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
Some neodymium glass lasers can provide 100TW of power in 1.0 ns pulses at a wavelength of 0.26 micrometers. how much energy is
Aleksandr-060686 [28]

Answer:

 E = 10⁵ J

Explanation:

given,

Power, P = 100 TW

           = 100 x 10¹² W

time, t = 1 ns

           = 1 x 10⁻⁹ s

The energy of a single pulse is:-

Energy = Power x time

 E = P t

 E = 100 x 10¹² x 1 x 10⁻⁹

 E = 10⁵ J

The energy contained in a single pulse is equal to 10⁵ J

7 0
3 years ago
200 pages about string thirory
joja [24]

Answer:

do not know the answer

Explanation:

7 0
3 years ago
Read 2 more answers
What is the speed of a truck traveling 10km in 10 minutes
user100 [1]

Answer: 58.8235 km/h

speed = distance/time

the distance is 10 km

the time is 10 minutes

the unit is not correct, so we first change minute to hour

so 10/60 is 0.166667, rounded to 0.17.

10 km/ 0.17 hours =

8 0
1 year ago
When you close a switch in an electric circuit you are stopping the flow of electrons
jekas [21]
True because all switches use contacts to start or stop the flow of electrons in a circuit
3 0
3 years ago
Read 2 more answers
A fire hose held near the ground shoots water at a speed of 6.5 m/s. At what angle(s) should the nozzle point in order that the
valina [46]
The speed of water can be split into vertical and horizontal speed components:
v_x = 6.5 cos \theta \\ v_y = 6.5 sin \theta

Due to the force of gravity, the y component will be parabolic. The x component will be linear:
y(t) = -4.9t^2 + (6.5sin \theta) t \\  \\ x(t) = (6.5 cos \theta) t
To find when the water hits the ground 2.5m away, set y= 0 and x = 2.5
-4.9t^2 + (6.5sin \theta) t=0 \\  \\ t = \frac{6.5}{4.9} sin \theta \\ \\(6.5 cos \theta)(\frac{6.5}{4.9} sin \theta) = 2.5 \\  \\ sin \theta cos \theta = 0.29 \\  \\ sin 2\theta = 0.58 \\  \\ 2\theta = 35.4, 144.6 \\  \\ \theta = 17.7,72.3
8 0
3 years ago
Other questions:
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    11·2 answers
  • Monochromatic light is incident on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen at
    8·1 answer
  • What’s the difference between the speed and velocity of an object?
    8·1 answer
  • A toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship
    5·1 answer
  • Longitudinal waves transfer energy ___________ to the direction of the wave motion.
    11·2 answers
  • To work on your car at night, you use an extension cord to connect your work light to a power outlet near the door. How would th
    5·1 answer
  • A car has 400 kgm/s worth of momentum and runs into a truck initially at rest. What is the initial momentum of the truck?
    7·1 answer
  • Coach Hogue is riding his motorcycle in a circle on wet pavement. Suddenly the bike slides out from under him. What failed to pr
    12·1 answer
  • What was Galileo’s contribution to the study of motion?
    7·1 answer
  • One of the characteristic of sound enogy Similar<br>to light energy is?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!