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Juli2301 [7.4K]
3 years ago
11

Describe how the ancient people follow some natural event to measure time

Physics
2 answers:
ASHA 777 [7]3 years ago
8 0

Answer: they used seasonal wind, temperature changes, they also used the flooding of rivers. all these are used to tell time

Explanation: the seasons change the climate of the area

statuscvo [17]3 years ago
7 0
5 Tools We Use to Measure Time
Sundials.
Water Clocks. - A water clock uses the flow of water to measure time
Mechanical Clocks.- clock are wound with a key, and this tightens the mainspring.
Quartz Clocks- Inside a quartz clock or watch, the battery sends electricity to the quartz crystal through an electronic circuit.
Atomic Clocks.- a clock device that uses a hyperfine transition frequency in the microwave
You might be interested in
What are the differences between oceanic and continental crust
Lostsunrise [7]

Explanation:

Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.

The continental crust is by far the older of the two types of crust.

Hope this helps you out ; )

6 0
3 years ago
Given that the mass of the Earth is 5.972 * 10^24 kg and the radius of the Earth is
Pachacha [2.7K]

Answer:

gₓ = 6.52 m/s²

Explanation:

The value of acceleration due to gravity on the surface of earth is given as:

g = GM/R²   -------------------- equation 1

where,

g = acceleration due to gravity on surface of earth

G = Universal Gravitational Constant

M = Mass of Earth

R = Radius of Earth

Now, for the alien planet:

gₓ = GMₓ/Rₓ²

where,

gₓ = acceleration due to gravity at the surface of alien planet

Mₓ = Mass of Alien Planet = 2.4 M

Rₓ = Radius of Alien Planet = 1.9 R

Therefore,

gₓ = G(2.4 M)/(1.9 R)²

gₓ = 0.66 GM/R²

using equation 1

gₓ = 0.66 g

gₓ = (0.66)(9.81 m/s²)

<u>gₓ = 6.52 m/s²</u>

3 0
3 years ago
An object is dropped from a height of 25 meters. At what velocity will it hit the ground?
Vikki [24]
Data:
h=25 m
v₀=0 m/s
g=9,8 m/s²

we use this formula
h=h₀+v₀.t+(1/2).g.t²
25 m=0 m+0 m/s.t+(1/2).(9,8 m/s²).t²
25 m=4,9 m/s².t²
t²=25 m /4,9 m/s²
t²=5,1 s²
t=√(5,1 s²)=2,26 s 

Now, we calculate the última velocity 
v=v₀+gt
v=0 m/s+9,8 m/s².(2,26 s)=22,14 m/s≈22 m/s

solution: c.)  22 m/s


5 0
4 years ago
A high-speed train in Japan travels a distance of 300. kilometers in 3.60 x 103 seconds. What is the average speed of this train
sergiy2304 [10]

Answer:

The average speed is 83.3 m/s

Explanation:

5 0
3 years ago
Give an example of a mixture that contains more than one state of matter
grigory [225]
GEL IT IS COMBINATION OF SOLID AND LIQUID
3 0
3 years ago
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