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
RUDIKE [14]
3 years ago
13

Need help with 2 and 3pls help, due in 1 1/2 hours(GIVING 20 POINTS)​

Physics
1 answer:
Anarel [89]3 years ago
7 0
2) acceleration = final velocity - initial velocity / time —> V-U/T
Acceleration is the change in velocity over the change in time so it can be represented by the equation a = Δv/Δt.
3) first one- F=10.5 N
second one- 4 m/s^2
third one- 1200N
You might be interested in
How will unbalanced forces affect the speed and direction of an object
azamat

Answer:

Explanation:

Unbalanced forces will result in the presence of acceleration. The formula

F net = ma

says that if there is a net force present and the object in question has a mass, then an acceleration is present. Now acceleration is constant in this situation because nowhere does it say the acceleration is changing. If acceleration is constant then the velocity is increasing at a steady pace (think linear function!).

The direction of the object depends on the direction that the net force is in. If the net force is to the left, then that object will accelerate to the left.

Hope this helps :)

3 0
3 years ago
Which planets are closets to the sun?
damaskus [11]

The plant that is closest to the sun is murcury. Then it is venus, then earth, and then mars. Then it is jupiter, then saturn, then uranus, then neptune.

5 0
3 years ago
Read 2 more answers
Explain why, under some circumstances, it is not advisable to weld a structure that is fabricated with a 3003 aluminum alloy. Hi
Scorpion4ik [409]

The 3003 aluminum alloy is made up of 1.25% Magnesium and 0.1% Copper. This combination is designed to increase the strength of the material over other types of alloys such as those of the 1000 series. This alloy provides a medium strength and can be educated by cold work.

The alloy is not heat treatable and generally has good formability, corrosion resistance and weldability.

However, being a material that hardens by cold work, welding a 3003 Aluminum structure will cause the body to undergo recrystallization which will generate a loss in the 'resistance' of the material and the force capable of withstanding. If this aluminum will be used for structural purposes, it should not be welded. It would be better to perform the structure with a 6061 aluminum, which has similar characteristics and is not so affected by welding.

7 0
3 years ago
it takes 560s for a runner to complete one circular lap, moving at a speed of 6.00 m/s. what is the radius of a track?
Lostsunrise [7]

Answer:

534.8 meters

Explanation:

Use T=(2*pi*r)/v

560=(2*pi*r)/6

3360=2*pi*r

1680=pi*r

534.8 meters=radius

4 0
3 years ago
Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. The re
pickupchik [31]
Picture ? I need a visual reference
7 0
3 years ago
Read 2 more answers
Other questions:
  • A student does 25 J of work on the handle of a pencil sharpener. If the pencil sharpener does 20 J of work on the pencil, what i
    13·1 answer
  • You are working in a biology lab and learning to use a new ultracentrifuge for blood tests. The specifications for the centrifug
    11·2 answers
  • Unpolarized light passes through three polarizing filters. The first one is oriented with a horizontal transmission axis, the se
    5·1 answer
  • The level of closeness between a measured quantity and the actual or standard value is called what?
    6·2 answers
  • A coil has an inductance of 5 H and a resistance of 20 Ω. If a DC voltage of 100 V is applied to the coil, find the energy store
    10·1 answer
  • A planet moves in a circular orbit of radius 4.5x10^15 m with a period of 4
    11·1 answer
  • The position of a particle is given by ~r(t) = (3.0 t2 ˆi + 5.0 ˆj j 6.0 t kˆ) m
    8·1 answer
  • Una gota de lluvia (m = 3.54 x 10-5 Kg.) cae verticalmente a velocidad constante bajo la influencia de la gravedad y la resisten
    11·1 answer
  • You have a working electrical parallel circuit with three light bulbs, then 1 bulb burns
    15·1 answer
  • Do electromagnetic waves require matter to travel?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!