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
MariettaO [177]
3 years ago
8

1. A toy car is marked to go at 0.5m/s, which of the following sets of

Physics
1 answer:
Lostsunrise [7]3 years ago
8 0

Answer:

b. 0.6m/s, 0.7m/s, 0.61m/s, 0.62m/s

Explanation:

Precision of a measurement is the closeness of the experimental values to one another. Hence, experimental measurements are said to be precise if they are close to each other irrespective of how close they are to the accepted value. Precision can be determined by finding the range of each experimental value. The measurement with the LOWEST RANGE represents the MOST PRECISE.

Note: Range is the highest value - lowest value

Set A: 1.5 - 0.8 = 0.7

Set B: 0.7 - 0.6 = 0.1

Set C: 2.4 - 2.0 = 0.4

Set D: 3.1 - 2.9 = 0.2

Set B has the lowest range (0.1), hence, represent the most precise value.

You might be interested in
An elevator cab and its load have a combined mass of 1600 kg. Find the tension in the supporting cable when the cab, originally
amid [387]

The tension in the supporting cable when the cab originally moves downward is 18422.4 N

What is tension?

Tension is described as the pulling force by the means of a three-dimensional object.

Tension might also be described as the action-reaction pair of forces acting at each end of said elements.

Here,

m =combined mass = 1600 kg

s = Displacement of the elevator = 42 m

g = Acceleration due to gravity = 9.81 m/s²

u = Initial velocity = 12 m/s

v = Final velocity = 0

According to the equation of motion:

v^{2} - u^{2} = 2as

0 - 12^2 = 2*a*42

a = - 144 / 84

a = - 1.714 m/s^2

Now let's write the equation of the forces acting on the elevator. Taking upward as positive direction:

T-mg = ma

T = m(g-a)

T = 1600 ( 9.8-(-1.74))

T=18422.4 N

Hence,

The tension in the supporting cable when the cab, originally moving downward is 18422.4 N

Learn more about tension here:

<u>brainly.com/question/13772148</u>

#SPJ4

6 0
2 years ago
Which object has the greatest momentum...and why
damaskus [11]
The formula for momentum is p=mv where p is the momentum (kgms-1), m is the mass (kg) and v is the velocity (ms-1). So, to work out the momentum, we just multiply these numbers together and work out which is the largest.

1) 12kgms-1
2) 10kgms-1
3) 27kgms-1
4) 16kgms-1

Therefore the object with the greatest momentum is 3 - a 9kg mass moving at 3m/s
7 0
3 years ago
Read 2 more answers
Jupiter nudges the asteroids through the influence of:.
strojnjashka [21]
Orbital resonances.

Hope this helps!
Please give Brainliest!
4 0
2 years ago
What is the most important force in astronomy?
CaHeK987 [17]
This is probably gravity because without gravity, everything would just be some hot dust floating through space
4 0
3 years ago
9. Identify What does<br> mechanical advantage<br> measure?
xz_007 [3.2K]

Answer: Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The rectangular plates in a parallel-plate capacitor are 0.063 m x 5.4 m. A distance of 3.5 x 10^-5m separate the plates. The pl
    9·1 answer
  • A diffraction grating is made up of slits of width 260 nm with separation 810 nm. The grating is illuminated by monochromatic pl
    15·1 answer
  • Two waves collide and the temporary combined waves that results is smaller that the original wave.
    9·1 answer
  • Menciona generaciones de particulas y explique cada una
    13·1 answer
  • The speed of sound is 343 m/s in air at room temperature. What is the wavelength of a B-flat musical note that has a frequency o
    11·1 answer
  • An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles. What is the average speed for the tri
    14·1 answer
  • Which of the following could be used to create an open circuit?
    11·1 answer
  • Find the focal length of a lens of power-2.0D . What type of lens is this ?
    10·1 answer
  • What quantities belong in cells X and Y?
    11·1 answer
  • Q|C The speed of a one-dimensional compressional wave traveling along a thin copper rod is 3.56 km/s . The rod is given a sharp
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!