Answer:
Ground state
Ground state should be the lowest energy
Determine the force required to move a block if the coefficient of static friction of one block and the floor is 0.35 and the coefficient of the static friction between 2 boxes is 0.25
Answer:
32.5
Explanation:
Choose the normal force acting between the object and the ground. Let's assume a normal force of 250 N .
Determine the friction coefficient. ...
Multiply these values by each other: (250 N) * 0.13 = 32.5 N .
You just found the force of friction!
A roller is pushed with a force of 100 N along its handle, which is at an angle of 60 degrees with the horizontal. Find the work done in moving it through 20 m?
Answer:
1 kJ
Explanation:
By definition of work, [tex]W = \vec F \cdot \vec x = |\vec F| |\vec x| cos\angle Fx[/tex]. Let's replace the values: [tex]W = 100N\cdot 20m \cdot cos 60 = 1000 J[/tex]
How do you find out the missing masses in a balloon
Answer:
How do you find out the missing masses in a balloon?
Well, actually you can't find the missing masses in a balloon. Why?
Because the mass of the mass of balloon, it can't see the mass of it, it only see if it the balloon is deflated or inflated.
Explanation:
Hope it helps
#LetsStudy
2. Why do you think a light stick would be a good light source around flammable material?
Answer:
because it doesnt contain fire
an amusement park ride has two identical carriages that revolve around the center of the ride’s axle, as shown in the figure. both carts travel at a constant tangential speed at all points along the circular path. at what position is the total mechanical energy of the cart-cart-earth system at its maximum value?
The principle of conservation of energy allows to find the result for the mechanical energy of the system is:
Mechanical energy is conserved at all points, therefore at all points it has the same value.
Mechanical energy is defined by the sum of the kinetic energy and the potential energies.
Em = K + U
In the principle of energy conservation, it establishes that energy cannot be created or destroyed, it is only transformed, in the case of no friction, mechanized energy is conserved at all points.
They indicate that the system is rotating, which is why it is subjected to a force that expends its energy in changing the direction of the speed to keep the system in rotation, so the speed of the system remains constant.
Em = K = ½ I w²
Consequently, using the principle of conservation of energy we can find the result for the mechanical energy of the system is:
Mechanical energy is conserved at all points, therefore at all points it has the same value.
Learn more here: brainly.com/question/1517221
100 POINTS!! PLEASE DONT ANSWER UNLESS YOU KNOW BOTH ANSWERS PLEASE.
If a bike hits a rock and suddenly stops, the rider flies over the handlebars due to ________.
A. absolute zero B. displacement C. inertia D. electromagnetic spectrum
During a track meet, Sarah ran 400m in 80s. What was her average speed? (Remember s=d/t)
A. 5 m/s
B. 20 m/s
C. 15 m/s
D. 15 mph
Answer:
1. is B and 2. is A
Explanation:
Answer:
1. Displacement
2. 5 m/s 400 ÷ 80 = 5
Explanation:
The transfer of the minerals of the earth to living organisms and then back to the earth again is called a:
cycle
niche
community
chain
A cycle is a series of changes that are continuously repeated, where each part understandably relates to other parts.
ANSWER MADE BY AN AI
Answer: cycle
Explanation:
the amount of force applied per given area is
Answer:
Explanation: The amount of force applied per given area is pressure...(F/A)
SI unit=Pascals(Newtons/m^2)
If you added enough ropes and pulleys to lift any size mass would it be possible to never have to apply a force to move your mass? Why or Why Not? Explain your answer using scientific terms we have been learning.
pls help!!
Answer:
we have to apply force to move something things wants to save their position and if we want to change it
we have too apply force
Answer:
we have to apply
them to have a answer
Please if you can give an explanation and not just the answer.
Answer:
what you perfect Wuman in the world just try and try I wish you get it just trust me I'm a Wuman and man
calculate the mass fo an unknown solid if its density is 1.6 g/cm^3 and it has a length of 7.5 cm, a height of 12.5 cm, and a width of 2.2 cm
Answer:
Density = Mass / Volume
Mass = Density * volume = 1.6 gm/cm^3 * (7.5 * 12.5 * 2.2) cm^3
Mass = 1.6 gm/cm^3 * (206 cm^3) = 330 gm
2. Elements in a family have the same
A. total number of electrons
B. protons and neutrons
C. number of valence electrons
Answer:
Elements in a family have the same
Ans C. number of valence electrons
A 1 kg cart has 5 J of work done on it. If the initial velocity of the cart was 3 m/s, what is the final velocity of the cart?
A.5.6
B.3.1
C.3.73
D.4.4J
Answer:
D: 4.4m/s
Explanation:
From a known theorem the total work on a body is equal of the variation of kinetic energy:
[tex]W = \Delta K = K_f-K_i = \frac12 mv_f^2 - \frac12 m v_i^2[/tex]
Taking the first and last step in the chain of equalities and replacing the values we have, we get:
[tex]5 = \frac12(1)v_f^2 - \frac12(1)(3)^2\\10= v_f^2 -9 \rightarrow v_f^2 = 19 \rightarrow v_f=\sqrt19 \approx 4.4m/s[/tex]
Data Set B: help plz
Answer: hey buddy their is no image for me sorry man
Explanation:
6. A squirrel performs 20 J of work climbing a tree in 5 seconds. What
was the squirrel's power?
HELPPPPPP!!!!
A bird flies at a speed of 9.0 m/s in still air. If the bird flies with a 12 m/s
crosswind blowing, how fast does it travel relative to the ground?
If a bird flies at a speed of 9.0 meters / second in still air. If the bird flies with 12 meters / second crosswind blowing, the bird's speed relative to the ground would be 15 meters/second.
What is a vector quantity?The quantities that contain the magnitude of the quantities along with the direction are known as the vector quantities.
As given in the problem If a bird flies at a speed of 9.0 meters / second in still air. If the bird flies with 12 meters / second crosswind blowing,
The speed of the bird relative to the ground = √(9² + 12²)
=√225
=15 meters / second
Thus, the speed of the bird relative to the ground would be 15 meters/second.
To learn more about the vector quantity here, refer to the link;
https://brainly.com/question/15516363
#SPJ2
7. Sally's mass on Earth is 50 kg. What is her weight on the moon?
The acceleration due to gravity she experiences on the moon is 1.652
a. 490 N
b. 8.3 kg
c. 50 kg
d. 82.6 N
Answer:
82.6
Explanation:
What do all waves carry
Answer:
Light, heat, radio, and similar types of energy
can you give me brainliest
Explanation:
Light, heat, radio, and similar types of energy are carried by a variety of waves in the ELECTROMAGNETIC SPECTRUM. Some energy waves need a medium, such as water or air, through which to travel.
A skydiver jumps from an airplane that is moving at 50 meters per second at a height of 1,000 meters what describes the skydivers energy immediately after leaving the air plane
Answer:
11060M Joules, where M is the mass of the diver in kg
Explanation:
Mass of the skydiver missing, we're assuming it's M.
It's total energy is the sum of the contribution of his kinetic energy (K)- since he's moving at 50 m/s, and it's potential energy (U), since he's subject to earth gravity.
Energy is the sum of the two, so [tex]E = K+U= \frac 12 M v^2 + Mgh = M (\frac 12 \cdot 50^2 + 9.81\cdot 1000) = M ( 1250 + 9810) = 11060\cdot M[/tex]
Mechanical waves form when a source of energy causes a medium to what
Answer:
Ripple in water is a surface wave. A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission —the material—is limited.
Find a unit vector perpendicular to the vectors given A=4i+2j+2k and B=4i-4j+8k.
The cross product of A and B is perpendicular to both A and B.
A × B = (4i + 2j + 2k) × (4i - 4j + 8k)
A × B = 16 (i × i) - 16 (i × j) + 32 (i × k) + 8 (j × i) - 8 (j × j) + 16 (j × k) + 8 (k × i) - 8 (k × j) + 16 (k × k)
A × B = -16 (i × j) - 32 (k × i) - 8 (i × j) + 16 (j × k) + 8 (k × i) + 8 (j × k)
A × B = -16k - 32j - 8k + 16i + 8j + 8i
A × B = 24i - 24j - 24k
The magnitude of A × B is
||A × B|| = 24 ||i - j - k|| = 24√3
Dividing A × B by its magnitude gives a unit vector,
(A × B)/||A × B|| = 1/√3 (i - j - k)
I need help! Use your observations to support or reject this claim "If the samples are at the same temperature, the amount of thermal energy in a sample depends on the type of material and the amount of the material" Its the Phet Lab
Answer:
i cannot see the the claim
Explanation:
the mass of a lump of gold is constant everywhere but its weight is not explain these
Answer:
due to variations of the force of gravity from place to place
Explanation:
at different places we have different force of gravity...that's why weight change but mass never change
why is the cooling system in a nuclear power station important? what will happen if the system malfunction?
3 points
A science teacher is going to make a Newton's Cradle using students on
swings. *
A
B C
Which of the following statements is true?
Answer:
When a ball on one end of the cradle is pulled away from the others and then released, it strikes the next ball in the cradle, which remains.
So it will be D
Explanation: Hope this helps :)
. A small toy car having 300 grams of mass and going straight with an initial velocity of 13 m/s. When the toy car collides with an obstacle, a resistive force of 4 N acts upon it. The speed of the toy car reduced and reached 8 m/s. Draw its free body diagram and then find the time for the toy car to be into rest position?
The free-body diagram is attached in the image below. The time for the toy car to be in rest position is 0.6 s
From the given information:
The mass of the toy car = 300 g = 0.3 kgThe initial velocity (u) of the car = 13 m/sThe resistive force F_r acting on the car = 4 NThe speed of the car (v) = 8 m/sA force is regarded as a push that causes an alteration in motion of an object within a specified distance. It is usually expressed by the formula:
Force = mass × acceleration∴
acceleration = Force/massacceleration = (4 / 0.3) m/s²acceleration = 13.33 m/s²Using the first equation of motion for the time to bring the car to rest from it reduced speed of 8 m/s;
v' = v + atsince the final speed to bring the car in rest position is (0), then:
0 = 8 - 13.33(t)
13.33(t) = 8
t = 8/13.33
t = 0.6 seconds
Learn more about the equation of motion here:
https://brainly.com/question/19959461?referrer=searchResults
An object has an acceleration of 18.0 m/s/s. If the net force
was tripled and the mass were halved, then the new
acceleration would be m/s/s.
Answer:
Explanation:
F = ma
net force equals mass times acceleration
lets put some test variables just to experiment.
36 = 2 (18)
now do what the question says
108 = 1 (a)
acceleration would be 108 meters per second squared
You place a small sphere with a net charge of 5 space x space 10 to the power of negative 6 end exponent space C at one corner of a square that measures 5 m on each side. What is the magnitude of the electric field at the opposite corner of the square?
900 N/C
9,000 N/C
450 N/C
4,500 N/C
A horse is going 70 km/h for 2 min. If it traveled 4km then what was the acceleration?
Answer:
0.2315 m/s2 (meters per second squared)
Explanation:
initial speed = 70km/h
distance = 4km
time = 2mins
acceleration = 0.2315 m/s2
write a relations between wavelength frequency and velocity for a sound wave
Answer:
[tex]{ \boxed{ \mathfrak{answer : \: { \rm{v = f \lambda}}}}}[/tex]
Explanation:
v is the velocityf is frequencylambda is wavelength[tex]{ \underline{ \mathfrak{ \green{Good \: grace}} \: \:⚜ \: \: { \blue{ \mathfrak{Good \: God}}}}}[/tex]
