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
Svetlanka [38]
3 years ago
5

The acceleration of an object is proportional to which of the following

Physics
1 answer:
Lana71 [14]3 years ago
7 0

the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

You might be interested in
A 5 cm length of wire carries a current of 3 A in the positive z direction. The force on this wire due to a magnetic field vecto
ioda

Answer:

B = 4/3 ( i + j + k )

Explanation:

I = 3 k

L = 5 x 10⁻² m

F = - 0.2 i + 0.2 j

Let magnetic field be B

B = B₁ i + B₂ j + B₃ k

F = L ( I x B )

= 5 x 10⁻² 3 k x ( B₁ i + B₂ j + B₃ k )

=   15 x 10⁻² B₁ j  -   15 x 10⁻² B₂ i

Given

F = - 0.2 i + 0.2 j

equating equal terms

15 x 10⁻² B₂ = .2

15 x 10⁻² B₁ =  .2

B₁ = .02 / 15 x 10⁻² = 20 / 15 N

B₂ = .02 / 15 x 10⁻² = 20 / 15 N

Now wire is rotated so that current flows in positive x direction

I = 3 i

F = . 2 k

F = L ( I x B )

= 5 x 10⁻² x 3 i  x ( B₁ i + B₂ j + B₃ k )

= 15 x 10⁻² B₃ k

15 x 10⁻² B₃ = .2

B₃ = .2 /15 x 10⁻²

B₃ = 20 /15

B = B₁ i + B₂ j + B₃ k

20 /15 9 ( i + j + k )

B = 4/3 ( i + j + k )

6 0
3 years ago
What are the component parts of modern fireworks? What does each part do?
EleoNora [17]

Answer: Aluminum, Antimony, Barium, Calcium, Carbon, Chlorine, Copper, Iron, Lithium, Magnesium, Oxygen, Zinc, Titanium, Strontium, Sulfur, Sodium, Potassium, Phosphorus

Explanation:

Aluminum: Aluminum is a common component of sparklers.  It is used to produce silver and white flames and sparks.

Antimony: Antimony is used to create firework glitter effects.

Barium: Barium is used to create green colors in fireworks, and it can also help stabilize other volatile elements.

Calcium: Calcium is used to deepen firework colors. Calcium salts produce orange shades in the fireworks.

Carbon: Carbon is an important components of black powder, which is used as a propellant in fireworks. Carbon provides the fuel for a firework. Common forms include carbon black, sugar, or starch.

Chlorine: Chlorine is an important component of many oxidizers in fireworks. Several of the metal salts that produce colors contain chlorine.

Copper: Copper compounds produce blue shades in fireworks.

Iron: Iron is used to produce sparks. The heat of the metal determines the color of the sparks in this case.

Lithium: Lithium is a metal that is used to impart a red color to fireworks. Lithium carbonate, in particular, is a common colorant.

Magnesium: Magnesium burns a very bright white, so it is used to add white sparks or improve the overall brilliance of a firework.

Oxygen: Fireworks include oxidizers, which are substances that produce oxygen in order to support. The oxidizers are usually nitrates, chlorates, or perchlorates. Sometimes the same substance is used to provide oxygen and color.

Phosphorus: Phosphorus burns spontaneously in air and is also responsible for some glow-in-the-dark effects. It may be a component of a firework's fuel.

Potassium: Potassium helps to oxidize firework mixtures. Potassium nitrate, potassium chlorate, and potassium perchlorate are all important oxidizers.

Sodium: Sodium produces a gold or yellow color in fireworks, however, the color may be so bright that it masks less intense colors.

Sulfur: Sulfur is a component of black powder. It is found in the firework's propellant/fuel.

Strontium: Strontium salts give a red color to fireworks. Strontium compounds are also important for stabilizing fireworks mixtures.

Titanium: Titanium metal can be burnt as powder or flakes to produce silver sparks.

Zinc: Zinc is used to create smoke effects in fireworks and other pyrotechnic devices.

5 0
4 years ago
An object accelerates from rest, with a constant acceleration of 6.4 m/s2, what will its velocity be after 7s?
Neko [114]

Hi there!

The formula for velocity given acceleration:

v = at

Plug in given values:

v = 6.4(7) = 44.8 m/s

8 0
3 years ago
Why concave lens is called diverging lens​
dangina [55]

When a parallel beam of light passes through a convex lens, the rays become farther from one another when the come out. This process of rays is called ''to diverge''. The concave lens makes rays of light diverge, so it is called diverging lens.

6 0
3 years ago
Please answer quickly I would greatly appreciate it
Nataly [62]

Answer:

1. <u>outer planets</u>

<u>2. Gas giants</u>

<u>3. helium</u>

<u>4.Galileo Galilei</u>

<u>5. Saturn</u>

<u>6. Pluto</u>

<u>7. Pluto</u>

5 0
4 years ago
Other questions:
  • According to Boyles’ law, PV = constant. If a graph is plotted with the pressure P against the volume V, the graph would be a(n)
    15·2 answers
  • What does FCCLA stand for?
    15·2 answers
  • A teacher pushed a 98 newton desk across a floor for a distance of 5 meter he exerted a horizontal force of 20 newton for four s
    8·1 answer
  • A ray of light is moving from a material having a high indexof refraction into a material with a lower index of refraction.
    5·1 answer
  • While spinning down from 500.0 rpm to rest, a solid uniform flywheel does 5.1 kJ of work. If the radius of the disk is 1.2 m, wh
    8·1 answer
  • If earth increase the distance from the sun, what will happen to the period of orbi t(the time it takes to complete one revoluti
    9·1 answer
  • Why there is tides in sea and ocean
    14·1 answer
  • A one-piece cylinder has a core section protruding from the larger drum and is free to rotate around its central axis. A rope wr
    11·1 answer
  • How do greenhouse gases affect visible and infrared light?
    8·1 answer
  • A train moves 80 km/hr and travels for 3.5 hr. How far did it go?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!