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
Lubov Fominskaja [6]
2 years ago
10

A rectangular plate has a length of (22.4 ± 0.2) cm and a width of (8.4 ± 0.1) cm. Calculate the area of the plate, including it

s uncertainty.
Physics
1 answer:
blsea [12.9K]2 years ago
8 0
Area of the rectangle = Length  x  Width
We will calculate the percentage of uncertainties. 
For a length: p 1 = ( 0.2 · 100 ) : 22.4 = 20 : 22.4 = 0.893
For a width: p 2 =  ( 0.1  · 100 ) : 8.4 = 10 : 8.4 = 1.190
p 1 + p 2 = 0.893 + 1.190 = 2.083 %
A = 22.4 · 8.4 = 188.16 +/-  2.083 %
 Uncertainty: 188.16 · 0.02083  = 3.92 
A = 188.16 +/- 3.92 cm²     
You might be interested in
Melting wax
MaRussiya [10]
It would have to be c because it is a chemical change. your welcome!!!!!
3 0
3 years ago
Read 2 more answers
The force of gravity considers which two parts?
attashe74 [19]
Mass of object/source
Gravity
Fg=mg
3 0
2 years ago
a racing car undergoes a uniform acceleration of 4.00m/s2. if the net force causing the acceleration is 3.00 times 10^3 N, what
yKpoI14uk [10]

Answer: 750Kg

Explanation:

Recall that force is the product of the mass M, of an object moving at a uniform acceleration.

i.e Force = Mass x Acceleration

In this case, Mass = ?

Force = 3.00 x 10^3 N = (3.00 x 1000N)

= 3000N

Uniform acceleration = 4.00m/s^2

Force = Mass x Acceleration

3000N = Mass x 4.00m/s^2

Mass = (3000N/4.00m/s^2)

Mass = 750Kg (The SI unit of mass is kilograms)

Thus, the mass of the car is 750Kg

4 0
3 years ago
Four aqueous solutions and their concentrations are shown in the above illustration. which of the solutions is most likely to be
Elza [17]
The solution that would most likely be a strongest conductor of electricity is the solution that is most saturated or concentrated. This is because the atoms that are found within the aqueous solutions have become positively charged resulting to the attraction of negatively charged ions that are found in electricity. On the other hand, the least conductive from the aqueous solutions would be the most unsaturated one because of less conductive ions present.
3 0
2 years ago
STUDY QUESTIONS
tankabanditka [31]

Answer:

The blade of sharpener is made up of iron. Iron is a magnetic material because of this pencil sharpener gets attracted by the poles of a magnet although the body is made up of plastic.

5 0
2 years ago
Other questions:
  • How large an expansion gap should be left between steel railroad rails if they may reach a maximum temperature 36.0°C greater th
    15·1 answer
  • A jet lands at 80.0 m/s, the pilot applying the brakes 2.0 s after landing.
    8·1 answer
  • When sugar is added to water, the sugar dissolves and the resulting liquid is clear. Have the combined sugar and water formed a
    10·2 answers
  • Ariana is accelerating her car at a rate of 4.6 m/s2 for 10 seconds. Her starting velocity was 0 m/s.
    6·1 answer
  • Three uses of laser technology
    7·1 answer
  • A particle of mass 4.00 kg is attached to a spring with a force constant of 100 N/m. It is oscillating on a frictionless, horizo
    12·1 answer
  • Two wires are parallel and one is directly above the other. Each has a length of 50.0 m and a mass per unit length of 0.020 kg/m
    11·2 answers
  • HELP PLEASE! 98 POINTS FOR ANSWER
    6·1 answer
  • A baseball is thrown vertically upward with an initial velocity of 30.0 m/s. The maximum height gained by the ball is?
    11·1 answer
  • A car possesses 20 000 units of momentum. What would be the car's new momentum if its mass was doubled
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!