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
djverab [1.8K]
4 years ago
8

In scientific notation 8700 is written

Physics
2 answers:
Alex73 [517]4 years ago
8 0

Answer:

8.7 x 10^3 is the correct answer.

Nookie1986 [14]4 years ago
6 0

Answer:

8.7 x 10^3  

I have no explanation, I just know that it is written as this

                     

You might be interested in
Plz help me with this ^^^
gogolik [260]
Assuming all the landmasses continue to move towards a sort of epicenter, large mountain ranges would appear in Africa and Europe.
6 0
4 years ago
Read 2 more answers
If a car has a velocity of 85 km/hr, how long will it take to accelerate to 45 km/hr if the acceleration is -3 km/hr/sec?
weqwewe [10]

Answer:

Time, t = 13.34 seconds.

Explanation:

Given the following data;

Initial velocity, u = 85km/hr to meters per seconds = 85*1000/3600 = 23.61 m/s

Final velocity, v = 45km/hr to meters per seconds = 45*1000/3600 = 12.5 m/s

Acceleration, a = -3 km/hr/sec to meters per seconds square = -3*1000/3600 = -0.833m/s²

To find the time;

Acceleration = (v - u)/t

-0.833 = (12.5 - 23.61)/t

-0.833t = -11.11

t = 11.11/0.833

Time, t = 13.34 seconds.

6 0
3 years ago
If the maximum length is 0.3 meters from the equillibrium point what is the and the spring oscillates 100 per minute what is it'
kaheart [24]
20.......................................
5 0
4 years ago
A pilot heads his jet due east. The jet has a speed of 475 mi/h relative to the air. The wind is blowing due north with a speed
oksian1 [2.3K]

Explanation:

a. The velocity of the wind as a vector in component form will be represented as v vector:

    v=30j

b.The velocity of the jet relative to the air as a vector in component form will be represented as u vector

    u=475i

c. The true velocity of the jet as a vector will be represented as w:

  w=u+v

  w=475i+30j

d.  The true speed of the jet will be calculated as:

    IwI=\sqrt{(475)^2+(30)^2}

    IwI=\sqrt{225625+900}

    IwI=\sqrt{226525}

    IwI=476 mi/h

e. The direction of the jet will be:

tita=tan^{-1}\frac{30}{475}

tita=tan^{-1}(0.0632)

tita=3.62degrees,or,N86.38degreesS

7 0
3 years ago
A typical laboratory centrifuge rotates at 4000 rpm. Testtubes have to be placed into a centrifuge very carefully because ofthe
Bogdan [553]

Answer:

A)  a_c = 1.75 10⁴ m / s², B) a = 4.43 10³ m / s²

Explanation:

Part A) The relation of the test tube is centripetal

               a_c = v² / r

the angular and linear variables are related

              v = w r

we substitute

               a_c = w² r

let's reduce the magnitudes to the SI system

              w = 4000 rpm (2pi rad / 1 rev) (1 min / 60s) = 418.88 rad / s

               r = 1 cm (1 m / 100 cm) = 0.10 m

let's calculate

              a_c = 418.88² 0.1

               a_c = 1.75 10⁴ m / s²

part B) for this part let's use kinematics relations, let's start looking for the velocity just when we hit the floor

as part of rest the initial velocity is zero and on the floor the height is zero

                v² = v₀² - 2g (y- y₀)

                v² = 0 - 2 9.8 (0 + 1)

                v =√19.6

                v = -4.427 m / s

now let's look for the applied steel to stop the test tube

                v_f = v + a t

                0 = v + at

                a = -v / t

                a = 4.427 / 0.001

                a = 4.43 10³ m / s²

4 0
3 years ago
Other questions:
  • While running, a person dissipates about 0.60 j of mechanical energy per step per kilogram of body mass. if a 51-kg person devel
    7·2 answers
  • Which of the following statements is an accurate description of sound transmission through various mediums?
    10·2 answers
  • Two trains on parallel tracks are traveling in the same direction. One train starts 10 km behind the other. It overtakes the fir
    7·1 answer
  • What is the output voltage from a step up transformer with 25 turns in the primary coil and 75 turns in the secondary coil if th
    13·1 answer
  • A horizontal force of 50 N is required to push a wagon across a sidewalk at a constant speed.
    13·1 answer
  • A stationary police car emits a sound of frequency of 1240 HZ that bounces off a car on the highway and returns with a frequency
    9·1 answer
  • Ocean waves are hitting a beach at a rate of 3.2 Hz. What is the period of the waves? (2 decimal places)
    12·1 answer
  • PLEASE HELP!! What is one health benefit of walking 10K steps a day?
    11·1 answer
  • A jet is traveling at 458 m/s when a parcel is dropped from the jet. If the jet is 8000 m high how far forward horizontally from
    12·1 answer
  • What conclusions can you make if a hockey goalie fails to block pucks shot in the upper right hand corner of the net
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!