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
Jet001 [13]
4 years ago
14

A block with mass m = 4.5 kg is attached to two springs with spring constants kleft = 36 N/m and kright = 50 N/m. The block is p

ulled a distance x = 0.25 m to the left of its equilibrium position and released from rest. 1)What is the magnitude of the net force on the block (the moment it is released)?
Physics
1 answer:
DaniilM [7]4 years ago
6 0

Answer:

21.5 N

Explanation:

As the block is pulled to a distance of 0.25 m to the left of its equilibrium position, the left spring is compressed by x = 0.25 m and exerting an elastic force to the right, the right spring is stretched by x =0.25 m and also exerting an elastic force to the right. Knowing their spring constant, we can calculate the total net force at that instant

F = F_{left} + F_{right}

F = k_{left}x + k_{right}x

F = x(k_{left} + k_{right}) = 0.25(36 + 50) = 0.25*86 = 21.5 N

You might be interested in
I have a voltage source of 12V but a light that only burns at 5V. The lamp works on 18 mA. Calculate the resistance that you EXT
ratelena [41]

Answer:

The resistance that will provide this potential drop is 388.89 ohms.

Explanation:

Given;

Voltage source, E = 12 V

Voltage rating of the lamp, V = 5 V

Current through the lamp, I = 18 mA

Extra voltage or potential drop, IR =  E- V  

                                                    IR = 12 V - 5 V = 7 V

The resistance that will provide this potential drop (7 V) is calculated as follows:

IR = V

R = \frac{V}{I} = \frac{7 \ V}{18 \times 10^{-3} A} \ = 388.89 \ ohms

Therefore, the resistance that will provide this potential drop is 388.89 ohms.

7 0
3 years ago
Cells a and f shows an early and late stage of the same phase of mitosis . what phase is it?
Lerok [7]
Fun fhjzsh going chichi. Gok
3 0
4 years ago
Vapor pressure is related to the temperature of the liquid. user: in an open system, the vapor pressure is equal to the _____. i
iVinArrow [24]

Answer

-Directly;  outside air pressure

Vapor pressure is directly related to the temperature of the liquid. user: in an open system, the vapor pressure is equal to the outside air pressure.

Explanation;

-As the temperature of a system increases, the average kinetic energy of the molecules increases in both the liquid and gas phases.

-A higher average kinetic energy facilitates the escape of molecules from the liquid phase into the gas phase. At the same time, the rate of return of gas phase molecules to the liquid also increases. A new equilibrium point is reached at a higher gaseous vapor pressure. The increase in vapor pressure with temperature is exponential.


6 0
3 years ago
Read 2 more answers
The elements in a column of the periodic table _____.
Shtirlitz [24]
C. have similar properties
(this is because they have the same number of electrons in the outer orbital)
7 0
3 years ago
If the change in velocity increases, what happens to the acceleration during the same time period?
4vir4ik [10]
When the velocity is increasing the acceleration increases too
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is an example of matter?
    14·2 answers
  • The New York Wheel is the world's largest Ferris wheel. It's 183 meters in diameter and rotates once every 37.3 min.
    6·1 answer
  • How is the pressure exerted and the area on which it is exerted are related to each other?
    6·1 answer
  • Question 1
    7·1 answer
  • Define the unit of current​
    10·1 answer
  • Most high mountain ranges are composed of
    14·1 answer
  • Easy yes or no question! <br><br> Do phytoplankton turn carbon dioxide to oxygen?
    5·2 answers
  • 4
    11·1 answer
  • You are in a boat that is 1400 kg. The current is 1500N and is pushing you back. If you have an acceleration of 3 m/s^2 what is
    11·1 answer
  • Physics - Electricity and Magnetism
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!