Answer:
Newton's First Law of Motion.
Explanation:
Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.
In physics, Sir Isaac Newton's First Law of Motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.
In this scenario, a girl pushes her little brother down a snowy hill on a sled and he rides quickly to the bottom of the hill. The push from the little boy's sister is the external force acting on him and consequently, causing him to be in motion down the snowy hill.
A satellite is in orbit 36000km above the surface of the earth. Its angular velocity is 7.27*10^-5 rad/s. What is the velocity of the satellite? (The radius of the earth is 6400km.)
Answer:
v = 3.08 km/s
Explanation:
Given that,
The angular velocity of the satellite = [tex]\omega=7.27\times 10^{-5} rad/s[/tex]
A satellite is in orbit 36000km above the surface of the earth.
The radius of the earth is 6400 km
Let v is the velocity of the satellite. It can be calculated as :
[tex]v=r\omega\\\\v=(36000\times 10^3+6400\times 10^3)\times 7.27\times 10^{-5}\\\\v=3082.48\ m/s\\\\v=3.08\ km/s[/tex]
So, the velocity of the satellite is 3.08 km/s.
how to write it in second?
Answer:
like this
Explanation:
A wave with a frequency of 28 Hz has a wavelength of 6 meters. At what speed will this wave travel?
Answer:
168m/s
Explanation:
Given parameters:
Frequency = 28Hz
Wavelength = 6m
Unknown:
Speed of the the wave travel = ?
Solution:
To solve this problem, we us the wave - velocity equation:
Velocity = Frequency x Wavelength
Velocity = 28 x 6 = 168m/s
For an ideal gas, the change in internal energy AU is zero during an
A. isobaric process
B. isochoric process
C. isothermal process
D. adiabatic process
Plss help with my science
Answer:
rotates, axis,not sure,day, not sure, night, revolves, not sure, hemisphere, towards, summer, away, winter
Explanation:
please help! you are amazing! brainliest!
The NGC 3603 region of space is shown below. It is a cloud of gas and dust. Stars are forming in this cloud. How would NGC 3603 be classified?
A. As a nebula
B. As a galaxy
C. As a planet
D. As a solar system
The NGC 3603 region of space is shown below. It is a cloud of gas and dust. Stars are forming in this cloud. The NGC 3603 be classified as a nebula. The correct option is A.
What is a nebula?A tiny, ball-shaped nebula is known as a planetary nebula. It generates an ionized gas that is luminous. Large and typically erratic clouds are produced by diffuse nebulae.
Due to their big stars, they typically form a cluster of stars. a cloud of gas in space that can be seen in the night sky as a vaguely discernible brilliant patch, as something black, or as a shadow against other luminous objects.
Dust and gases, primarily hydrogen and helium, make up nebulae. The mass of gas and dust eventually grows so large that it is forced to collapse by gravity. The material in the cloud's core heats up as a result of the collapse, and this hot core is the start of a star.
Therefore, the correct option is A. As a nebula.
To learn more about nebula, refer to the link:
https://brainly.com/question/21420531
#SPJ2
light waves from the sun can travel trough outer space and reach the earth
Answer:
this is true
Explanation:
what is economic development
Answer:
Economic Development is the creation of wealth from which community benefits are realized. It is more than a jobs program, it's an investment in growing your economy and enhancing the prosperity and quality of life for all residents. Economic development means different things to different people.
Given that renewable sources provide only a small percentage of our energy and that nuclear power is so expensive, in your opinion, what can we realistically do to get off fossil fuels as soon as possible?
Answer:
No getting rid of fossil fuel is not at all possible.
Explanation:
Dream of 100% renewable energy is possible through electrification and use of energy from sun, water and wind. Since, the high production cost of power plant for extracting energy from these sources in itself is a big challenge and hence decarbonized energy in current scenario is not realistic.
HELP PLS MARKING BRANLIST 100 PTS TAKING TEST RN
How long will your trip take if you travel 890 km at an average speed of 92 km/hr?
81,880 hrs
9.67 s
9.67 hrs
81,880 s
What is the momentum of a car that is 12000 g and is traveling at 45 m/s? (LOOK AT THE UNITS)
a)
267 kg*m/s
b)
540000 kg*m/s
c)
540 kg*m/s
d)
.27 kg*m/s
e)
54000kg*m/s
Answer:
e
Explanation:
what is the foemula for this problem
Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vision, these snakes can sense electromagnetic waves that have
a lower frequency and a shorter wavelength.
a higher frequency and a longer wavelength.
a lower frequency and a longer wavelength.
a higher frequency and a shorter wavelength.
Answer:
A lower frequency and a longer wavelength is correct on edge 2021
please thank the person above me though, they deserve it.
These snakes can sense electromagnetic waves that have a lower frequency and a longer wavelength.
How do snakes detect?With almost ineffective hearing and vision, snakes can be extremely fast animals. Snakes can use chemoreceptors, heat, and even their tails to recognize prey and mates. With mostly ineffective hearing and vision systems, snakes can be extremely fast animals.
They also “see” in infrared. Thanks to the mechanism, they can track prey up to a meter away by the heat of their bodies. They use a simple organ, the loreal pit, located near the nostrils.
See more about snakes at brainly.com/question/412688
What happens when stress builds up at faults?
A. Energy is absorbed
B. Rock can bend and break
C. Plates form on the lithosphere
D. earthquakes develop at earths surface
Answer:
The answer is D because when the faults move that is the tectonic plates moving. So earth quakes will be forming when the fault moves.
Explanation:
Can you explain what a mixture is from a chemical prospective?
Answer:
I know I'm late but...
Explanation:
A mixture is the combination of two or more substances together. And I'm pretty sure that a mixture has no chemical substances. And mixtures can be physically separated.
Hope this helps you!
Stay safe and have a wonderful day/night!! :)
Please give brainliest to the person above!!!!!
8.92 x 10 ^ 6 (convert from scientific notation to a standard aka regular number)
HELP PLS MARKING BRANLIST 100 points TAKING TEST RN
15 m/s is a _____
measurement.
a vector quantity
a scalar quantity
neither a scalar nor a vector quantity.
both a scalar and a vector quantity
Answer:
I believe its a vector quantity
Hope this helps!!!
Answer:
Both scalar and vector qualities
Explanation:
What are 2 benefits from vitamin b and 2 food sources?
An object is raised by a height of 8.95 m and gains 3099.1 J in its gravitational potential store. If the object has a mass of 961.1 kg, what is the strength of the gravitational field in N/kg? Give your answer to 2 decimal places.
Answer: Calculate GPE for different gravity of different enviornments - Earth, the Moon, ... kg, g, lb, oz ... variable in the physics equation for gravitational potential energy, when three of ... PEg or PE = gravitational potential energy; m = mass of an object ... have 147.15 Joules of potential energy, PE = 3kg * 9.81 m/s2 * 5m = 147.15 J.
please help! you are awesome! also brainliest :)
The diagram below shows the two forces that keep Earth in orbit around the Sun.
What is responsible for Earth's movement toward the Sun?
A. Sun's forward motion
B. Earth's forward motion
C. Expansion of the universe.
D. force of gravity
Answer:
It's d
Explanation:
Answer: D
Explanation:
Force of gravity
If an engine can produce 670 J of energy in 1 min, how many watts can it output?
Answer:
11.2Watts
Explanation:
Given parameters:
Energy produced by the engine = 670J
Time taken = 1min = 60s
Unknown:
Number of watts it can output = ?
Solution:
This problem entails finding the power of the engine.
Power is the rate at which work is being done.
So;
Power = [tex]\frac{Work done }{time}[/tex]
Power = [tex]\frac{670}{60}[/tex] = 11.2Watts
Can an object with acceleration of zero be in motion?
Answer:
NO
Explanation:
if it has no acceleration then it's not moving
Answer:
Yes when the velocity is constant then the acceleration is said to be zero. Thus an object with 0 acceleration can be in motion.
Let me give you an example to make you more clear
Example:
When a car is traveling at a constant 90 km/h in a straight line has nonzero velocity and zero acceleration.
When we stretch a spring, which two factors affect how much elastic
potential energy is stored in it
Use the equation d = st, where d = distance, s = speed, and t= time. If you ride
a skateboard at a speed of 8 m/s for 12 seconds, how far do you travel?
O A. 48 m
B. 1.5 m
C. 96 m
D. 4 m
Answer:
C- 96 m
Explanation:
d= st
d= 8 m/s x 12 seconds
d= 96 metres
Show the steps im confused.
The answer is 14 m/s
Answer:
14 m/s
Explanation:
KE=1/2mv^2
5880J= 1/2(60kg)v^2
5880J=(30)(V^2)
5880/30=V^2
196=v^2
square root of 196 is 14
4) A boy pulls a wagon with a force of 6N to the
left as another boy pushes it with a force of 4N to
the left. What is the net force?
plz help me!!! I'm make u the brainlyest!!!! plzzzz helpppp
A Car makes a 75-mile trip South in 1 hour. For the first 30 minutes, it drove 50 mph. For the second 30 minutes, it drove 100 mph. Answer the following questions:
a. Instantaneous Velocity at minute 15:
b. Instantaneous Velocity at minute 45:
c. Average velocity of the entire trip in mph:
Answer:
B
Explanation:
I need help ASAPP
Thanks+ BRAINLIST only for correct answer for these questions.
Which among the following forms of electromagnetic waves has the highest frequency range?
O Microwave
O Radio waves
O X-ray
O Ultraviolet
Radio waves carry information from a broadcasting station to your radio or television.
-visible light
- sound
-X -ray
- gamma ray
Answer:
First) X-ray
Second) I think sound waves
Explanation:
Need help ASAP
Thanks+ BRAINLIST only for correct answers
4. Which of the following sets of EM radiation can harm your body cells?
a. Gamma ray, microwaves, infrared
b. Light, ultraviolet, x-ray
c. Microwaves, ultraviolet, infrared
d. Ultraviolet, x-ray, gamma ray
!!URGENT PLEASE!!
The equation for the formation of water from hydrogen gas and oxygen gas is 2H2+O2→2H2O . How many grams of water can be made from 64 g of oxygen gas?
Answer: 144 g
the mol of the oxygen gas is 64/16 = 4 (mol)
we have:
2H2 + O2 => 2H2O
4 ------> 8
=> the mol of H2O is 8 mol
=> m(H2O) = 8.(2 + 16) = 8.18 = 144 (g)
Explanation: