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
bearhunter [10]
3 years ago
10

Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the

left with a force of 12N
What is the net force acting on the box?


What direction the box will move


If the mass of the box is 4kg, what is the acceleration of the box?
Physics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0

-- The net force on the box is 2N to the left.

-- The box will move to the left and accelerate to the left.

-- F=ma . a=F/m . a=(2N)/(4kg).

a = 0.5 m/s^2 to the left.

You might be interested in
An elevator cab has a mass of 4710 kg and can carry a maximum load of 1910 kg. If the cab is moving upward at full load at 3.80
OLEGan [10]

Answer:

Power P=246.78 KW

Explanation:

Mass of Elevator=4710 Kg

Can carry load =1910 Kg

Total Mass m to be lifted =4710 kg + 1910 Kg =6620 kg

speed = 3.80 m/s ⇒ per second distance traveled (height h) = 3.80 m  and    time t = 1 s

Using formula of Power P = \frac{work}{time}

P = \frac{mgh}{t}

P= 6620kg × 9.81 m/s² × 3.80 m / 1s

P= 246780.36 W

P=246.78 KW

4 0
3 years ago
An air compressor and takes atmospheric Air at 14.7 PSI and increases its pressure to 150 psi ( Gauge). the pressurized air is s
Yuliya22 [10]

Answer:

The absolute pressure of air inside the tank is 164.7 psi.

Explanation:

Given that,

Atmospheric pressure = 14.7 Psi

Gauge pressure = 150 psi

We need to calculate the absolute pressure of air inside the tank

Using formula of absolute pressure

P_{ab}=P_{g}+P_{atm}

Where, P_{g} = gauge pressure

P_{atm} =atmospheric pressure

Put the value into the formula

P_{ab}=150+14.7

P_{ab}=164.7\ psi

Hence, The absolute pressure of air inside the tank is 164.7 psi.

3 0
3 years ago
Find the noise level of a sound having an intensity of 1.5x10^-14W/m^2 given I0=10^12 W/m2
Llana [10]

Answer:

Noise level will be -18.2 watt

So option (b) will be correct answer

Explanation:

We have given sound intensity I=1.5\times 10^{-14}w/m^2

And threshold intensity I_0=\times 10^{-12}w/m^2 ( in question it is given as 10^{12}w/m^2 but its standard value is 10^{-12}w/m^2 )

Now noise level  =10log\frac{I}{I_0}=10log\frac{1.5\times 10^{-14}}{10^{-12}}=10log0.015-18.23

So the noise level will be -18.2

So option (b) will be correct answer

5 0
3 years ago
You do 200 joules of work against gravity when lifting your backpack up a flight of stairs that is 4 meters tall. What is the we
kotegsom [21]

Answer:

Correct answer:  F = 50 N  weight of backpack

Explanation:

Given:

W = 200 J    work against gravity

h = 4 m  

F = m g = ?

g = 10 m/s²

The work done is a measure of change in this case of potential energy

W = Δ Ep = m g h = F · h ⇒ F = W / h =

F = W / h = 200 / 4 = 50 N

F = 50 N

God is with you!!!

8 0
4 years ago
Which characeristic makes omasis different from diffusion.
Ksju [112]
 <span>haha I used to think biology was so hard, i find it quite easy now. 
Okay, so basically Osmosis is the movement of water molecules from a higher concentration to a lower concentration. Diffusion is generally the movement of a gradient from higher concentration to an area of lower concentration. Osmosis applies to water only, whereas diffusion, you have many types such as Passive transport [ movement of molecules from high- low, NO CELLULAR ENERGY needed! ] then you have faciliated diffusion ( basically uses a channel protein to allow big substances to go through the membrane : NO ENERGY needed] 
OSMOSIS, the important thing to remember is that water ALWAYS flow towards the region with the higher concentration of the solute (ex: Salt is solute, water is solvent) solute is the thing that is being dissolved. Solvent is the one doing the dissolving. Hope this helped!</span>
5 0
4 years ago
Other questions:
  • How many common phases of matter are there? A. Four B. Eight C. Five D. Three
    5·1 answer
  • How often the particles vibrate about their fix position"
    15·1 answer
  • how much work must be done to accelerate an 8.5×10^5 kg train from a) 10m/s to 15m/s b) 15m/s to 20m/s and c) to an Initial stop
    12·1 answer
  • Weight and mass are interchangeable terms. True or False
    7·2 answers
  • A 100-m long transmission cable is suspended between two towers. If the mass density is 2.01 kg/m and the tension in the cable i
    13·1 answer
  • How is amplitude and frequency connected?
    11·2 answers
  • Because the block is not moving, the sum of the x components of the forces acting on the block must be zero. Find an expression
    12·1 answer
  • I WILL GIVE BRAINLIST just please help with these problems 3
    7·1 answer
  • Scenario:
    11·1 answer
  • Help please <br> whats an example of kinetic energy
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!