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
julia-pushkina [17]
3 years ago
14

the system shown above is released from rest. if friction is negligible, the acceleration of the 4.0 kg block sliding on the tab

le shown above is most nearly
Physics
1 answer:
JulsSmile [24]3 years ago
5 0

The acceleration of the first block (4 kg) is -9.8 m/s².

The given parameters:

  • <em>Mass of the first block, m₁ = 4.0 kg</em>
  • <em>Mass of the second block, m₂ = 2.0 kg</em>

The net force on the system of the two blocks is calculated as follows;

m_2 g - T = m_1 a

where;

  • <em>T </em><em>is the tension in the connecting string due weight of the first block</em>

m_2 g - m_1 g = m_1 a\\\\a = \frac{m_2 g - m_1g}{m_1} \\\\a = \frac{g(m_2 - m_1)}{m_1} \\\\a = \frac{9.8(2-4)}{2} \\\\a = -9.8 \ m/s^2

Thus, the acceleration of the first block (4 kg) is -9.8 m/s².

Learn more about net force on two connected blocks here: brainly.com/question/13539944

You might be interested in
ANSWER ASAP 13 POINTS
dedylja [7]

Swimming, because during swimming we use more muscles than when we sprint, stretch, etc..

4 0
3 years ago
True or false Digitized information can be used by computers.
zhenek [66]
True! ^-^ It can be used!
8 0
3 years ago
Read 2 more answers
A wire is formed into a circle having a diameter of 11.1 cm and is placed in a uniform magnetic field of 2.79 mT. The wire carri
Ber [7]

Answer:

Maximum torque on the wire is 1.34\times 10^{-4}\ N-m

Explanation:

It is given that,

Diameter of the wire, d = 11.1 cm = 0.111 m

Radius of wire, r = 0.0555 m

Magnetic field, B=2.79\ mT=0.00279\ T

Current, I = 5 A

We need to find the maximum torque on the wire. Torque is given by :

\tau=IAB\ sin\theta

Torque is maximum when, \theta=90

\tau=IAB

\tau=5\times \pi \times (0.0555)^2\times 0.00279

\tau=0.000134\ N-m

or

\tau=1.34\times 10^{-4}\ N-m

So, the maximum toque on the wire is 1.34\times 10^{-4}\ N-m. Hence, this is the required solution.

6 0
3 years ago
If the current in each wire is the same, which wire produces the strongest magnetic field?
lions [1.4K]

Answer: option 4: A wire that is 2-mm thick and coiled.

Explanation:

The current in each wire is same. The magnetic field due to a current carrying wire increases if the wire is coiled with the more number of turns. A thick wire would cause low resistance to the current. Hence, a 2-mm thick wire which is coiled would produce the strongest magnetic field.

3 0
4 years ago
Read 2 more answers
Question If a force of 2N is used to move a box 1 meter, how much work was done to move the box?​
Sunny_sXe [5.5K]

Answer:

I assume that the force of 2N is applied along the direction of motion and was applied for the whole 1 meter, the formula of work is this; Work = force * distance * cosθ where θ is zero degrees. Plugging in the data to the formula;

Explanation:

Work = 2N * 1m * cos 0º.

Work = 2N * 1m * 1

Work = 2Nm

Work = 2 joules

7 0
3 years ago
Other questions:
  • A physical reaction is a process in which one or more reactants change into one or more products with different properties. true
    9·1 answer
  • Which term is used to represent the quantity of matter that an object contains? A. mass B. weight C. volume D. density
    8·2 answers
  • A gas has an initial volume of 212 cm3 at a temperature of 293 K and a pressure of 0.98 atm. What is the final pressure of the g
    14·2 answers
  • Explain the difference between the precision and accuracy of an experiment.
    11·1 answer
  • if jane is trying to escape a dragon and runs 34m north, then 38m east, what is her final displacement?. if the whole trip took
    10·1 answer
  • A sprinter accelerates from rest to 9.00 in 1.38 sec.What is his acceleration in a. m/s2b. m/h2
    12·1 answer
  • A 160.-kilogram space vehicle is traveling along a
    7·1 answer
  • In the diagram of the swimmer, which force is greater, buoyancy or weight, and how do we know?
    7·1 answer
  • Elena earns $10.50 per hour as a server working x hours per week. She also earns $8.50 per hour editing poetry for y hours per w
    10·1 answer
  • If a charged particle is travelling in a helical shape as it moves through a magnetic field, but then the particle gains the opp
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!