Answers
Answer:
I think it's C - sorry if I'm wrong
Answer:
B and C
Explanation:
Related Questions
What kind of relationship is there between speed and frequency? And why? (direct, inverse or not related)
Answers
Answer:
Speed and frequency are directly proportional to each other.
Explanation:
The relationship between speed, frequency and wavelength is given by :
[tex]v=f\lambda[/tex]
Where
v is speed
f is frequency
[tex]\lambda[/tex] is wavelength
It can be seen that the relation between the speed and the frequency is direct. It means as the speed increases, the frequency will increase and vice versa.
A car has a mass of 1000 kg and a momentum of 12 000 kg m / s.
What is its kinetic energy?
Answers
Answer:
It's 7.2 x 10^10
I got that because I've put that into the calculator
but just transform it into a standard form = 72000000000
What 4 pieces of information should be included any time you give a written
description of motion?
Answers
Answer:
In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. ... One can also speak of motion of images, shapes, and boundaries.
Explanation:
PLEASE HELP ME, ILL GIVE BRAINLIEST
Which image is a correctly labeled prokaryotic cell?
Answers
Answer:
I believe it's the bottom left :)
Explanation:
Compared to yesterday, you did three times the work in one-third the time. To do so, your power output must have been
a. the same as yesterdays power output
b. one-third yesterdays power output
c. three times yesterdays power output
d. nine times yesterdays power output
Answers
Answer:
D. nine times yesterdays power output
Explanation:
We know that formula for power with work is;
Power = workdone/time taken
Now, you did three times the work in one-third the time yesterday.
This means that;
Work yesterday; W_yesterday = W
Work today; W_today = 3W
Time yesterday; T_yesterday = t
Time today; T_today = t/3
Thus,power today is;
P_today = 3W/(t/3)
P_today = 9(W/t)
Since power output yesterday is W/t, it means you did nine times yesterday's power output.
Answer:
D
Explanation:
Nine times yesterday's power output.
What are two forces that are acting upon you at all times?
Answers
At least two forces are acting on you right now. Assume you're sitting. What are these forces?...
force of air resistance.
force of kinetic friction.
force of static friction.
force of gravity.
force of the chair.
Answer:
gravity and ????
Explanation:
PLS ANSWER!!! TEN POINTS PLUS BRAINLIEST
Low melting points and lack of electrical conductivity are properties of molecular compounds.
Please select the best answer from the choices provided
T
F
Answers
Answer:
True
Explanation:
Low melting points and lack of electrical conductivity ARE properties of molecular compounds.
Let me know if this helps!
Answer:
true
Explanation:
molecular compounds are covalent compounds
Question 3
A mover pushes a box with 400N a distance of 3m in 55s.
a -Calculate the work:
b- Calculate the Power
Answers
Answer:
1200J
21.8Watts
Explanation:
Given parameters:
Force = 400N
Distance = 3m
Time = 55s
Unknown:
Work done = ?
Power = ?
Solution:
Work done is the force applied to move a body through a certain distance.
Power is the rate at which work is done
Work done = Force x distance = 400 x 3 = 1200J
Power = [tex]\frac{work done }{time}[/tex] = [tex]\frac{1200}{55}[/tex] = 21.8Watts
Which kind of cycle is the rock cycle-one with a set path or one with many possible paths? Construct an explanation that describes at least two possible changes to a rock.
Please? thank you
Answers
Answer:
Every rock is somewhere in the rock cycle. The story of the rock is the story of rock cycle: where the rock is now on the rock cycle, the path it took on the rock cycle to get to where it is now, and the path on the rock
Explanation:
This is the answer i put it and it worked if it didn't work for you that's because you lesson or teacher was doing it in a different way.
Answer:
The rock cycle, illustrated in Figure below, depicts how the three major rock types – igneous, sedimentary, and metamorphic - convert from one to another. Arrows connecting the rock types represent the processes that accomplish these changes.
Explanation:
An elevator that the mass 955 kg. The measured tension in the cable at 8950 N
at what rate does the elevator acc upward?
Answers
PLS ANSWER PLSSSS WILL GIVE BRAINLIEST AND 20 POINTS
Molecular compounds that dissolve in water do not conduct electricity because no charged ions are present.
Please select the best answer from the choices provided
T
F
Answers
Answer:
give me brainliest please!! it's F yw!!
Explanation:
Answer:
its true I just took the test the other person is wrong.
Explanation:
1. Find the mass of an object with velocity 25 m/s and with a momentum 95
kg.m/s.
Answers
Answer:
m = 3.8 kg
Explanation:
p = m × v
95 = m × 25
25m = 95
m = 95/25
m = 3.8 kg
A picture hangs evenly from two wires of equal length. The wires each make an angle of 45 degrees with the ceiling. If the mass of the picture is 6 kg, what is the tension force on each wire? Report your answer to 3 decimal places. Do not include the units in your answer or the computer will mark the problem wrong.
Answers
Answer:
41.578N
Explanation:
I need the answer right now please
Answers
Answer:
I believe it is A.
Explanation:
Birds need feathers to fly.
A girl moves from her school to the mall. Assume the distance between the 2 points is 8km. Find the distance and displacement if she comes back to the school
Answers
Answer:
distance=16km
displacement=0
Not a assignment question, just wanna know if scientists know what’s beyond the edge universe
Answers
What is the name of the following atoms?
a) An atom with 3 protons and 4 neutrons:
b) An atom with 2 protons and 4 neutrons:
c) An atom with 4 protons and 4 neutrons:
Answers
Answer:
an atom with 3 protons and 4 neutrons
Explanation:
Which statement is true? A. Inertia causes bodies to slow in their motion, unless they’re pushed by a force. B. Inertia resists changes to the state of motion of a body. C. Inertia decelerates a body. D. Inertia is due to friction.
Answers
Answer:
B. Inertia resists changes to the state of motion of a body.
Explanation:
From the given choices, it is true that inertia resists changes to the state of motion of a body.
Inertia is a form of force solely dependent on the weight of a body. This quantity defines the native ability of a body to resist changes in motion.
According to Newton's first law, the concept of inertia is even more clearly defined.
The law states that "an object will remain in a state of rest or of uniform motion unless it is acted upon by an external force" .
How much force is needed to accelerate a 1400-kg car 2 m/s?
Answers
Answer:
2800N
Explanation:
Given parameters:
Mass of car = 1400kg
Acceleration = 2m/s²
Unknown:
Force on the car = ?
Solution:
To solve this problem, we use Newton's second law of motion.
Force = mass x acceleration
So;
Force = 1400 x 2 = 2800N
xf - (40cm) = (1.0 m/s) (1.8 s) + 1/2 (2.2 m/s^2) (1.8 s)^2
Answers
Answer:
easy stuff
Explanation:
A gardener uses 1600 J of work to push a wheelbarrow for 45 seconds. How
much power does she use?
O A. 35.6 W
O B. 69.7 W
O C. 29.2 W
O D. 43.8 W
Help please!!!!
Answers
Answer:
35.6
Explanation:
given
workdone=1600J
time taken(t)=45 sec
power=w/t
=1600/45
=35.6 watt
A hurdler is 0.635 m from a hurdle when he jumps at 3.22 m/s at a 62.9 degrees angle. How many seconds later does he clear the hurdle? (Hint: it is not necessarily at the highest point in his motion.) (Unit = s) Watch sig figs.
Answers
Answer:
Explanation:
The horizontal distance of the hurdle = .635 m
This distance is covered by hurdler by horizontal component of his velocity
horizontal component of hurdler's initial velocity = 3.22 x cos 62.9
= 1.4668 m /s
displacement in horizontal direction = .635 m , acceleration = 0 as no force acts in horizontal direction .
So time taken to clear the hurdle
= .635 / 1.4668 s
= .433 s .
How does convection create wind patterns at a beach? A. The Sun heats the water and the land equally during the day, but at night heat from the land rises, causing warm air over the water to rush toward shore. B. Electromagnetic waves from the Sun are absorbed in Earth's atmosphere, which is warmed and then reemits the heat as electromagnetic waves. C. Increasing temperature means greater kinetic energy, and the kinetic energy shows itself as movement of the air molecules. D. During the day, air over the warm land heats up and rises, while cooler air that was over the water is drawn in to shore to replace it. SUBMIT
Answers
Answer:
D. During the day, air over the warm land heats up and rises, while cooler air that was over the water is drawn in to shore to replace it.
Explanation:
Convection creates wind patterns at a beach by the force of land and sea breeze which are different wind patterns that move air masses.
Convection is a form of heat transfer that occur mainly in fluids such as gases and in liquids.
During the day, the air over the land is warmed. The land is a good conductor heat better than the ocean. This air masses rises and move towards the ocean. The colder air from the ocean moves landward to replace this air mass.
As the cold air gets warmer at land, it rises and move ocean-ward again.
A kicked soccer ball will eventually stop rolling, due to the grass
Answers
Answer: 1st law
Explanation:
If the displacement of a horizontal mass-spring system was doubled, the elastic potential energy in the system would change by a factor of
Answers
Answer:
K'=4K
Explanation:
The electric potential energy is given by :
[tex]E=\dfrac{1}{2}kx^2[/tex]
Where
k is spring constant
x is compression or extension in the spring
If the displacement of a horizontal mass-spring system is doubled, x'= 2x
New elastic potential energy :
[tex]E'=\dfrac{1}{2}kx'^2\\\\E'=\dfrac{1}{2}k(2x)^2\\\\=\dfrac{1}{2}k\times 4x^2\\\\K'=4\times \dfrac{1}{2}kx^2\\\\K'=4K[/tex]
So, new elastic potential energy 4 times the initial elastic potential energy.
Why is the terminal velocity of a 1 g lead pellet higher than that of a 1 g piece of paper?
Answers
A piece of ice absorbs heat and melts. Which statement best describes the
changes in the ice as it melts?
A. The potential energy of the particles increases as intermolecular
forces are overcome.
B. The potential energy of the particles increases as the temperature
increases.
C. The kinetic energy of the particles increases as the temperature
increases.
D. The kinetic energy of the particles increases as intermolecular
forces are overcome.
Answers
Answer:
a
Explanation:
a p ex
The potential energy of the particles increases as intermolecular forces are overcome.
When a substance such as ice melts, its temperature increases. Water molecules become less orderly and they spread apart.
What is potential energy ?"Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors." An object can store energy as the result of its position. For example, the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly, a drawn bow is able to store energy as the result of its position.
Know more about potential energy here
https://brainly.com/question/24284560
#SPJ2
Select all that apply.
Check all that characteristics of zebra mussels.
Question 2 options:
the size of a hand
lives in cool water
can attach to any surface
filter feeders
Answers
Answer: 1 and 3
Explanation:
What can increase the gravitational potential energy of a object
Answers
Answer:
Increase in mass and height
Explanation:
The gravitational potential energy of an object can increase if the mass and height of object is increased.
Gravitational potential energy is the energy due to the position of a body.
It is expressed as:
Gravitational potential energy = mass x acceleration due gravity x height
Increasing mass and height will cause an increase in gravitational potential energy.
QUICK ITS DUE IN 6 MINUTES. create a scenario that applies the 3 laws of motion. Explain in complete sentences how each law if demonstrated
Answers
Answer:
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.