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
Fynjy0 [20]
3 years ago
10

Need help now due in 2 minutes

Physics
1 answer:
andrey2020 [161]3 years ago
4 0

Answer:

20 N to the left

Explanation:

For the first question, add the two forces as they are acting in the same direction.

So, 8 + 12 = 20 N to the left

You might be interested in
Given the resistivities below, which material is best described as an insulator?
koban [17]

Answer: D) 3.2 × 10^8

Explanation: Insulators are best described as materials which are poor conductors of electricity and hence do not allow passage of electricity through them. Resistivity are hence used to describe property or characteristic of a material which does not allow the flow or passage of electric current.

In summary, materials which high resistivity values are referred to as Insulators. Conversely, those with low resistivity or high conductivity values are called conductors while those with intermediate values are named semiconductors.

In the question given above, the material with a resistivity value of 3.2 × 10^8 - - - has a very high resistivity value (320000000Ω), the other options given have very low resistivity values ; 0.0000000017, etc and are most likely to be conductors due to their excessively low resistivity values.

5 0
3 years ago
Un resorte se alarga 5 cm bajo la acción de una fuerza de 39,2 N. ¿Cuál es la constante del resorte? Si ahora la fuerza es 68,6
Lorico [155]

Answer:

k=784 N/m

\Delta x=8,8 cm

Explanation:

Usando la ley de Hook tenemos:

F=k\Delta x

Solving it for k we have:

k=\frac{F}{\Delta x}

k=\frac{39,2}{0,05}

k=784 N/m

Usando la misma ecuación y sabiendo k tenemos:

\Delta x=\frac{F}{k}

\Delta x=\frac{68,6}{784}

\Delta x=8,8 cm

Espero esto te ayude!

6 0
3 years ago
Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x2, y =
Simora [160]

The correct answer for  the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x2, y = 4x is 128/3 * π.

Volume of Solid of Revolution by Shell method is given by

V = 2π * integrate x(height) dx Here, height = 4x-x2

(1)& x-varies from x = 0 to x = 4 then from eqn(1)  V = 2π * integrate x(4x - x ^ 2) dx from x = 0 to 4 = 2π * integrate (4x ^ 2 - x ^ 3) dx from x = 0 to 4

Basic Rule(1) ∫ x^n dx =x^ n+1/ n+1

V=2 π [4((x ^ 3)/3) - (x ^ 4)/4] 0 ^ 4 =2 π[ 4/3 x^ 3 - x^ 4/4 ] 0 ^ 4

V = 2π [4/3 * 4 ^ 3 - (4 ^ 4)/4} - 0]

V = 128/3 * π.

Learn more about area under curve here :-

brainly.com/question/15122151

#SPJ4

4 0
2 years ago
. A 2.0-m wire carries a current of 15 A directed along the positive x axis in a region where the magnetic field is uniform and
Lady bird [3.3K]

Answer:

The resulting magnetic force on the wire is -1.2kN

Explanation:

The magnetic force on a current carrying wire of length 'L' with current 'I' in a magnetic field B is

F = I (L*B)

Finding (L * B) , where L = (2, 0, 0)m , B = (30, -40, 0)

L x B = \left[\begin{array}{ccc}i&j&k\\2&0&0\\30&-40&0\end{array}\right] = (0, 0, -80)

we can now solve

F = I (L x B) = I (-80)

F = -1200 kmN

F = -1200 kN * 10⁻³

F = -1.2kN

6 0
3 years ago
Recall the thermal energy model you used earlier to simulate friction with the chemistry and physics books. How does heat travel
dsp73

Answer:

due to condection of heat from pan in thermal energy according to 9th

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • In an inertia balance, a body supported against gravity executes simple harmonic oscillations in a horizontal plane under the ac
    13·1 answer
  • The dimensions of wellness do not influence each other. T or F
    7·2 answers
  • What physics concept underlies these three observations? When passing an oncoming truck on the highway, your car tends to sway t
    6·1 answer
  • Nikola Tesla and Thomas Edison were both pioneers when it came providing electricity to the people. Edison had hired the genius
    8·1 answer
  • The absolute magnitude of a star is the amount of light received by Earth. true or false
    14·2 answers
  • Radio waves coming from a radio station are tuned into by a student in class. What form of energy transfer does the radio statio
    15·1 answer
  • What 2 factors determine the amount of gravitational force an object experiences
    14·1 answer
  • What are the products of the light reactions that are subsequently used by the calvin cycle?
    15·1 answer
  • 1. Transverse waves _____.
    7·2 answers
  • I need help with science​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!