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
Darya [45]
4 years ago
6

Which of the following quantities represent mass?

Physics
1 answer:
lisabon 2012 [21]4 years ago
6 0

Answer:

Explanation:

a ) 12.0 lbs  -  mass

b ) .34 g   - mass

c ) 120 kg    - mass  

As lbs , g and kg are units of mass , these things represent mass . lbs is FPS unit of mass and kg is  SI unit . g is CGS unit of force .

d ) 1600 kN     It represents force because kN or kilonewton is unit of  force .

e ) it represents , length or distance because m or metre  is unit of length .

f ) 411 cm It represents length or distance because cm is smaller unit of length

g ) 899 MN or million newton .  Like d ) It also represents force . Million newton is higher unit of force .

You might be interested in
a fixed amount of ideal gas is held in a rigid container that expands negligibly when heated. at 20 the gas pressure is p. if we
pantera1 [17]

Answer:

When the temperature of the gas is increased from 20 to 40, the pressure will be 2p

Explanation:

Given;

initial temperature of the gas, T₁ = 20 K

final temperature of the gas, T₂ = 40 k

initial pressure of the gas, P₁ = P

final pressure of the gas, P₂ = ?

Apply pressure law of gases;

\frac{P_1}{T_1} = \frac{P_2}{T_2} \\\\P_2 = \frac{P_1T_2}{T_1} \\\\P_2 = \frac{40P}{20} \\\\P_2 = 2P

Therefore, when the temperature of the gas is increased from 20 to 40, the pressure will be 2p

5 0
3 years ago
A 34-kg child runs with a speed of 2.8 m/s tangential to the rim of a stationary merrygo-round. The merry-go-round has a momentu
tekilochka [14]

Answer: 0.43\ rad/s

Explanation:

Given

Mass of child m=34\ kg

speed of child is v=2.8\ m/s

Moment of inertia of merry go round is I=510\ kg.m^2

radius r=2.31\ m

Conserving the angular momentum

\Rightarrow mvr=I\omega \\\Rightarrow 34\times 2.8\times 2.31=510\times \omega\\\\\Rightarrow \omega=\dfrac{219.912}{510}\\\Rightarrow \omega=0.43\ rad/s

7 0
3 years ago
A wave has a wavelength of 11 mm and a frequency of 11 hertz. What is its speed?
eimsori [14]

Wave speed = frequency (in Hz) x wavelength (in m) so wave speed = 11 x 0.011 = 0.121 m/s

5 0
3 years ago
Read 2 more answers
Two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at 85 miles per
kakasveta [241]
<span>Since the trains area headed in completely opposite directions, the rate at which they gain distance from each other is simply equal to the sum of the magnitudes of their velocities, in this case 85 + 75 = 160 miles per hour. Therefore, the amount of time it will take for them to be 352 miles apart is 352/160 = 2.2 hours, or 2 hours and 12 minutes.</span>
3 0
3 years ago
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
jonny [76]

Answer:

b

Explanation:

I've been in a couple of bad relationships and I can say by experience that it is very stressful.

5 0
3 years ago
Read 2 more answers
Other questions:
  • 2 Points
    9·1 answer
  • The motor in a refrigerator has a power output of 400 W. If the freezing compartment is at 273 K and the outside air is at 306 K
    15·1 answer
  • Im a freshman in highschool pls help
    10·1 answer
  • If kenny lifts a box that weighs 6.4 kg, how many grams is he lifting?
    5·2 answers
  • What is the moment of inertia of the object starting from rest if it has a final velocity of 5.9 m/s? Express the moment of iner
    15·1 answer
  • The table lists the values of the electrical force and the gravitational force between two protons.
    14·2 answers
  • A car drives around a curve with a radius of 42 m at a velocity of 24m/s. What is the centripical acceleration of the car?
    8·1 answer
  • An object has an average acceleration of + 6.24 m/s ^ 2 for 0.300 s . At the end of this time the object's velocity is + 9.31 m/
    9·1 answer
  • A hot air balloon traveled 4 hours at a speed of 200 km/hr. What distance did it travel?
    13·1 answer
  • An aluminum-alloy rod has a length of 10.0 cm at 20°C and a length of 10.015 cm at the boiling point of water (1000C). (a) What
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!