Measuring the size of a spefic object might include which of these SI units?
A.meter ,sound
B.candela,mole
C.kilogram,ampere
D.meter,killogram
2 months ago
Solution 1
2 months ago
Choice D - meter is a the unit of measure for length and kilogram is for mass.
Solution 2
2 months ago
D meter,kilogram
is the
right
choice...
Buona fortuna amici!!!
📚 Related Questions
Question
Which one describes how much matter an object contains,using SI units?
A.43kg
B.65m
C.38pounds
D.89second
A.43kg
B.65m
C.38pounds
D.89second
Solution 1
Mass is how much matter an object contains and it is measured in kilograms, so choice A is correct: 43 kg.
Solution 2
Answer:
choice A
Explanation:
Question
can the body have acceleration with zero velocity?give reason
Solution 1
No body object or point can have a constant velocity if there is a change in velocity aka acceleration.
We know that the derivative of velocity is equal to acceleration.
This means that if you take the derivative of any constant velocity : 2mph, 5mph, 85mph, etc, you will always get the value zero for acceleration. This includes the constant zero as well. In this example we would take the derivative of zero which is zero.
Comprendes?
We know that the derivative of velocity is equal to acceleration.
This means that if you take the derivative of any constant velocity : 2mph, 5mph, 85mph, etc, you will always get the value zero for acceleration. This includes the constant zero as well. In this example we would take the derivative of zero which is zero.
Comprendes?
Question
What is the meaning of lightyear?
Solution 1
"Lightyear" is a distance ... specifically, the distance that light travels
through vacuum in one year of 365 days.
It's equivalent to 9.454 x 10^12 kilometers, or 5.875 x 10^12 miles .Â
through vacuum in one year of 365 days.
It's equivalent to 9.454 x 10^12 kilometers, or 5.875 x 10^12 miles .Â
Question
  Our understanding of the atom has changed over time. Which idea that was once accepted is now considered scientifically inaccurate? A. The nucleus is the center of the atom.  B. An atom is solid material.  C. Electrons have a negative charge.  D. Electrons are arranged in layers.
Solution 1
my sis just took the test the answer is
B.) An atom is solid material.
or An atom is a solid sphere.
Solution 2
The correct answer to the question is : B) An atom is a solid material.
EXPLANATION:
From Rutherford's alpha ray scattering experiment, we know that most of the spaces in an atom is empty.
It is so because most of the alpha particles in that scattering experiment had gone undeviated without any deflection by the positively charged nucleus.
Hence, atom can not be considered as a compact solid sphere.
Question
  Consider a bathtub filled with water, with a plug in the drain. How long would this be considered a closed system? A. a few seconds  B. 2 hours  C. 10 hours  D. 1–2 days
Solution 1
Is this a trick question?
 . . a closed system doesn't exchange any matter with its surroundings and isn't subject to any external force, it is essentially an isolated system.
In the case of a bathtub, it is open immediately to evaporation, so the truth is this system is never closed
the correct answer is E.) none of the above
 . . a closed system doesn't exchange any matter with its surroundings and isn't subject to any external force, it is essentially an isolated system.
In the case of a bathtub, it is open immediately to evaporation, so the truth is this system is never closed
the correct answer is E.) none of the above
Solution 2
Answer:
The answer is a few seconds since it is closed but the water drains after 3-5 seconds.
Explanation:
I took the test. BAM!
Question
What is the defining feature of a system? A. properties that don’t change B. collision  C. interaction  D. gravitational force
Solution 1
 . . . a system is a set of interacting/interdependent components contained within a boundary
 . . so the answer is C. interaction
 . . so the answer is C. interaction
Question
why a steel ship becomes magnetized as it is constructed?
Solution 1
Iron, and to a lesser degree, steel, can only become magnetised by passing an electrical current through it (an electromagnet). So a steel ship does not become magnetised in the accepted sense during construction.Â
However, any large mass of iron will affect the accuracy of a magnetic compass, causing it to deviate wildly from magnetic North. This problem was encountered when iron ships were first constructed in the mid-19 Century. It was overcome by mounting the compass in a 'binnacle', a housing containing two large soft iron balls either side of the compass itself, which counteracted the effect of the hull and balanced the compass so that it read correctly
However, any large mass of iron will affect the accuracy of a magnetic compass, causing it to deviate wildly from magnetic North. This problem was encountered when iron ships were first constructed in the mid-19 Century. It was overcome by mounting the compass in a 'binnacle', a housing containing two large soft iron balls either side of the compass itself, which counteracted the effect of the hull and balanced the compass so that it read correctly
Question
What can be absorbed or released as the result of a chemical reaction?
Solution 1
energy is released or absorbed ,but no loss in total molecules,each of which consists of one atom of oxygen and two of hydrogen,are broken down.!
Solution 2
Chemical reaction involves absorption or release of heat energy.
Question
This is science
A girl cycles for 3hrs at a speed of 40km/h --what distance did she travel
A girl cycles for 3hrs at a speed of 40km/h --what distance did she travel
Solution 1
(40 km/hr) x (3 hr) = 120 km .
Question
when we touch a steel rod and a paper simultaneously we feel that the rod is comparatively colder .why?
Solution 1
it is so because the steel is more colder than our body.
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