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
choli [55]
3 years ago
10

Which statement is true about how early humans met their needs?

Physics
1 answer:
Black_prince [1.1K]3 years ago
8 0

Answer:

they were hunter gatherers

Explanation:

You might be interested in
What is the volume of a rock with a density of 3.00 g/cm3 and a mass of 600g?
Mademuasel [1]
The equation of D = m/V

Where D = density
m = mass
and V = volume

We are solving for V, so with the manipulation of variables we multiply V on both sides giving us 
V(D) = m 
now we divide D on both sides giving us
V = m/D 

We know our mass which is 600g and our density is 3.00 g/cm^3
so
V = 600g/3.00g/cm^3 = 200cm^3  or 200mL

a cubic centimeter (cm^3) is one of the units for volume. It's exactly like mL. 1 cm^3 = 1 mL
 
If you wish to change it to L, you'd have to convert. 
5 0
3 years ago
An air-filled pipe is found to have successive harmonics at 700 Hz , 900 Hz , and 1100 Hz . It is unknown whether harmonics belo
Artyom0805 [142]

Answer:

the length of the pipe is 0.85 m or 85 cm

Explanation:

Given the data in the question;

The successive harmonics are;  700 Hz , 900 Hz , and 1100 H

Now, for a closed pipe,

length of pipe (L) = λ/4

Harmonics; 1x, 3x, 5x, 7x, 9x, 11x

1100Hz - 900Hz = 200Hz

⇒ 2x = 200Hz

x = 100Hz ( fundamental frequency )

λ = V/f = 340 /100 = 3.4 m

Now

Length L = λ / 4

L = 3.4 / 4

L = 0.85 m or 85 cm

Therefore, the length of the pipe is 0.85 m or 85 cm

7 0
3 years ago
A _______ is a tool often used to measure the amount of force exerted by an object
Marina86 [1]

Answer:

Force meter

Explanation:

4 0
3 years ago
How is newtons law of motion used for testing the safety of automobile
Colt1911 [192]
Newton's first law of motion is an object in motion stays in motion until acted upon by another force. Driving at 30 mph in a car is going to stay constant until you crash the car into a wall, stopping the car.
3 0
4 years ago
Usa test prep- Look at the picture below to answer. If u answer correctly i will mark you as brainliest!
Vladimir [108]

Answer:

A

Explanation:

The greatest concentration of atomic mass is in the nucleus because it is made up of protons and neutrons. The electrons surrounding the nucleus don't have as much mass as protons or neutrons.

Hopefully this helps...

4 0
3 years ago
Read 2 more answers
Other questions:
  • You are lost at night in a large, open field. Your GPS tells you that you are 122.0 m from your truck, in a direction 58.0o east
    9·1 answer
  • Which wave has a disturbance that is parallel to the wave motion?
    8·1 answer
  • Room temperature water is placed in an Erlenmyer flask and heated to the boiling point. After the flask is removed from the heat
    6·1 answer
  • A thin, light wire 75.2 cm long having a circular cross section 0.560 mm in diameter has a 25.2 kg weight attached to it, causin
    15·1 answer
  • What’s the answer???
    10·1 answer
  • A 230mg piece of gold is hammered into a sheet measuring 23cm x 17cm. What is the thickness of the sheet in meters? Density of g
    6·1 answer
  • A bus decreases its speed
    7·1 answer
  • The angular velocity of a 755-g wheel 15.0 cm in diameter is given by the equation ω(t) = (2.00 rad/s2)t + (1.00 rad/s4)t 3. (a)
    7·1 answer
  • a boat sailing against the current experiences an acceleration of -11 m/s^2 if the boats initial velocity is 44 m/s upstream, ho
    8·1 answer
  • What is the range of motion of the elbow if extension is 0° and flexion is 145°?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!