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
klio [65]
3 years ago
12

30 POINTS!

Physics
2 answers:
dexar [7]3 years ago
7 0
I think the answer is D
brilliants [131]3 years ago
5 0

Answer:

d

Explanation:

You might be interested in
A marble block has dimensions of 0.4m x 0.4m x 2m. Knowing that the density of marble is 2,400 kg / m3, calculate the mass of th
Ostrovityanka [42]
So to find the mass we must use the formula D=M/V but because we don’t have the mass, we must use the formula M=DxV

So to find volume, just multiple the length (0.4m) width (0.4m) and height (2m) and you will get 0.32m as the volume. Now multiple this volume with your given density of 2,400 kg/m and you will get 768 kg as the mass of the marble block.

Final answer: 768 kilograms (kg) as mass of the marble block.
4 0
3 years ago
How do simple machines make work easier?
miss Akunina [59]
It is A: They add energy to the work

8 0
3 years ago
Read 2 more answers
How many basic wave forms are there?<br><br> A.) 1<br> B.) 2<br> C.) 3<br> D.) 4
VikaD [51]
I believe the answer is C, 3
4 0
3 years ago
The average standard rectangular building brick has a mass of 3.10 kg and dimensions of 225 m x 112 m x 75 m. The gravitational
zzz [600]

Answer:

P=3.61\times 10^{-3}\ Pa

Explanation:

Given that,

Mass of a brick, m = 3.1 kg

The dimensions of the brick 225 m x 112 m x 75 m

We need to find the maximum pressure created by the brick. We know that, the force acting per unit area is called pressure exerted. It is given by the formula as follows :

P=\dfrac{F}{A}

F = mg

A = area with minimum dimensions i.e. 112 m x 75 m

Pressure is maximum when the area is least.

So,

P=\dfrac{mg}{A}\\\\P=\dfrac{3.1\times 9.8}{112\times 75}\\\\P=3.61\times 10^{-3}\ Pa

So, the maximum pressure created by brick is 3.61\times 10^{-3}\ Pa.

5 0
3 years ago
Geologists use the blank test to determine the hardness of a mineral
Ludmilka [50]
Geologists use the Mohs Harness Scale (aka the Scratch Test) to determine the hardness of a mineral.

For more info, check out http://geology.com/minerals/mohs-hardness-scale.shtml
8 0
3 years ago
Other questions:
  • PLZ!!!!!HURRY WILL BE FRIEND FOREVER!!!
    6·1 answer
  • Elements heavier than hydrogen are formed when light elements undergo nuclear fusion. Fusion takes place within stars at tempera
    11·2 answers
  • A bicyclist travels 60.0 kilometers in 3.5 hours. What's the cyclists average speed?
    14·2 answers
  • A cylindrical rod 21.5 cm long with a mass of 1.20 kg and a radius of 1.50 cm has a ball of diameter of 6.90 cm and a mass of 2.
    15·1 answer
  • Is an object moving in a circle at a constant speed accelerating?
    7·1 answer
  • If the intensity level by 15 identical engines in a garage is 100 dB, what is the intensity level generated by each one of these
    8·1 answer
  • Which of the following features are found at an oceanic-continental convergent plate boundary?choose all that apply: 1-island ar
    11·2 answers
  • What can you conclude about the velocity of the object on the graph below
    6·1 answer
  • the amplitude of an oscillator decreases to 36.8% of its initial value in 10.0 s. what is the value of the time constant
    11·1 answer
  • ) Determining the order of events and the relative age of rocks by examining the position of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!