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
Studentka2010 [4]
3 years ago
10

Four people weigh a standard mass of 10.00 g on the same balance. The first person obtains a reading of 12.00 g, the second pers

on reads 9.14 g, the third person reads 10.33 g, and the fourth person reads 12.55 g. These readings suggest the balance is
Precise

Accurate

Neither accurate nor precise

Accurate and precise
Physics
2 answers:
Mars2501 [29]3 years ago
8 0

Answer:

Neither accurate nor precise.

Explanation:

Accuracy is defined as the degree of agreement between the result of a measurement and a true value of the measurand. In other words, it refers to how close the measurements of a measurement system are to the actual value.

Precision is defined as the degree of agreement between the independent results of a measurement, obtained under stipulated conditions. That is, precision refers to how close the measurements of a measurement system are to the true value.

Both are independent of each other.

The correc answer is "Neither accurate nor precise."

The individual measurements are not close to each other and are therefore not accurate. But y are close to the actual value (10 g) and are therefore not exact.

miskamm [114]3 years ago
7 0
The above readings suggest that the balance is Accurate and Precise.<span />
You might be interested in
The power in an electrical circuit is given by the equation P= RR, where /is
Rainbow [258]

Answer:D

Explanation:Electric power=I*I*R

=12*12*100

=14400watts

6 0
3 years ago
On the way to school, Jed traveled 100m north, 300m east, 100 north, 100m east, and 100m north. A.) Find the total distance trav
Oduvanchick [21]

Answer:

Total distance = 700 m

Displacement = 500 m

Explanation:

Notice that Jed travelled a total of 3 x 100 m = 300 m in the North direction, and 300 m + 100 m = 400 m in the East direction. Therefore the total distance he travelled is:  300 + 400 = 700 m.

But the actual displacement is given by the Pythagorean theorem as the hypotenuse of a right angle triangle of legs 300 m and 400 m:

displacement = \sqrt{300^2+400^2} =\sqrt{250000} =500\,m

5 0
3 years ago
What force could be applied to a box to make the net force in the horizontal direction of zero​
Kazeer [188]

If there is no friction, the force that moves the box forward horizontally must be matched by the same force.

If there is friction, then the force moving it forward = frictional force + the additional force you need to add.

6 0
3 years ago
17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air ( 3.0×106
sleet_krkn [62]

Answer:

Explanation:

Distance between plates d = 2 x 10⁻³m

Potential diff applied = 5 x 10³ V

Electric field = Potential diff applied /  d

= 5 x 10³  / 2 x 10⁻³

= 2.5 x 10⁶ V/m

This is less than  breakdown strength for air  3.0×10⁶ V/m

b ) Let the plates be at a separation of d .so

5 x 10³ / d = 3.0×10⁶ ( break down voltage )

d = 5 x 10³  / 3.0×10⁶

= 1.67 x 10⁻³ m

= 1.67 mm.

5 0
3 years ago
As a glacier melts, the volume V of the ice, measured in cubic kilometers, decreases at a rate modeled by the differential equat
DaniilM [7]

Answer:

the volume in terms of time t ⇒ \\V = e^{0.05t} + 399\\

Explanation:

Given that :

\frac{dv}{dt}= kv\\\\\int\limits \, \frac{dv}{v}=  \int\limits \, kdt\\In v = kt + C_1\\v = e^{kt} + C\\400 = e^{k*0} + C\\400 = 1 + C\\C = 400 -1\\C = 399

V = e^{kt} + 399

When v = 300 ;  \frac{dv}{dt}= - 15

then

\frac{dv}{dt}= kv\\\\-15 = 300*k\\\\k = \frac{-15}{300}\\\\\\k = \frac{-1}{20}\\\\k = -0.05

∴ \\V = e^{0.05t} + 399\\

Therefore, the volume in terms of time t ⇒ \\V = e^{0.05t} + 399\\

6 0
3 years ago
Other questions:
  • Over a period of one year, how much of the overall (night) sky would a Bellingham observer be able to see?
    10·1 answer
  • Could anyone help me out ?
    13·2 answers
  • What is one way you can destroy a magnet’s magnetism? a. by putting it in water b. by cooling it c. by heating it d. by breaking
    12·2 answers
  • What is the photoelectric effect?
    13·2 answers
  • The rms (root-mean-square) speed of a diatomic hydrogen molecule at 50∘C is 2000 m/s. Note that 1.0 mol of diatomic hydrogen at
    13·1 answer
  • Question 20 Unsaved The graph below represents changes in water. What process is occurring during section "B" of the graph? Ques
    9·2 answers
  • You swing a 2.2 kg stone in a circle with radius 75 cm. At what speed do you need to swing it so its
    8·1 answer
  • A block with mass m =6.4 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.28 m.
    5·1 answer
  • James Prescott Joule demonstrated that work could generate heat using his churn. In order to truly demonstrate that energy is co
    13·1 answer
  • The scientific unit used to measure distance is the?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!