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
neonofarm [45]
3 years ago
10

A 2.0-kg mass (mA) and a 4.0-kg mass (mB) are connected to a lightweight cord that passes over a frictionless pulley. The pulley

only changes the direction of the force exerted by the rope. The hanging masses are free to move. Choose coordinate systems for the two masses with the positive direction up for mA and down for mB.
(a) Create a pictorial model.
(b) Create a physical model with motion and free-body diagrams. (Do parts a and b on paper. Your instructor may ask you to turn in this work.) This answer has not been graded yet.
(c) What is the acceleration of the smaller mass.
Physics
1 answer:
Flura [38]3 years ago
7 0

Answer:

i dont have such a type of keyboard so, i can't solve it sorry

You might be interested in
A car cruises at a constant rate of 50 miles per hour. How much time will it take to go 600 miles?
Len [333]
Speed is constant. 50 miles = 1 hour. 600/50 = 12. 1hr(12) = 12 hours.
7 0
3 years ago
Maximum current problem. If the current on your power supply exceeds 500 mA it can damage the supply. Suppose the supply is set
VikaD [51]

To solve this problem we will apply Ohm's law. The law establishes that the potential difference V that we apply between the ends of a given conductor is proportional to the intensity of the current I flowing through the said conductor. Ohm completed the law by introducing the notion of electrical resistance R. Mathematically it can be described as

V = IR \rightarrow R = \frac{V}{I}

Our values are

I = 500mA = 0.5A

V = 37V

Replacing,

R = \frac{V}{I}

R = \frac{37}{0.5}

R = 74 \Omega

Therefore the smallest resistance you can measure is 74 \Omega

8 0
3 years ago
two point charges of 3.4 μc and 6.6 μc are 0.20 m apart. what is the electrical potential energy of the system?
Daniel [21]

Explanation:

electrical potential = (6.6-3.4)/0.20

= 16 uc/m

8 0
3 years ago
A 15-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure insi
Nikolay [14]

Explanation:

Equation for energy balance will be as follows.

         \Delta E_{system} = E_{in} - E_{out}

        \Delta U = W_{in} - Q_{out}

Hence,    W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Therefore, we will calculate the final temperature as follows.

            \frac{P_{1}V}{T_{1}} = \frac{P_{2}V}{T_{2}}

       T_{2} = \frac{20 psia}{14.7}(638 R)

                   = 868.03 R

Now, we will calculate the mass as follows.

             m = \frac{P_{1}V}{RT_{1}}

                 = \frac{14.7 psia \times 15 ft^{3}}{0.3353 psi ft^{3}/lbm R \times 638 R}

                 = 1.031 lbm

Hence,

        W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Putting the values into the above equation as follows.

            W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

    W_{in} = 20 Btu + 1.031 lbm (\frac{0.160 Btu}{lbm R})(735 - 540)R

            W_{in} = 655.2 Btu

Thus, we can conclude that work done by paddle wheel is 655.2 Btu.

6 0
3 years ago
What is the direction of the sum of these two vectors? ​
gayaneshka [121]

Answer:

what is the direction of the sum of these two vectors?

7 0
3 years ago
Read 2 more answers
Other questions:
  • What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
    9·2 answers
  • Calculate the broadcast wavelength of the radio station 99.90 fm. seconds
    9·1 answer
  • A scooter traveling at 4 m/s rides 800 meters. For what duration of time has the scooter been traveling?
    10·2 answers
  • Jake's toy car is sitting on a smooth, flat surface. This wheel and axle simple machine will remain in the same place because th
    8·1 answer
  • Usually, when the temperture is increased l, what will happen to the ratevof dissolving?
    14·1 answer
  • You are given three pieces of wire that have different shapes (dimensions). You connect each piece of wire separately to a batte
    9·1 answer
  • True or false in order for light to be emitted electrons must move from high energy state to a lower energy state?
    9·2 answers
  • The duration between the emission of the sound from the echo reception is: t - 1.5 s. the distance between the observer and the
    6·2 answers
  • When the net force on an object is zero, what do we know about the motion of that object
    9·1 answer
  • raju is standing at a distance of 1.5 m from a plane mirror find the distance between raju and his image between raju and his im
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!