Answer:
A i think tell me if i got it right
Explanation:
Based on the location on the periodic table, Potassium (K) is the metal that will be less reactive than rubidium and more reactive than calcium.
Please help me plzzzzz
Answer:
what
Explanation:
why do place on earth receives different amounts of sunlight
Answer:
Because of earth's tilt
Explanation:
Answer:
Different parts of Earth's surface receive different amounts of sunlight. ... Because of the Earth's tilt the sun's rays strike the surface at a slant at the poles; they are less focused. This spreads the rays over a wide area. Because the sun's rays hit at a slant, the area is heated less.
Explanation:
From Google
Can I have brainliest
Which best describes why heat pumps are reversible?
O They can heat and cool an indoor space.
O They involve a metal expanding or contracting against another.
They combust and can also add coolant.
They allow a piston to move up and down.
Answer:
I would say the first one.
A: They can heat and cool an indoor space.
Explanation:
Reversible heat pumps are capable of providing both heating and cooling processes using the same two environments. When heating, they use the external pipes to absorb heat and release that heat into the indoor environment. When cooling, they absorb the heat from indoors and release that heat into the outside environment.
Answer:
A
Explanation:
natalia is studying a wave produced in her magnetics lab.This wave can move through the empty space in a vacum and carries a lot of energy. What wave is natalia most likley studying
a sound wave
an ocean wave
a gamma ray
an earthquake shock wave
Answer:
gamma wave
Explanation:
sdwdadasadsawd
How long will it take a cyclist to accelerate to 12 m/s starting from rest if he rides with an average acceleration of 1.2 m/s^2?
"using acceleration formula"
Answer:
The cyclist takes 10 seconds to accelerate to 12 m/s.
Explanation:
Constant Acceleration Motion
It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.
Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:
[tex]v_f=v_o+at[/tex]
Solving for t:
[tex]\displaystyle t=\frac{v_f-v_o}{a}[/tex]
The cyclist starts from rest (vo=0) and moves at vf=12 m/s with an acceleration [tex]a=1.2\ m/s^2[/tex].
Calculate the time:
[tex]\displaystyle t=\frac{12-0}{1.2}[/tex]
[tex]\displaystyle t=\frac{12}{1.2}[/tex]
[tex]\boxed{t=10\ sec}[/tex]
The cyclist takes 10 seconds to accelerate to 12 m/s.
2. Who was the first person to"measure gravity?" (Hint: By "measuring gravity, we mean
"measuring the acceleration due to gravity.)
Answer:
The first person to "measure gravity" is sir Issac newton
which part of an atom has a negutive charge ?
A. nucleus
B. electrons
C. Proton
D. Neutron
Answer: electrons
The part of an atom that has a negative charge are electrons. They float around the nucleus at a very fast speed. No one knows how quick they can travel. The answer is electrons.
Hope this helps you!
Answer:
Electrons
Explanation:
Electrons always have a negative charge.
100 POINTS ANSWER FAST PLS
When you are presented with information that is claiming to be scientifically proven, take a careful look at the information and ask yourself the following questions.
Has it been tested and observed numerous times by more than one group of scientists?
Is the study or data documented completely, and does it follow the scientific method?
Does the information contain just the facts and avoid mixing in opinion and assumption?
Is the information presented purely for public knowledge, avoiding being connected with a new product that is for sale?
Does the information come from a third party that is not profiting from the results of the study?
Is this information supported by any other studies that have been conducted by other companies or agencies?
If you are going through space at 30 miles per hour. How fast are you going in km per week? (1 mile = 1.609 km)
Answer:
hi I am Manasi
please subscribe my friends you tube channel Sujal Pathak epic fitness.
place /our live /music / important / has / in / an
Answer:
Music has an important place in our lives.
What is the difference between physical and chemical changes?
Answer:
A
Explanation:
Chemical is a reaction between 2 things signs of that would be a new color, a new substance formed, or any sign of bubbles/smoke etc. while physical changes are done on purpose such as ripping a paper or cutting a log in half! hope that helped
A plane moving at a horizontal velocity of 205 m/s drops a piece of cargo which lands 7500 m below. How high is the cargo after 3.5 seconds?
Answer:
well im not gonna give the full answer but the hint im going to give is tht u can use a calculator
Explanation:
during a hard sneeze your eyes might shut for .50s. if you are driving a car at 70 mi/hr during such a sneeze, how far does the car move during that time
Answer:
About 50 ft.
Explanation:
There is a danger any time you take your eyes off the road. There is also a danger of distraction before and after a sneeze.
Hoped this helped!! <3
Which statements describe the motion of car A and car B? Check all that apply. Car A and car B are both moving toward the origin. Car A and car B are moving in opposite directions. Car A is moving faster than car B. Car A and car B started at the same location. Car A started ahead of car B.
Answer:
✔️Car A and Car B are moving in opposite directions.
✔️Car A is moving faster than Car B.
✔️Car A started ahead of car B.
Explanation:
The position-time graph shows Car A and Car B. The graph reveals that both cars are moving in opposite directions.
Car A shows a positive slope and Car B shows a negative slope.
The graph also shows that Car A started ahead of Car B. It's seen from the graph that Car A started from the origin.
Therefore, we conclude that the correct statements are:
✔️Car A and Car B are moving in opposite directions.
✔️Car A is moving faster than Car B.
✔️Car A started ahead of car B.
Answer:
merry cristmas the other person answered right I checked for you
Explanation:
happy NEW YEARS FINALLY NO MORE 2020
Rasheed ran down the football field at a speed of 7m/s. If he got to the end in 23
seconds, how far did he actually run?
Answer:
The answer is 161 mExplanation:
To find the distance covered we use the formula
distance = velocity × timeFrom the question
velocity = 7 m/s
time = 23 s
We have
distance = 7 × 23
We have the final answer as
161 mHope this helps you
what is the net force on a car stopped at a stop sign? what is the net force on a car moving in a straight line with a constant speed?
7. The English Channel is 35 km wide at its narrowest point, which is where most swimmers attempt to cross north to south from England to France. The current across this portion of the English Channel runs at about 2 km/h east to west.
a. If a swimmer has a relative velocity to the shore of 3 km/h north to south, how long will it take her to cross the 35 km distance?
b. What must be her velocity relative to the water if she has a velocity of 3 km/h north to south relative to the shore?
Answer:
a. 10 hours
b. Approximately 4.03 km/h to shore
Explanation:
The width of the English Channel at the narrowest point = 35 km
The speed of the current across the English Channel across the narrowest point = 2 km/h
a. The relative velocity of the swimmer north to south = 3 km/h
Therefore, the the time it would take the swimmer to swim north to south will be given as follows;
Time = Distance/Velocity = 35 km/(3.5 km/h) =10 hours
The time it would take = 10 hours
It would take 10 hours for her to cross the 35 km distance
b. Given that she has a relative velocity of 3 km/h north to south, we have;
The magnitude of her relative velocity to shore = √((Her relative velocity north to south)² + (The velocity of the English Channel east to west)²)
∴ The magnitude of her relative velocity to shore = √(3.5² + 2²) = (√65)/2 km/h
The magnitude of her relative velocity to shore ≈ 4.03 km/h
HURRY SHOW THE WORK Suzette is 30 meters away from an intersection that is 15 m across going 25 m/s. She sees the light turn yellow. Her car can accelerate at a rate of 4 m/s2. What is the shortest time Suzette can make it across the intersection?
Answer:
The shortest time is 1.2 sec
Explanation:
Given that,
Distance = 30 m
Speed = 25 m/s
Acceleration = 4 m/s²
We need to calculate the shortest time
Using formula of time
[tex]t=\dfrac{d}{v}[/tex]
Where, d = distance
v = velocity
Put the value into the formula
[tex]t=\dfrac{30}{25}[/tex]
[tex]t=1.2\ sec[/tex]
Hence, The shortest time is 1.2 sec.
A liquid has a volume of 0.040 and a mass of 30000 what is the density?
Answer:
0Explanation:
Density = Mass/Volume = 0.040/30000 = 0 I hoped this helps you ☺️☺️Thank you ☺️☺️
A sled covers 20 m from rest and achieves a velocity of 9 m/s under constant acceleration. What is the acceleration of the sled?
Answer:
Explanation:
Givens
d= 20 m
vi = 0
vf = 9 m/s
a = ?
Equation
vf^2 = vi^2 + 2 * a * d
Solution
9^2 = 0 + 2*a*20
81 = 2*a * 20
81 = 40*a
a = 81/40
a = 2.025
What charges attract and what charges repel??
Answer:
The same charges repel and different charges attract
Explanation:
+ and + repel
- and - repel
+ and - attract
- and + attract
SP1b.
During a 5.0 second interval, an object's velocity changes from 25 meters per second
east to 15 meters per second east. Determine the magnitude and direction of the
object's acceleration.
Answer:
2 m/s^2, west
Explanation:
Vf=final velcoity
Vi=initial velocity
t=timw
[tex]a = \frac{vf - vi}{t} [/tex]
=
[tex] \frac{15 - 25}{5} [/tex]
= - 2 m/s^2
The - changes direction and makes it opposite
2 m/s, west
The magnitude of the object acceleration is -2m/s². Since the acceleration of the object is negative, hence the direction will be towards the west
Acceleration is the change in velocity of a body with respect to time. Mathematically;
[tex]a=\frac{v-u}{t}[/tex]
v is the final velocity
u is the initial velocity
t is the time taken;
Given the following parameters
v = 15m/s
u = 25m/s
t = 5.0secs
Substitute the given parameters into the formula to have:
[tex]a=\frac{15-25}{5}\\a=\frac{-10}{5}\\a=-2m/s^2[/tex]
Hence the magnitude of the object acceleration is -2m/s². Since the acceleration of the object is negative, hence the direction will be towards the west.
Learn more here: https://brainly.com/question/24175401
As trends in global warming continue, people are becoming more and more concerned about the possible effects on specific habitats. Coral reefs and polar ice caps are just two of the many endangered ecosystems due to global warming. The monitoring of life on Earth gives rise to career opportunities in the field of A) ecology. B) genetics. C) medicine. D) animal behavior.
Answer
nbbbbbbbbbbbbbbbbbbbsn
Answer:
a ecology
Explanation
L nathaliedog
The mass is 2.0 kg. If the net force is 10.0 N, what is the acceleration?
Answer:
36.165 ft/s^2
Explanation:
Omnicalculator
Given the force exerted on the object with the given mass, the acceleration of the object is 5m/s².
Given the data in the question;
Mass; [tex]m = 2.0kg[/tex]Net Force; [tex]F = 10.0N[/tex]Acceleration; [tex]a =\ ?[/tex]
To determine the acceleration of the mass, we use Newton Second Law of Motion:
[tex]F = m * a[/tex]
Where m is mass of the object and a is the acceleration.
We substitute our given values into the equation and solve for "a"
[tex]10.0N = 2.0kg * a\\\\10.0kg.m/s^2 = 2.0kg * a\\\\a = \frac{ 10.0kg.m/s^2}{2.0kg}\\\\a = 5m/s^2[/tex]
Therefore, given the force exerted on the object with the given mass, the acceleration of the object is 5m/s².
Learn more: https://brainly.com/question/13447525
A gravitational field is generated by any object that has
Answer:
two poles
Explanation:
(50 POINTS IF ABLE TO GET PLZ EXPLAIN HOW TO SOLVE)A tire is rolled down a hill that is 364.37 m long. If the tire has an acceleration of 0.33 m/s2 and it takes 38.68 s to get all the
way down, how fast was the tire first rolled?
A bus is moving at a constant speed of 30 m/s. How many hours will it take to travel 200 miles?
Answer:
200/67.1224321241 = 2.97962981482 hours to travel 200 miles.
Hope this helps :)
Explanation:
First, convert the speed of the bus back to km/h so it makes things easier. The bus is going at an unreasonably high seed of 108 km/h and will usually result in a crash caused by the driver being unable to control the bus at such high speeds, even it won’t topple over at an inclination of 28 degrees for double decker buses (when the bus is stationary. If the prototypes can’t meet this requirement, the prototype fails the safety test and won’t be used as a bus for carrying passengers).
If you ignore that problem, we will start to do the calculation. 108 km/h is equal to 67.1224321241 mph, so it would take 200/67.1224321241 = 2.97962981482 hours to travel 200 miles.
2.97962981482 hours is equal to 2 hours, 58 minutes, 46 seconds, 667 milliseconds, 333 microseconds and 352 nanoseconds.
Here is the list of descending order of time magnitude of smaller than one second for extra information.
Decisecond = 0.1 second (one tenth)
Centisecond = 0.01 second (one hundredth)
Millisecond = 0.001 second (one thousandth)
Microsecond = 0.000001 second (one millionth)
Nanosecond = 0.000000001 second (one billionth)
Picosecond = 0.000000000001 second (one trillionth)
Femtosecond = 0.000000000000001 second (one quadrillionth)
Attosecond = 0.000000000000000001 second (one quintillionth)
Zeptosecond = 0.000000000000000000001 second (one sextillionth)
Yoctosecond = 0.000000000000000000000001 second (one septillionth)
Planck time = 0.00000000000000000000000000000000000000000001 second
Planck time is the smallest measurable time interval in theory.
Convert 76.2 picograms to kilograms.
Answer:
7.62e-14
Have a nice day! :)
Which of the following is the correct unit to measure the current in a radio?
Watts
Volts
Amps
Tons
Answer:
watts
Explanation:
Answer:
its a.) watts
Explanation:
A variable that is not changed.
A) Dependent Variable
B) Inferential Variable
C) Controlled Variable
D) Independent Variable
Answer:
A controlled variable does not change during a experiment
Explanation:
it's c
Answer:
the Answer is c. The Controlled Variable
Hope this helps!! (:
Explanation:
I just took the quiz and got it right!