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
FinnZ [79.3K]
3 years ago
14

The belief that race indicates certain traits and capacities and that one's own race is superior is called

Physics
1 answer:
EleoNora [17]3 years ago
7 0
The answer is RACISM.
You might be interested in
Which of the following is not a symptom associated with hypertension
Romashka-Z-Leto [24]
Do you have any answer choices?

3 0
3 years ago
PLZ HELP
Nadya [2.5K]

1) The mass of the continent is 3.3\cdot 10^{21}kg

2) The kinetic energy of the continent is 1683 J

3) The speed of the jogger must be 6.57 m/s

Explanation:

1)

The continent can be represented as a slab of size

d=5850 km = 5.85\cdot 10^6 m

and depth

t = 35 km = 3.5\cdot 10^4 m

So its volume is

V=d^2 t = (5.85\cdot 10^6)^2(3.5\cdot 10^4)=1.20\cdot 10^{18} m^3

We also know that the density of the continent is

\rho = 2750 kg/m^3

Therefore, we can calculate its mass as:

m=\rho V=(2750)(1.20\cdot 10^{18})=3.3\cdot 10^{21} kg

2)

The kinetic energy of the continent is given by

K=\frac{1}{2}mv^2

where

m is its mass

v is its speed

We have already calculate its mass, while the speed is

v = 3.2 cm/year

We have to convert into SI units first, as follows:

v=3.2 \frac{cm}{year} \cdot \frac{1}{100 cm/m} \cdot \frac{1}{(365 d/y)(24h/d)(60min/h)(60 s/min)}=1.01\cdot 10^{-9} m/s

The mass is

m=3.3\cdot 10^{21} kg

So, the kinetic energy of the continent is

K=\frac{1}{2}(3.3\cdot 10^{21})(1.01\cdot 10^{-9})^2=1683 J

3)

Here we have a jogger having the same kinetic energy of the continent, so

K=1683 J

And the kinetic energy of the jogger can be expressed as

K=\frac{1}{2}mv^2

where

m = 78 kg is the mass of the jogger

v is his speed

We can therefore re-arrange the equation to find the speed of the man, and we get:

v=\sqrt{\frac{2K}{m}}=\sqrt{\frac{2(1683)}{78}}=6.57 m/s

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

8 0
3 years ago
Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from the front wall
Allisa [31]

Answer:

Flemmings' left hand rule  and Downward direction

Explanation:

The person could able to determine the path of force by applying the left-hand rule of Fleming.

Via holding the thumb the forefinger and second finger at right angles for one other

The left-hand rule is applied in the electric motors

On the other hand, the right-hand rule is applied for electric generators.

So different hands are used for the different thing as there is a difference between the cause and effect

Therefore in this case there is a left hand rule used and the direction is downward

7 0
3 years ago
A ball is dropped from the top of a cliff. By the time it reaches the ground, all the energy in its gravitational potential ener
gogolik [260]

U = mgh, Ek = 1/2*m*v^2

U = Ek (conservation of mechanical energy)

⇒ mgh = 1/2*m*v^2

∵g = 10, v = 20

⇒ 10h = 1/2*400

⇒ h = 20 (m)

4 0
2 years ago
Heterogeneous Mixture And Homogeneous Mixture
sdas [7]

Answer: Go ask your teacher and im sure if you search it on good it will answer faster than this.

Explanation: Have a great day \ and be safe

7 0
3 years ago
Other questions:
  • Scientists can estimate the age of a planetary surface by counting __________. scientists can estimate the age of a planetary su
    15·1 answer
  • An object moves in the eastward direction at constant speed. A net force directed northward acts on the object for 5.0 s. At the
    10·2 answers
  • If the moon were twice as far from years as it is now the following would be true
    7·1 answer
  • Which waves move fast Longitudinal waves or Transverse waves and why???
    8·1 answer
  • A stone is dropped into a river from a bridge 41.7 m above the water. Another stone is thrown vertically down 1.80 s after the f
    6·1 answer
  • What is the magnitude of a point charge that would create an electric field of 1.18 N/C at points 0.822 m away?
    6·1 answer
  • An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6N/kg. What is her mass?
    13·2 answers
  • it takes you 9.5 min to walk with an average velocity of 1.2m/s to the north from the bus stop to the museum entrance. what is y
    14·1 answer
  • The nucleus contains protons and neutrons. Being positively charged, the protons repel each other. The nucleus should fly apart
    10·1 answer
  • A car moving at a speed of 10 m/s enters a Q. highway and accelerates at 4 m/s2. How fast will the car be moving after it accele
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!