I need the answer to this question what has the student plotted on the vertical axis?
Answer:
The correct option is D
Explanation:
In trying to achieve what the student wanted to see, which is to see the relationship between the weight the cord can hold and how long the cord will stretch. Since the origin of the graph is from zero, the value plotted on the vertical axis would be just the length caused by each weights. Thus, the original length would have to be subtracted from the measured length to determine the actual length caused by the weight added to the cord.
A 34.75 kg boulder is rolling down a hill. If, at one moment, the boulder has a momentum of 239.5 kg ⋅ m/s, what is its velocity at that time?
Answer:
Velocity = 6.89 m/s
Explanation:
The equation for momentum: [tex]Momentum=(Mass)(Velocity)[/tex]
Substitute the given information into the equation and solve for velocity.
[tex]239.5=34.75(Velocity)\\\frac{239.5}{34.75}=\frac{34.75(Velocity)}{34.75\\}\\6.89=Velocity[/tex]
What is potential difference also called?
In this activity, you will analyze the motion of a cart being pulled up an inclined plane at a constant speed. The angle of the incline can be modified by 10 degrees increments between the values of 30 degrees and 90 degrees. Three different masses can be selected - 2.0kg, 3.0kg, and 4.0kg in each simulation the cart is pull d to the same height - 1.0 meter above the original starting position. For each simulation, the force that must be applied is reported on the screen. The displacement of the cart can be measured using the cm-ruler that is displayed for each trial. Can some help me
Answer:
darn this too much lololpop
Shuffling your feet across the floor as you walk is an example of
A) charging by friction
B) induction
C) static discharge
D) conduction
E) none of the above
Answer:
i think a
Explanation:
Shuffling your feet across the floor as you walk is an example of charging by friction. The correct option is A.
What is friction?The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction.
There are various kinds of friction: Two solid surfaces in touch are opposed to one another's relative lateral motion by dry friction.
Frictional force is the force produced when two surfaces slide against and touch each other.
The surface texture and amount of force needing them together have the biggest an impact on these forces. The amount of frictional force is influenced by the object's position and angle.
As an illustration of how charge is transferred via friction, consider walking over a carpet.
Thus, the correct option is A.
For more details regarding friction, visit:
https://brainly.com/question/13000653
#SPJ5
A boy rubs two balloons against his sweater. One balloon acquires a charge of 3.0 E -6 C. The other balloon acquires a charge of 2.5 E -7 C. If the balloons are positioned 1 cm apart, what is the electrical force between them?
Answer:
67.5 N
Explanation:
From the question given above, the following data were obtained:
Charge 1 (q₁) = 3.0×10¯⁶ C
Charge 2 (q₂) = 2.5×10¯⁷ C
Distance apart (r) = 1 cm
Force (F) =?
Next, we shall convert 1 cm to m. This can be obtained as follow:
100 cm = 1 m
Therefore,
1 cm = 1 cm × 1 m / 100 cm
1 cm = 0.01 m
Thus, 1 cm is equivalent 0.01 m.
Finally, we shall determine the electrical force between the two points charges as follow:
Charge 1 (q₁) = 3.0×10¯⁶ C
Charge 2 (q₂) = 2.5×10¯⁷ C
Distance apart (r) = 0.01 m
Electrical constant (K) = 9×10⁹ Nm²C¯²
Force (F) =?
F = Kq₁q₂ / r²
F = 9×10⁹ × 3.0×10¯⁶ × 2.5×10¯⁷ / (0.01)²
F = 0.00675 / 0.0001
F = 67.5 N
Therefore, the electrical force between the two points charges is 67.5 N
pls someone help me
Answer:
Can't see the pic
Explanation:
all 3 of these examples (Volt, Newton, Tesla) are units that come from other metric units true or false?
Answer:
False
Explanation:
because Only Volt and Newton are units come from metric units, however, the Tesla is not come from Metric units.
Select the correct answer.
Which diagram represents an object in equilibrium?
ОА.
applied
force = 20 N
force due to
friction = 15 N
OB.
applied
force = 20 N
force due to
friction = 20 N
OC.
applied
force = 15 N
force due to
friction = 25 N
OD.
applied
force = 30 N
force due to
friction = 20 N
ОЕ.
applied
force = 30 N
force due to
friction = 15 N
Reset
Next
My
Answer:
B
Explanation:
The force and friction cancel each other.
20N - 20N = 0N acting on the object.
Which of the following is an example of kinetic energy?
athlete running in a race
battery charging in a garage
apple hanging from a tree
water boiling on a stove
Answer:
A. Athlete running in a race
Explanation:
Kinetic energy haves something to do with movement
PLEASE HURRY What is "a section of a chromosome that typically contains the code for a particular protein, which determines a specific trait" called?
heterozygous
genetics
species
gene
Answer:
It is a gene!!
Explanation:
It is because RNA is referred to as a gene. Genes are contained in chromosones.
Please help as fast you can
Answer:
d a
Explanation:
State the lows of reflection
Answer:
The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
Explanation:
Answer: The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
Tor F. When we carry an object across the room without lifting it or setting it down, we
don't do any physical work on it.
Answer:
True
Explanation:
Study guide answer key
What is osomsis and diffusion
Answer:
Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. ... Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.
What is the momentum of a 120 pound bicyclist that is traveling at 25 mph?
What is the kinetic energy of a 74.0 kg man traveling in a car at a speed of 52.0 m/s?
decreases, gravitational, increases, kinetic, potential, thermal
A car driving along a road has energy in its _______ store. If the car drive faster this store_____. If the car drives up a hill, energy is transferred to its ____ store. If the care brakes, the kinetic store _____.
A 3.0 g bullet traveling at a speed of 400 m/s enters a tree and exits the other side with a speed of 200 m/s. Where did the bullet's lost KE go, and what was the energy transferred?
Answer:
1800J
Explanation:
Step one:
given data
mass of bullet m= 3g= 0.03kg
initial velocity u = 400m/s
final velocity v= 200 m/s
Step two:
1.The bullet's lost kinetic energy went inside the tree.
2. The energy transferred is computed as
= initial KE- KE final
Initial KE= 1/2mu^2
Initial KE= 1/2*0.03*400^2
Initial KE= 1/2*0.03*160000
Initial KE= 1/2*4800
Initial KE= 2400J
KE final= 1/2mv^2
KE final= 1/2*0.03*200^2
KE final= 1/2*0.03*40000
KE final= 1/2*1200
KE final= 600J
KE transferred = 2400-600
KE transferred= 1800J
Help me please with science
Answer:its b
Explanation:
friction that resists the motion between two objects that are not moving
Answer:
static friction is the friction that resists the motion between two objects that are not moving
A golfer hits a golf ball upwards at an angle. We can ignore air resistance on the ball.
Which diagram best describes the velocity vectors and trajectory of the golf ball's motion?
Answer:
Check the diagram from the photo
Explanation:
What conclusion can you draw from the information shown in the graph?
O A. Global temperatures are increasing due to human activity.
B. Earth is currently experiencing a period of global warming.
O C. Temperature is the only aspect of climate that is changing.
O D. Global temperatures are increasing due to natural causes.
Answer:
The correct option is;
B. Earth is currently experiencing a period of global warming
Explanation:
From the graph, we have;
1) From 1880 to 1900 the temperature anomaly (°C) averages a few degrees below the average surface temperature
2) The decrease below the average surface temperature is larger from 1900 to 1920
3) The surface temperature rises more steadily from below average to a little above average from 1920 to 1940
4) Between 1940 to 1980, the temperature hovers around the average surface temperature
5) The Earth's surface temperature is more or less steadily increasing from 1960 to present
Therefore, the Earth is experiencing a period of global warming
A man standing on top of a 30 m tall building throws a brick downwards with a velocity of 12 m/s. Determine the speed of the brick just before it hits the ground.
Answer:
27.1m/s
Explanation:
Given parameters:
Height of the building = 30m
Initial velocity = 12m/s
Unknown:
Final velocity = ?
Solution:
We apply one of the kinematics equation to solve this problem:
v² = u² + 2gh
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity
h is the height
v² = 12² + (2 x 9.8 x 30)
v = 27.1m/s
Using the information given, find the Atomic Mass of the unknown element: 12 PROTONS, 12 NEUTRONS, 12 ELECTRONS
Answer:
A. 12
Explanation:
Mutations in sections of DNA can be caused by all of the following EXCEPT
Question 2 options:
Viruses
Chemicals
Ultraviolet Radiation
Sexual Reproduction
Answer:
sexual reproduction
Explanation:
What happens when two sound waves meet in destructive interference?
sorry i did not mean to answer
in 1965, two scientists made a surprising discovery. they detected a faint microwave radiation signal coming from all over the universe
what is this microwave radiation?i’ll give brainlist
Answer: someone took down my answer I don’t know why when I took this test and got it right but the answer is C like the other person said.
Explanation:
The microwave radiation referred to in this context is radiation that was released as matter formed in the early universe. Therefore option A is correct.
Microwave radiation, also known as cosmic microwave background radiation (CMB), is a faint radiation that permeates throughout the universe.
It is considered to be the remnants of the thermal radiation released shortly after the Big Bang, during a phase called recombination. At this time, the universe transitioned from a hot, dense plasma to a state where neutral atoms could form, allowing photons to travel freely.
The cosmic microwave background radiation is isotropic, meaning it is uniformly distributed in all directions, and it has a characteristic temperature of approximately 2.7 Kelvin (-270.45 degrees Celsius).
It was first detected in 1965 by Arno Penzias and Robert Wilson, who were awarded the Nobel Prize in Physics for their discovery.
The presence of cosmic microwave background radiation provides strong evidence for the Big Bang theory and helps to support the understanding of the early universe's formation and evolution.
It serves as an important tool for studying cosmology and provides insights into the structure, age, and composition of the universe.
Know more about CMB:
https://brainly.com/question/30416668
#SPJ4
Energy that depends upon object mass and object height.
Answer:
That is Gravitational potential energy.
6. In baseball, a fastball takes about 1/2 second to reach the plate. Assuming that such a pitch is thrown horizontally, compare the distance the ball falls in the first 1/4 second with the distance it falls in the second 1/4 second.
Answer:
The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second
Explanation:
Horizontal Launch
When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.
To calculate the vertical distance (y) traveled by the object in terms of the time (t) we use:
[tex]\displaystyle y=\frac{g.t^2}{2}[/tex]
The fastball is thrown horizontally. The distance the ball falls in t=1/4 seconds = 0.25 seconds, is:
[tex]\displaystyle y_1=\frac{9.8*0.25^2}{2}[/tex]
[tex]\displaystyle y_1=0.30625\ m[/tex]
The distance the ball falls in t=1/2 seconds = 0.5 seconds is:
[tex]\displaystyle y_2=\frac{9.8*0.5^2}{2}[/tex]
[tex]\displaystyle y_2=1.225\ m[/tex]
The distance it falls in the second 1/4 second is:
[tex]y_2-y_1=1.225\ m-0.30625\ m[/tex]
[tex]y_2-y_1=0.91875\ m[/tex]
The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second