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
artcher [175]
3 years ago
6

spring stretches by 21.0 cm when a 135 N object is attached. What is the weight of a fish that would stretch the spring by 43.9

cm?
Physics
1 answer:
fiasKO [112]3 years ago
8 0

Answer:

F2 = 282.28N

Explanation:

F = force

E = extension

  • F1/E1=F2/E2
  • 135/21 = F2/43.9
  • 6.43 = F2/43.9
  • F2 = 6.43 x 43.9
  • F2 = 282.28N
You might be interested in
N2 + O2 → 2NO N-N triple bond: 941 kJ/mol O-O double bond: 495 kJ/mol N-O bond: 201 kJ/mol
kiruha [24]

Answer:

\large \boxed{\text{761 kJ}}

Explanation:

You calculate the energy required to break all the bonds in the reactants.

Then you subtract the energy needed to break all the bonds in the products.

                        N₂  +   O₂   ⟶         2NO

                     N≡N  + O=O ⟶       2O-N=O

Bonds:         2N≡N   1O=O        2N-O + 2N=O

D/kJ·mol⁻¹:     941      495           201      607

\begin{array}{rcl}\Delta H & = & \sum{D_{\text{reactants}}} - \sum{D_{\text{products}}}\\& = & 2 \times 941 +1 \times 495 - (2 \times 201 + 2\times 607)\\&=& 2377 - 1616\\&=&\textbf{761 kJ}\\\end{array}\\\text{The enthalpy of reaction is $\large \boxed{\textbf{761 kJ}}$}.

3 0
3 years ago
A bowling ball rolls 33\,\text m33m33, start text, m, end text with an average speed of 2.5\,\dfrac{\text m}{\text s}2.5 s m ​ 2
asambeis [7]

The ball rolled for 13.2 s

<h3>Further explanation</h3>

Speed is scalar and no direction

\tt avg~speed=\dfrac{total~distance}{elapsed~time}=\dfrac{\Delta x}{\Delta t}

A bowling ball rolls 33 m, with average speed = 2.5 m/s

So elapsed time :

\tt t=\dfrac{33~m}{2.5`m/s}=13.2~s

4 0
3 years ago
What dictates the minimum and maximum pressure allowed for plumbing fixtures?
DENIUS [597]
The answer is: the building codes, which are a set of rules that regulate the conditions that a building must meet. Those requirements are very important to guarantee safety of both the people who are building it and the people who are going to work or live inside of the building in the future
8 0
3 years ago
Read 2 more answers
) is it possible for one component of a vector to be zero, while the vector itself is not zero?
Natalka [10]
The least number of component of a vector quantity is two. These are the x-component and the y-component. 

The resultant vector, or vector as we refer to it in this item, can be calculated through the equation,
              RV = sqrt ((Vx)² + (Vy)²)

From the equation, it can be noted that if we let Vx equal to zero,
              RV = Vy

Similarly, if we let Vy be equal to zero then,
             RV = Vx

Thus, it is still possible for the vector to become nonzero even if one of its components is zero. 
8 0
3 years ago
Plzzz answer this question correctly
tekilochka [14]

Answer:

changing the direction in which a force is exerted

8 0
3 years ago
Other questions:
  • What do wolves do to make hunting easier? /sharpen claws/ /hibernate/ /have distinct call/ /hunt in packs/ ASAP UNIT TEST
    9·2 answers
  • WHY ADIABAT IS STEEPER THAN ISOTHERM???
    6·1 answer
  • A 74-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops through a height of 1.56 m,
    10·1 answer
  • HELP ASAP REAL ANSWERS PLEASE You push a box across the floor with a force of 30 N. You push it 15 meters in 8 seconds. How much
    5·2 answers
  • An object is travelling in a straight line. The diagram is the speed-time graph for
    15·1 answer
  • : To determine the focal length of a lens, the following except _ is needed
    12·1 answer
  • A body of mass 1kg is made to oscillate on a spring of force constant 16 n/m calculate 1 the angular frequency 2 the frequency o
    10·1 answer
  • What 3 dance styles make up musical theatre?
    10·1 answer
  • Một vận động viên ném tạ quay một cái đĩa nặng 1kg với bán
    9·1 answer
  • A weather forecast for a certain day in an area shows two measurements, 18 degrees Celsius and 25 degrees Celsius. What do these
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!