F. i hope this helps
6 0
3 years ago
Read 2 more answers
Which of Newton's laws explains why satellites need very little fuel to stay in oribit?
Angelina_Jolie [31]

Sattelites don't need any fuel to stay in orbit. The applicable law is...."objects in motion tend to stay in motion". Having reached orbital velocity, any such object is essentially "falling" around the earth. Since there is no (or at least very little) friction in the vacuum of space, the object does not slow.... It simply continues.


Sattelites in "low" earth orbit do encounter some friction from the very thin upper atmosphere, and they will eventually "decay".

:)

4 0
3 years ago
Yoyoyoyoyoyoyoyoyoyoyoyoyoyoyoy
Vikentia [17]

Answer:

Yoyoyoyoyooyoyy

Explanation:

Yoyoyoyoyoyoyoyoyooy

4 0
2 years ago
Read 2 more answers
Which of the following best defines insulator?
aliya0001 [1]

Answer:

A substance with low ability or no ability to conduct energy.

Such as Rubber,Silicone,Plastic

6 0
3 years ago
Other questions:
  • A projectile is fired in such a way that its horizontal range is equal to 14.5 times its maximum height. what is the angle of pr
    6·1 answer
  • Which term denotes that the mere presence of other people in your environment affects your behavior
    13·2 answers
  • How are speed and velocity similar ?
    9·2 answers
  • 1.A wagon with a mass of 20 kg is accelerating at 0.5 m/s2. What is the force on it?
    12·1 answer
  • The __________ association area is responsible for perceiving and attending to stimuli, and the __________ association area is r
    5·1 answer
  • how much power does an electric device use if the current is 36.0 amps and the resistance is 3.9 ohms? a. 140 watts b. 5,100 wat
    10·1 answer
  • Describe the difference between nuclear energy and light energy
    9·1 answer
  • I NEED HELP IS URGENT PLEASE!!!
    5·1 answer
  • P waves can travel through Earth's outer core, but S waves cannot. Because of this, scientists know
    9·2 answers
  • Seismic waves do not travel along the Earth’s surface. Please select the best answer from the choices provided T F.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!