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
weeeeeb [17]
3 years ago
7

You need to repair a broken fence in your yard. The hole in your fence is

Physics
1 answer:
Nadusha1986 [10]3 years ago
3 0

Answer:

 cost = $ 243.00

Explanation:

This exercise must assume that it uses a complete table for each piece, we can use a direct ratio of proportions, if 1 table is 0.20 m wide, how many tables will be 3.00 m

                 #_tables = 3 m (1 / 0.20 m)

                #_tables = 15 tables

Let's use another direct ratio, or rule of three, for cost. If a board costs $ 16.20, how much do 15 boards cost?

              Cost = 15 (16.20 / 1)

              cost = $ 243.00

You might be interested in
One of the 64.3-cm-long strings of an ordinary guitar is tuned to produce the note LaTeX: B_3B 3 (frequency 245 Hz) when vibrati
Phoenix [80]

Answer:

v = 315 m/s

Explanation:

given,

length of the string = 64.3 cm

frequency at fundamental mode = 245 Hz

speed of sound = 345 m/s

speed of the transverse waves = ?

here

wavelength = twice length of string

λ = 2 L

λ = 2 × 64.3

λ = 128.6 cm = 1.286 m

using formula

v = ν λ

v = 245 × 1.286

v = 315.07 m/s

Hence, the speed of the transverse wave on the string will be equal to v = 315 m/s

8 0
3 years ago
A doubly ionized molecule (i.e., a molecule lacking two electrons) moving in a magnetic field experiences a magnetic force of 5.
Kobotan [32]

Explanation:

The given data is as follows.

           F = 5.75 \times 10^{-16} N

          q = 1.6 \times 10^{-19} C

          v = 385 m/s

       sin (63.9^{o}) = 0.876

Now, we will calculate the magnitude of magnetic field as follows.

              B = \frac{F}{qv sin (\theta)}

                  = \frac{5.75 \times 10^{-16} N}{1.6 \times 10^{-19} C \times 385 m/s \times 0.876}

                  = 0.01065 \times 10^{3} T

                  = 10.65 T

Thus, we can conclude that magnitude of the magnetic field is 10.65 T.

4 0
3 years ago
Which of the following best describes a noncontact force
Sonja [21]

Answer:

a force that is able to act at a distance

Explanation:

:)

7 0
3 years ago
A 80 ohms resistor, 0.2 H inductance and 0.1 mF capacitor are connected in series across a generator (60 Hz, V rms=120 V). Deter
qaws [65]

Answer:

Impedance = 93.75 ohms

Current = 1.81 A

Explanation:

Resistance = R = 80 ohms

Inductance = L = 0.2 H

Inductive reactance = XL = X_{L}= = ωL = (2πf) L

= 2 (3.14) (60)(0.2) = 75.398 Ohms

Capacitive reactance = 1 / ωC = 1/(2πf)C = 1 / [(2π)(60)(0.1 × 10⁻3)]

= 26.526 Ohms  

Impedance = Z = \sqrt{R^{2} + (X_{L} - X_{C})^{^{2}}} =

= \sqrt{8788.511} = 93.747 ohms  

Voltage = \sqrt{2} × 120 = 169.7056 V

Current = I = V ÷ R = (169.7056) ÷ 93,747 = 1.81 A

8 0
3 years ago
Newton’s first law describes the tendency calles
beks73 [17]
The first law is about force or push and pull
5 0
3 years ago
Read 2 more answers
Other questions:
  • Explain the versatility of epithelial tissue
    6·2 answers
  • Suppose you are at the center of a large freely-rotating horizontal turntable in a carnival funhouse. As you crawl toward the ed
    13·1 answer
  • All of the following are stages of change EXCEPT
    13·1 answer
  • An object with a mass of 21 kilograms is lifted through a distance of 7 meters how much work is done
    15·1 answer
  • Que es el periodo de un pendulo
    5·2 answers
  • How much work is it to lift a 20. kg sack of potatoes vertically 6.5 m?
    12·1 answer
  • If you are going to see which food dye diffuses fastest in water. Which variables do you measure How will you do this?
    15·1 answer
  • A copper calorimeter of mass 120g contains 70g of water and 10g of ice at 0°C. What mass of steam at 100°C must be passed into t
    14·1 answer
  • Jus de fruits frais
    8·1 answer
  • During an experiment, your teacher gives you two objects: tissue paper and a balloon. You observe that the tissue paper repels t
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!