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
Readme [11.4K]
3 years ago
11

An IGCSE student thinks it may be possible to identify different rocks (A, B and C) by measuring their

Physics
1 answer:
kherson [118]3 years ago
8 0

Answer:

See the answer below

Explanation:

a. The volume in the first measuring cylinder reads 70 cm^3 while that of the second reads 95  cm^3. Hence;

V1 = 70  cm^3

V2 = 95  cm^3

b. <u>An object will always displace its own volume in a liquid</u>. Hence:

Volume V of the rock sample = V2 - V1

   = 95 - 70 = 25  cm^3

c. Mass of A = 102 g

   Volume of A = 25  cm^3

<em>Density = mass/volume</em>

Hence, density of A = 102/25 = 4.08 g/cm^3

You might be interested in
Which ONE of the following pairs of physical quantities consists of one scalar and one vector quantity?
lyudmila [28]

Answer:

speed and acceleration

Explanation:

speed is a scalar quantity

acceleration is a vector quantity

7 0
2 years ago
Cognitive maps allow organisms to
RoseWind [281]
B. Mentally represent their environment
5 0
3 years ago
How can all matter on Earth be classified?
Dvinal [7]

Answer:

by helping

Explanation:

u see the answer is by helping cause cleaning the earth help and helpingb animals so it would be helping

3 0
2 years ago
Read 2 more answers
How far would a spacecraft moving in a circular orbit 500 km above Pluto's surface travel during that time?
Ilia_Sergeevich [38]

Answer:

The speed of the spacecraft should be 719.35m/s

Explanation:

if the spacecraft is orbiting the planet with a circular orbit, the gravitational force must act as a centripetal force. This means:

F_G=F_c\\\frac{GmM}{d^2}=m\frac{v^2}{d}

In this case, the pluto's mass M is 1.3099·10^22 kg. The radius of the planet R is 1188.3Km and G is the gravitational constant. Therefore:

\displaystyle\frac{G M}{d^2}=\frac{v^2}{d}\\v=\sqrt{\frac{GM}{d} } =\sqrt{\frac{GM}{(R + 500km)} } =719.35m/s

7 0
2 years ago
Speed is what type of value?
kondor19780726 [428]

Answer:

Speed can be thought of as the rate at which an object covers distance.

Explanation:

4 0
2 years ago
Other questions:
  • Which of the following is true about parallax?
    14·2 answers
  • I need help like right now!!!!! please
    14·1 answer
  • an ice sheet 5m thick covers a lake that is 20m deep. at what is the temperature of the water at the bottom of the lake?
    9·1 answer
  • The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and O2 gas. Which co
    8·2 answers
  • What’s the answer??????????????????
    10·1 answer
  • Psychologists often talk of the nature-nurture controversy. Which of these
    10·2 answers
  • The moon Phobos orbits Mars
    8·1 answer
  • A scalar quantity has
    8·1 answer
  • A measure of change in velocity in a measure of time is
    15·1 answer
  • A 90.0 kg man climbs hand over hand up a rope to a height of 9.47 m. How much potential energy does he have at the top?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!