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
Nutka1998 [239]
3 years ago
9

A group of students use a scale to measure the mass of an object. Which of the following would be the appropriate base unit of m

easurement to use: a meter b Liter c gram d Newton e none of these
Physics
1 answer:
MissTica3 years ago
4 0

Answer:

c Gram

Explanation:

Mass is an intrinsec property of every object; it is somehow a measure of the "amount of matter" contained in the object.

The SI units of the mass is the kilogram (kg), where one of the sub-multiple of the kilogram is the gram (g). For measuring small objects, therefore, the gram is the appropriate unit.

The other units are wrong because:

- The meter is the unit of measure of the length

- The liter is a unit of measure for the volume

- Newton is the unit of measure for the force

You might be interested in
A series RL circuit with L = 3.00 H and a series RC circuit with C = 3.00 F have equal time constants. If the two circuits conta
Tems11 [23]

Answer:

(a) R = 1Ω

(b) τ = 3

Explanation:

The time constants of the given circuits are as follows

\tau_{RL} = \frac{L}{R}\\\tau_{RC} = RC

If the two circuits have equal time constants, then

\frac{L}{R} = RC\\R^2 = \frac{L}{C} = \frac{3}{3} = 1\\R = 1\Omega

Therefore, the time constant in any of the circuits is

\tau = RC = 3

6 0
3 years ago
there is a rusted nut we have a two spanners each of i 15 cm and 20 CM respectively which spanner is suitable to open the nut an
Novosadov [1.4K]
<h2>Answer : </h2>

20cm spanner is suitable to open this nut , Because we feel easy to apply force at the end of spanner to rusted nut. It means that as the perpendicular distance between force and axis of rotation increase the magnitude of moment also increase.

I think the Answer will helps you.....

Thank you ☺️☺️☺️

8 0
3 years ago
The 8.00-cm long second hand on a watch rotates smoothly.
dolphi86 [110]
The watch hand covers an angular displacement of 2π radians in 60 seconds.

ω = 2π/60
ω = 0.1 rad/s

v = ωr
v = 0.1 x 0.08
v = 8 x 10⁻³ m/s
4 0
3 years ago
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle soun
adoni [48]

Answer: v = (33320 - 340f2)/( f2 + 98)

Explanation: this question refers to Doppler effect, hence,

f1 = { V / (V - v)} x f2

f1 = 98Hz, f2 = 76 Hz, V = 340m/s, v = ?, fs = fsourcs

For f1,

98 = { 340 / (340 + v)} x fs ...(i)

for f2,

f2 = { 340 / (340 - v)} x fs ... (ii)

Divide (ii) by (i)

98/f2 = [{ 340 / (340 + v)} x fs]÷ [ 340 / (340 - v)} x fs]

98/f2 = {340 / (340 + v)} x fs x (340 - v)} / 340 x fs

98/f2 = (340 + v)/ (340 - v)

Cross multiplying

98(340 - v) = f2 (340 + v)

33320 - 98v = 340f2 + vf2

Collecting like terms

vf2 +98v = 33320 - 340f2

v(f2 +98) = 33320 - 340f2

v = (33320 - 340f2)/( f2 + 98)

5 0
4 years ago
Equal forces that do not cause a change in an object's motion
ss7ja [257]

Answer:

Balanced forces.

Explanation:

The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting in opposite directions are called balanced forces. Balanced forces acting on an object will not change the object's motion. When you add equal forces in opposite direction, the net force is zero.

6 0
3 years ago
Other questions:
  • Explain why cells are so small, considering the relationship between surface area and volume for objects of different sizes but
    12·1 answer
  • 5. Limit on debate in the Senate is called
    9·2 answers
  • Michael decided to build a model roller coaster with a car that has a mass of 3 kg. If at point c it travels 6 m/s, what is the
    14·1 answer
  • A spaceship is moving past us at a speed close to the speed of light. If we could measure the mass of the spaceship as it goes b
    13·1 answer
  • 3. Someone at the third-floor window (12.0 m above the ground) hurls a ball downward at an angle of
    11·1 answer
  • How many layers of the Earth are there, and what are these layer's names in order from centermost, to outermost, Brainliest for
    5·1 answer
  • PLEASE HELP 50 POINTS SPACE QUESTION
    7·1 answer
  • Has anyone heard from joshuasalazar697?? PLEASE LET ME KNOW ASAP I NEED TO TALK TO HIM ITS REALLY IMPORTANT!!
    9·1 answer
  • A force of 100N stretches an elastic string to a total length of 20cm. if an additional force of 100N stretches the spring 5 cm
    13·1 answer
  • Acrostic poem for transformation
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!