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
velikii [3]
3 years ago
9

Subtract these measurements, using significant digit rules: 43.278 kg - 28.1 g = kg

Physics
2 answers:
DiKsa [7]3 years ago
8 0

28.1 grams is 0.0281 kg.

43.278 kg - 0.0281 kg = 43.2499 or if you round -> 43.250

Orlov [11]3 years ago
7 0

Answer: 43.2

Calculations:

All you need to do is subtract 43.278 kg - 28.1 g (or 0.0281 kg) = 43.2499

Then to round significant figures (digits) you round down, making it 43.2 (that’s rounded to 3 significant figures).

You might be interested in
A doppler effect occurs when a source of sound moves. True or False
Shtirlitz [24]
<h2>Answer: True </h2>

The <u>Doppler effect</u> refers to the change in a wave perceived frequency when the emitter of the waves, and the receiver (or observer in the case of light) move relative to each other.

In other words, it is the variation of the frequency of a wave due to the relative movement of the source of the wave with respect to its receiver.

It should be noted that this effect  bears its name in honor of the Austrian physicist <u>Christian Andreas Doppler</u>, who in 1842 proposed the existence of this effect for the case of light in the stars. Another important aspect is that the effect occurs in all waves (including light and sound). However, it is more noticeable to humans with sound waves.

4 0
2 years ago
A convex lens has a focal length of 16.5 cm. Where on the lens axis should an object be placed in order to get a virtual, enlarg
alexandr402 [8]

Answer:

Object should be placed at a distance, u = 7.8 cm

Given:

focal length of convex lens, F = 16.5 cm

magnification, m = 1.90

Solution:

Magnification of lens, m = -\frac{v}{u}

where

u = object distance

v = image distance

Now,

1.90 = \frac{v}{u}

v = - 1.90u

To calculate the object distance, u by lens maker formula given by:

\frac{1}{F} = \frac{1}{u}+ \frac{1}{v}

\frac{1}{16.5} = \frac{1}{u}+ \frac{1}{- 1.90u}

\frac{1}{16.5} = \frac{1.90 - 1}{1.90u}

\frac{1}{16.5} = \frac{ 0.90}{1.90u}

u = 7.8 cm

Object should be placed at a distance of 7.8 cm on the axis of the lens to get virtual and enlarged image.

6 0
3 years ago
A compass needle acts as a(n)
beks73 [17]

Explanation:

A compass needle acts as a Magnet

6 0
3 years ago
Which wave form oscillates both parallel and perpendicular to the direction of the wave motion? transverse waves, longitudinal w
Solnce55 [7]
Hope this answer helps:)

6 0
2 years ago
What quantity is represented by a unit called a newton (N)?
zavuch27 [327]

\textsf {C. Force}

\textsf {The quantity which is represented by a unit called Newton (N)}\\\textsf {is Force.}

5 0
2 years ago
Other questions:
  • What two sysrems of a rabbit's body must be working together to run away?
    15·1 answer
  • All objects in the universe radiate some form of energy.<br> a. True<br> b. False
    9·2 answers
  • What is answer of question 7
    11·2 answers
  • 1.)Which is the correctly balanced equation?
    6·1 answer
  • If san andreas fault slips 2.5 cm each year how far would it separate in 100 years
    5·1 answer
  • A particle released during the fission of uranium-235 is a(n) ________
    15·1 answer
  • A tire hanging from a tree is at rest. The force of gravity is pulling down on the tire. Another force, called tension, is pulli
    11·2 answers
  • Unlike a mineral, a rock _____.
    12·1 answer
  • A 06-C charge and a 07-C charge are apart at 3 m apart. What force attracts them?​
    5·1 answer
  • What is the first law of thermodynamics?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!