Answer:
300km
Explanation:
we use the formula s=d/t and solve for d.
d=st
s1=70km/h
s2=80km/h
t=2h
total d= (ts1)+(ts2)
=2(70)+2(80)
=300km
Pls answer it ASAP I need it today
Activity 6: Write the uses of each cleaning compound.
1. Detergent-
2. Solvent cleaners-
3. Avid cleaners-
4. Abrasives-
which type of wave has rarefactions and compressions
A cup of tea with a temp. of 80°C is put on a table in a 20°C room. What happens to thermal energy and molecular motion of the tea when it is left on the table? *
Answer:
The thermal energy increases and the molecules move faster.
what is deltoids muscle?
Answer:
The deltoid muscle is a large triangular shaped muscle associated with the human shoulder girdle, explicitly located in the proximal upper extremity.
Explanation:
Select all that apply.
The spectrum of Star S is compared to a reference hydrogen spectrum. What can be concluded about Star S?
Star S is moving away from Earth.
Star S is moving toward Earth.
Star S has transverse motion.
Star S has radial motion.
Answer:
Star S has radial motion
Explanation:
Because the radial motion stracture is kinda similar to hydrogen spectrum(I'm guessing,only lol)
The spectrum of Star S is compared to a reference hydrogen spectrum. It is concluded that Star S has transverse motion.
What is hydrogen spectrum?Hydrogen spectrum is used to show the quantized electronic structure of an atom.
If Star S is not showing radial motion. So, it is not moving away or towards the Earth.
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fraction that occurs in gases and liquids is called what
plzz help meeeee
Answer:
it is called fluid friction.
A possible answer to a scientific problem is called a
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.
Explanation:
Answer:
hypothesis is likely tobe the answer, im indian
A box is being pushed at constant speed up an inclined
Answer:
ok what is the question
Explanation:
I don't know what the question is
Calculate the pressure increase at the bottom of a pool of depth 2m. Density of water=1000kg/m^3 g=10N/kg
need an answer asap
if u know physics pls answer the rest of my question!!
i will give brainliest
a] negative charge it's e-
Explain the Kinetic Theory of Matter
and use an example from everyday life
Answer:
The Kinetic Theory of Matter or KTM as i will call it, states that every object is made of many many small particles (humans are made of sextillions of atoms), and that they are constantly moving and bumping each other. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.
An example would be Brownian Motion- the random movement of dust particles because of collisions with "air" molecules and how gases behave i.e. Boyle's, Charles', and Gay-Lussac's Laws.
in figure Car’s weight = 16,000 N. What is the external input force?
The answer is 200 Newton
Answer:
The answer is 200 Newtok
The air is 80% Nitrogen, in what form do organisms use nitrogen?
Answer:
Nitrogen in the air
Explanation:
The Earth's atmosphere contains almost 80 % nitrogen gas. It cannot be used in this form by most living organisms until it has been fixed, that is reduced (combined with hydrogen), to ammonia.
A mango fruit drop from a branch 10m above the ground. Just before hitting the ground the velocity is ?
Answer:
Below
Explanation:
Here are all the values we are given :
dy = 10m
We know that :
a = 9.8 m/s^2 because it is a free falling object
vi = 0 m/s
Here is the formula to find the final velocity :
vf^2 = vi^2 + 2ad
vf^2 = (0)^2 + 2(9.8)(10)
vf^2 = 196
vf = 14 m/s
Therefore the mango's velocity before hitting the ground is 14 m/s
Hope this helps!
Quinn accelerates her skateboard along a straight path from 0 m/s to 4.0 m/s
in 2.5 seconds. Calculate the acceleration of the skateboard
[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]
[tex]\\ \sf\longmapsto Acceleration=\dfrac{4-0}{2.5}[/tex]
[tex]\\ \sf\longmapsto Acceleration=\dfrac{4}{2.5}[/tex]
[tex]\\ \sf\longmapsto Acceleration=1.6m/s^2[/tex]
what piece of equipment on a boat is most important in preventing propeller
What is the physical dimension for moment
Describe all the ways that Newton’s Laws can apply in the game of football?
Answer:
Newton's Second Law of Motion states that a force on an object is equal to the mass of the object multiplied by its acceleration (F=ma). ... When the punter kicks the ball, his foot exerts a force on the ball. The football then exerts an equal amount of force in the opposite direction on the kicker's foot.
In football, the foot of a kicker applies force to the ball when he kicks it, as the force acting on a ball is equal to that ball's mass times its acceleration, so Newton's second law is applied here.
What is Newton's Second Law?The precise explanation of how a force can change a body's motion is given by Newton's second law. A body's momentum is said to vary at a rate equal to the force acting on it over time, both in magnitude and direction. A body's momentum is determined by its mass and velocity together.
According to Newton's Second Law of Motion, a force acting on an object is equal to that object's mass times its acceleration (F=ma). The punter's foot applies force to the ball when he kicks it. The kicker's foot is then subjected to an equivalent force from the football acting in the opposite direction.
Therefore, In football, the foot applies force to the ball when he kicks it, so Newton's second law is applied here.
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Sound wave is an example of ……………………………………. wave.
1.Energy
2.Medium
3.Transverse
4.Longitudinal
Answer:
4
Explanation:
longitudinal
have a beautiful day ahead
How much work is done by a man if he moves a distance of 15m by applying the force of 20N? Find his power if he does the work in 2 seconds. (answer - 300 joule,150w)
Work= Distance × Force
15 metre × 20 N
300 Joule
Now ,
Power,
2 seconds = 300/2
150 watt
We know that
Unit of Work is Joule
Unit of Power is watt
So,
Work - 300 joule
Power= 150 watt
Encontrar la distancia y desplazamiento de las dos trayectorias si se mueve el móvil Desde A hasta B
Answer:
Build Your Confidence
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Explanation:
What is it about a black hole that makes it powerful?
Answer:
A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes.Explanation:
Hope this helps :)
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And have an amazing day <3
answer pls!!
please if ur smart in psychics answer the rest of my questions
will give brainliest
Explanation:
q= n e
6 × 10^-11 = n (1.6 × 10^-19)
n = 6×10^-11 / 1.6 × 10^-19
n= 3.75 × 10⁸ electrons
A battery-powered lawn mower has a mass of 48.0 kg. If the net external force on
the lawn mower, including both your push and any resistance, is 40.5 N, then what
is the mower's acceleration?
The lawnmower's acceleration is 0.844 meters/sec².
Given to us:
Mass of the lawnmower, m = 48.0 kgs. ,
Net external force, F = 40.5 N,
As we know, a force can change the motion of an object. A force causes an object with mass to change its velocity.
Therefore, when we calculate force, we take force as a net force.
[tex]\bold{ Force= Mass\times (change\ in\ velocity)=Mass\times acceleration}[/tex]
[tex]F = m\times a\\40.5 = 48 \times a\\\\a= \dfrac{40.5}{48} \\\\a= 0.844\ m/sec^2[/tex]
Hence, the lawnmower's acceleration is 0.844 meters/sec².
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How does the connection between electricity and magnetism allow you to make
a motor out of a coil and a magnet? How do induced currents allow you
make a generator out of a coil and a magnet?
in longitudinal waves in a spring, the parts where the coils are close together are called
Answer:
compression
Explanation:
compression
Which 2 points are unbalanced??
Answer: section 2 and 4
Explanation:
I had this problem before and that was the answer.
what process is a form of mechanical weathering ?
Answer: abrasion-is the physical process by which rocks and clasts are reduced in size
Explanation: but i didn't see any answer chooses
Answer this question i will mark you brainliest
Answer:
all of the above OR LETTER B
Explanation:
THAT'S WHAT I KNOW:))
Answer:
la c)
Explanation:
how many orbitals are in the 5th principal energy level
Answer:
25
Explanation:
(1 + 3 + 5 + 7 + 9) orbitals = 25 orbitals