Answer:
gravity
Explanation:
it controls how fast an object falls
4. Two students have volunteered to explore the galaxy in a spaceship. As they travel through space, they
measure the magnitude of the gravitational force between their spaceship and the Earth. They find that the
gravitational force on the spaceship is -
A. proportional to the distance from the Earth
B. inversely proportional to the distance from the Earth
C. proportional to the square of the distance from the Earth
D. inversely proportional to the square of the distance from the Earth
Answer:B
Explanation:
They find that the gravitational force on the spaceship is inversely proportional to the distance from the Earth. The correct option is B.
What is gravitational force?The gravitational pull would be stronger if the gap were cut in half. Coulomb's law, states that the gravitational force between two items in the universe is directly proportional to the product of the masses of the objects.
And inversely proportional to the distance between them is used to calculate the gravitational force between two objects in the universe. Whether there is a body there or not, gravity is the force between two bodies.
Everybody in the cosmos is drawn to every other body by a force that is directly inversely correlated to the square of the distance between them and directly inversely correlated to the product of their masses.
Therefore, the correct option is B. inversely proportional to the distance from the Earth.
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How far does an object travel if it starts from rest and accelerates at a rate of 2.0 meters per second2 for 6.5 seconds?
Answer:
42.25 m
Explanation:
According to the question;
u = 0 m/s (journey started from rest)
a = 2 m/s^2
t = 6.5 secs
Given that;
s = ut + 1/2at^2
s = (0 * 6.5) + 1/2 * 2 * (6.5)^2
s = 0 + 42.25
s = 42.25 m
The energy generated by the sun travels to Earth as electromagnetic waves of varying lengths. Which statement describes an electromagnetic wave with a long wavelength
Answer: 4(45)
Explanation:
It’s not equal
Answer:
H. It has a low frequency and can travel through a vacuum.
Explanation:
I got it right
3) Circle the right alternative.
i) The process of using a material of low thermal conductivity to prevent heat loss is
called
a) cooling
b) lagging
C absorption
d) contraction
ii) Metals are good conductors of heat because
(a) they are ductile
(b) they contain free protons
(C) they contain loose electrons (d) their atoms can be easily
displaced
iii) On a cool day, a metal feels cold to the touch because
a) metals contain less heat
b) the temperature of the metal is the same as that of the surroundings
c) the temperature of the metal is less than that of the surroundings
d) the metal conducts the heat away from the hand.
Answer:
1) C (I think)
2) C
3) D
Explanation:
I know that 2 and 3 are correct. just not sure about 1
3. Why is a subducting plate boundary considered a type of
convergent plate boundary?
Answer:
✔ convergent
Explanation:
Answer:
B ( Convergent)
Explanation:
Two boys, Shrijan having weight 600N and Shrijesh having weight
300N are playing see-saw. If Shrijan is sitting at 2m from fulcrum,
where should Shrijesh sit from fulcrum to balance Shrijan?
Answer:
to be balanced moments should be equal
4m
Explanation:
[tex]fd = fd \\ 600 \times 2 = 300 \times x \\ \frac{600 \times 2}{300} = x \\ 4m[/tex]
Answer:
4m
Explanation:
fd=fd
600×2× x
300
4m ans
Katie rolls a toy car off the end of a table.
A car sits on a tall orange box with a shorter orange box in front if it. A short line from the car leads to line A, which points straight down to the shorter box, line B, which leads down to the shorter box at an angle, line C, which curves down to the shorter box, and line D, which extends past lines A-C and then points straight down to the shorter box.
Which path will the car follow when it leaves the table?
A
B
C
D
Answer:
The correct answer is C.) C
Explanation:
I just did the test on edge and got it right
A car sits on a tall orange box with a shorter orange box in front if it. A short line from the car leads to line, which curves down to the shorter box, and line. Therefore, the correct option is option C.
What is car toy?Many of us do not pause to contemplate the importance of play in the lives of children, whether they are our own or the children of friends and relatives. We just take it for granted that kids spend their free time driving toy trucks about or pretending to be dragons (or both), and although it's amusing (certainly for them and occasionally for us), we don't give it much thought beyond that.
It's a great time to start playing with cars, dump trucks, and other vehicles. Not that they'll need much convincing: boys, in particular, appear to be captivated to anything that includes wheels long before their first birthday. which curves down to the shorter box, and line.
Therefore, the correct option is option C.
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You fill a car with gasoline. The car now has...
Answer:
Fuel or a provided source of energy for combustionWhy can a device never be 100% efficient? Explain.
Answer:
No machine is free from the effects of gravity, and even with wonderful lubrication, friction always exists. The energy a machine produces is always less than the energy put into it (energy input). ... That is why 100% efficiency in machines shall not be possible.
Answer:The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent.
Explanation:
what should be angle between force and displacement to get the maximum work
Answer:
0°
Explanation:
The angle between force and displacement should be 0° in order to get the maximum work done.
Work done = Force x dcosФ°
Ф is the angle between force and displacement
When Ф is zero, the maximum work done is attained
When Ф is 90, the minimum work is done, in fact, work done is 0
A spring with a spring constant of 34 N/m is stretched 14 m. What is the energy stored in the
spring?
Answer:
Elastic potential energy
Elastic potential energy is stored in the spring. Provided inelastic deformation has not happened, the work done is equal to the elastic potential energy stored.
Explanation:
becuse
Answer:10
Explanation:
Which energy from the choices given is the strongest
Visible Light
Microwaves
UV Light
X-Rays
Answer:
X-Rays
Explanation:
A hummingbird has a mass of about 1.7 g. Suppose a hummingbird does 0.15 J of work against gravity, so that it ascends straight up with a net acceleration of 1.2 m/s2. How far up does it move?
Answer:
2 m long, how wide is it? SOLUTION. Given: F = 60.0 N. W = 2.05 × 105. J x = 9.60 × 102 m. Unknown: d = ? ... moved? 3. A hummingbird has a mass of about 1.7 g. Suppose a hummingbird does 0.15 J of work against gravity, so that it ascends straight up with a net acceleration of 1.2 m/s. 2 . How far up does it move? 4.
Explanation: hope this helps plz help me with my question
A people mover has a velocity of 1 m/s, VF, and is 150 m, XF, long. If a man walks 2 m/s, VI, relative to the people mover, how long will it take him to
reach the opposite end if he walks in the direction that the people mover travels?
Why is an element considered a pure substance?
im i right
An element is considered a pure substance because it is made up of only one type of atom and cannot be broken down into a simpler form.
Answer:
Explanation:
right
4. A wave with a frequency of 30 Hz has a wavelength of 5 meters. At what speed will the
wavelength travel?
Answer:
6 m/s
Explanation:
Please show the work and steps. The answer is (3.3 s, 15 m/s)
Answer:
t = 3.3 s and V = 15 m/s
Explanation:
Given that,
Distance covered by the car, d = 50 m
Initial speed, u = 5 m/s
Final speed, v = 25 m/s
Firstly we can find the acceleration of the car using third equation of motion. i.e.
[tex]v^2-u^2=2as\\\\a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{(25)^2-(5)^2}{2(50)}\\\\a=6\ m/s^2[/tex]
Let t is the time taken by the car to occur this.
[tex]t=\dfrac{v-u}{a}\\\\t=\dfrac{25-5}{6}\\\\t=3.3\ s[/tex]
Let v is the average velocity of the car. It can be calculated as follows :
[tex]V=\dfrac{u+v}{2}\\\\V=\dfrac{25+5}{2}\\\\V=\dfrac{30}{2}\\\\V=15\ m/s[/tex]
So, the time taken by the car to occur this is 3.3 seconds and the average velocity of the car is 15 m/s.
need help in is psychology
Answer:
D. The General Adaptation Syndrome
Explanation:
Hans Selye, an endocrinologist, developed the "Stress Theory." He showed the relationship of "stress" to the person's development of disease.
Under stress, a person's body experiences changes. The person tries to cope with these through three stages: Alarm Reaction Stage, Resistance Stage and Exhaustion Stage. It is at the last stage that a person's immune system is placed at a huge risk. Once the person is exposed to a stressor for a period of time, he becomes hopeless and his body tends to give up coping. He then succumbs to stress-related illness.
2. Which positions of the pendulum would have the most potential energy?
A1 and 2
B2 and 3
C 1 and 5
D 4 and 5
Explanation:
im listening to metallica
turn the page
3 A jet fighter has a mass at take-off of 28 000 kg.
a)Its engines produce a force of 70 000 N. What
is its acceleration?
b) What is its acceleration if the force from the
engine is increased to 120 000 N?
Answer:
A. 2.5 m/s²
B. 4.29 m/s²
Explanation:
A. Determination of the acceleration.
Mass (m) = 28000 Kg
Force (F) = 70000 N
Acceleration (a) =?
Force (F) is simply defined as the product of mass (m) and acceleration (a). Mathematically, it is expressed as:
Force (F) = mass (m) × acceleration (a)
F = ma
Divide both side by m
a = F / m
With the above formula, we can obtain the acceleration as follow:
Mass (m) = 28000 Kg
Force (F) = 70000 N
Acceleration (a) =?
a = F / m
a = 70000 /28000
a = 2.5 m/s²
B. Determination of the acceleration.
Mass (m) = 28000 Kg
Force (F) = 120000 N
Acceleration (a) =?
a = F / m
a = 120000 /28000
a = 4.29 m/s²
Which of these can be used to find the volume of a juice box?
A: mass divided by volume
B: mass•weight•length
C: mass divided by weight
D: length•width•height
Answer:
Legth * width* height is how u find volume
Explanation:
You get points!! IMPORTANT
A DUI manslaughter charge is more serious than a vehicular manslaughter charge.
A. True
B. False
Answer:
A
Explanation:
Answer:True.
Explanation:
If charged with DUI Manslaughter it is 1. A DUI charge and then can be moved to vehicular manslaughter sooo thats more charges is how I see it.
Four atoms of hydrogen combine with one carbon atom to form CH4, but only two hydrogen atoms combine with one oxygen atom to form H2O. Which of the following helps to explain why?
Hydrogen has one valence electron.
Oxygen has two vacancies in its electron shell, but carbon has four vacancies.
Metallic bonds form between positively charged metal ions and delocalized electrons.
Atoms may share electrons in order to fill their electron shells.
Answer:
Oxygen has two vacancies in its electron shell, but carbon has four vacancies.
Explanation:
Oxygen has vacant space for two electrons in its outermost shell. Hence, it can accommodate two electrons from two hydrogen atoms. This leads to the formation of the H₂O molecule. On the other hand, the Carbon atom has vacant space for four electrons. Hence, it can accommodate four electrons from four hydrogen atoms. This leads to the formation of the CH₄ molecule.
In this way the explanation can be provided by the following statement:
Oxygen has two vacancies in its electron shell, but carbon has four vacancies.
Answer:
-Atoms may share electrons in order to fill their electron shells.
- Hydrogen has one valence electron.
- Oxygen has two vacancies in its electron shell, but carbon has four vacancies.
Explanation:
just did it
HELP IM IN A EXAM!!!
Which organisms are most closely related?
species A and B
species A and C
species B and C
species C and D
Answer:
answer is b and c
Explanation:
i got it right
Answer:
its C
Explanation:
WILL MARK THE BRAINLIEST
pls help
Answer:
I think B but im not sure
Explanation:
Answer: i think both mirrors are used to reflect the beam of light.
Explanation:
gr 10 science right? im almost done the semester and i learnt this already so i think the best answer is the last one
How were Jupiter, Saturn, Uranus, and Neptune formed?
Explanation:
They were formed by accretion
Answer:
(For me they were formed by God.)
Planets are believed to have formed through the accumulation of a large number of small bodies. The orbits of these cores then evolve into orbits that resemble those of Uranus and Neptune, as a result of gravitational interactions with the small bodies in the outer disk of the protosolar nebula.
Explanation:
Brainliest plz
found at the higher frequency end of the radio spectrum, but they are commonly distinguished from radio waves because of the technologies used to access them
what wave is this called
Answer:
stealing my points back
Explanation:
What is the momentum of a 0.255kg apple falling at 16.0 m/s
what name
is given
to the work done
per conlomb of charge
passing between two points?
Electric potential difference is named to the work done per coulomb of charge passing between two points.
What is electric potential?An object's electrical potential energy is determined by two factors: the charge the thing carries internally, and the position of the object in relation to other electrically charged objects. The amount of effort required to move an object from one location to another against an electric field determines the strength of the electric potential.
The total potential energy that a unit charge would have if it were positioned everywhere in space is known as electric potential energy.
The energy gained when an object moves against an electric field is known as the electric potential energy. The electric potential is calculated for any charge by dividing the potential energy by the charge.
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A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.
So were do you go if you get sucked into a black hole? What happens to Your body? Do you travel to another solar system?
Answer:
I think you would die instantly-
Explanation:
wouldnt the air force be to much and your insides will be like jelly?? and wouldnt you snap in to your something? or am i wrong??
