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mario62 [17]
3 years ago
9

The discovery of the Blombos cave suggests _________________

Physics
2 answers:
anyanavicka [17]3 years ago
5 0
The choices can be found elsewhere and as follows:

<span>a. copper alloy or bronze casting were first used in Sub Saharan Africa.
b. Islam became an economic and religious force in West and North Africa.
c. that abstract thought in humans occurred much earlier than once thought.
d. the French colonies were taken over before the third or fourth centuries.

I think the correct answer is option C. </span>The discovery of the Blombos cave suggests that abstract thought in humans occurred much earlier than once thought. 
Dmitrij [34]3 years ago
5 0

Answer:

that abstract thought in humans occurred much earlier than once thought.

Explanation:

You might be interested in
A bus is moving in astraight line at speed of 25m/s. What time does bus take to cover 5 km
WARRIOR [948]

Answer:

Kinematics

given,

time (t)=100 s, distance (s)=1 km=1000 m

V

b

=10m/s (relative speed r.p to bus)

Velocity (v)=

time

distance

=

100

1000

V

s

= velocity of scooter

V

b

→ Velocity of bus

V=V

s

−V

b

→As we know

10=V

s

−10

20=V

s

V

s

=20 m/s

Velocity with which scooterist

should chase the bus →20 m/s

Explanation:

I Hope you Guys Understood

please mark as Brainliest....

5 0
2 years ago
A system initially has an internal energy U of 504 J. It undergoes a process during which it releases 111 J of heat energy to th
Likurg_2 [28]

Answer:

615 J

Explanation:

internal energy (U) = 504 J

heat lost (q) = 111 J = - 111 J (negative sign is because heat is lost)

work done = 222 J

what is the final energy in the system

total energy = final energy - initial energy

final energy = total energy + initial energy

where

initial energy = 504 J

total energy = 222 - 111 = 111 J

final energy = 504 + 111 = 615 J

6 0
3 years ago
An object travels at 15 meters in 10 seconds east. What is it’s velocity?
Juli2301 [7.4K]
A new jxo rib is excellent is.
5 0
3 years ago
The field-line representation of the e-field in a certain region in space is shown below. The dashed lines represent equipotenti
lorasvet [3.4K]

You need to go on google an dlook this up

3 0
3 years ago
A round object of mass 10 kg and radius 0.5 m rolls without slipping down a hill from a height of 4.5 m. If its speed at the bot
Mice21 [21]

Answer:

moment of inertia is 2.72 kg m²

Explanation:

given data

mass m = 10kg

height h = 4.5 m

radius r  = 0.5 m

speed  v = 6.5 m/s

to find out

moment of inertia

solution

we apply here conservation of energy

that is

mgh = 1/2 ×mv² + 1/2 × Iω²

here I is moment of inertia we find and

we know ω = Velocity / radius = 6.5 / 0.5 = 13

and g = 9.8

so put here all these value

10 (9.8) 4.5 = 1/2 ×(10)(6.5)² + 1/2 × I(13)²

441 = 211.25 + 1/2 × I( 169 )

I = 2.72

so moment of inertia is 2.72 kg m²

7 0
3 years ago
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