Answer:
brainliest please
Explanation:
The answer would be static electricity
Which best describes the particles in a solid? Multiple choice question. cross out A) close together and moving freely cross out B) far apart and moving freely cross out C) close together and vibrating in place cross out D) far apart and vibrating in place
Answer:
C) close together and vibrating in place cross out
Explanation:
Solid, liquid and gas are the three types of matter. In solid, the molecules are tightly packed together. The intermolecular forces is very strong and the particles do not move from one place to another. The particles are so closely packed that they move at their own place and vibrate forth and back. The motion of the movement of the particle and its force are the two factors that help in determining the state of matter.
The time of flight for an object thrown from the rooftop of a tall building is 6.2 seconds. In terms of the initial launch velocity v,
and the angle of launch o, what equation gives you the maximum displacement of the object?
Answer:
B . x= v*cos ∅* 6.2
Explanation:
Time of flight of a projectile motion is the time taken by the object to reach the surface from when it was projected.
In this case ;
Initial launch velocity = v
Angle of launch is =∅
Time of flight = 6.2 seconds
The formula for time of flight is;
T= 2*v*sin∅ / g
At time t the displacement components for x and y are;
x= v* t * cos ∅ ----------------i
and
y =u* t * sin ∅ - 1/2 g*t² ------------ii
Taking equation i for displacement of the object in the x component
x = v* t* cos ∅
x = v * cos ∅ * 6.2
x = 6.2* v * cos ∅
Urgent Important!!
Many medications have a warning to avoid driving because.
A. they haven't been scientifically tested yet.
B. they have been proven to cause drowsiness.
C. they want to cover all their bases.
Answer:
B) they have been proven to cause drowsiness
Explanation:
B is the only answer that makes sense, as the other answers do not make sense. All medications are scientifically tested before they can be used by someone. Covering their bases would show negligence and is bad.
Hope this helps!
PS, this is biology or medical, not physics.
isotopes of an element differ in the composition of the nucleus. The varying numbers of ____ cause the _____ of each isotope to also vary.
Answer:
The answer is neutrons and mass number
Explanation:
Answer:
I have this same question on usa test prep the answer is nuetrons and mass number
Explanation:
what is damping??????
Answer:
the picture is the definition
if earth were a ping pong what size ball would jupiter be
Answer:
a large beach ball
Explanation:
Hello boys and girls plz help me with this question ASAP
Thank you so much
Answer:
Blue
Explanation:
The colors of the rainbow are known by the acronym; ROYGBIV.
This is;
Red, Orange, Yellow, Green, Blue, Indigo, and Violet.
From research, their respective wavelengths on the average are;
Red: 665 nm
Orange; 630 nm
Yellow; 600 nm
Green; 550 nm
Blue; 470 nm
Indigo; from 445nm to 464 nm
Violet; less than 400 nm
This means that from Red to Violet in that order, wavelength is decreasing in a descending order.
Now in refraction, the light with shortest wavelength will be bent the most while that with longest wavelength will be bent the least.
Thus, violet bends the most.
However, violet is not included in the options. So the next one that will bend the most after violet among the options given is Blue.
Which objects will likely have the greatest gravitational force between them?
a. Two tennis balls that are near each other
b. Two soccer balls that are near each other
c. Two tennis balls that are touching each other d. Two soccer balls that are touching each other
Answer:
d. Two soccer balls that are touching each other
Explanation:
Let [tex]m_1[/tex] be the mass of a tennis ball, [tex]m_2[/tex] is the mass of a soccer ball.
As the mass of a soccer ball is more than the mass of a tennis ball, so
[tex]m_2 > m_1[/tex]
Let [tex]d_1[/tex] be the distance between the centers of both the balls near each other and [tex]d_2[/tex] be the distance between the centers of both the balls touching each other.
So, [tex]d_2 > d_1[/tex]
The gravitational force, F, between the two objects having masses M and m and separated by distance d is
[tex]F=\frac{GMm}{d^2}[/tex]
Where G is the universal gravitational constant.
As, the gravitational force is directly proportional to the product of both the masses and inversely proportional to the square of the distance between them, so selecting the larger mass ([tex]m_2[/tex], soccer ball) separated by a lesser distance ([tex]d_2[/tex], touching) to get more gravitational force.
Therefore, there will be a larger gravitational force between them when two soccer balls touching each other.
Hence, option (d) is correct.
Answer:
Two soccer balls that are touching each other
Explanation:
I got it right on the test.
Daniel steps on the gas pedal of his car, and the engine increases its performance from zero to 2700 rpms (rotations per minute). What are the frequency and period?
[Hint: frequency is cycles per second]
Explanation:
The frequency of the engine is given by :
[tex]f=\dfrac{rpm}{60}[/tex]
We have, the engine increases its performance from zero to 2700 rpms.
Frequency,
[tex]f=\dfrac{2700}{60}\ \text{cycles per second}\\\\f=45\ \text{cycles per second}[/tex]
The time period of the engine is given by :
T = f/f
So,
[tex]T=\dfrac{1}{45}\ s\\\\T=0.023\ s[/tex]
Hence, the required frequency and the period is 45 cycles/second and 0.023 seconds respectively.
Help with 15 - 17 please!
Answer:
15 - 17 is -2
Explanation:
what would the force be on a 14.5 kg object that was accelerating 2.7 m/s^2
Answer:
39.15 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 14.5 × 2.7
We have the final answer as
39.15 NHope this helps you
X rays are used in hospital to locate in the patients bones.If the x rays of wavelength of 2×10 to the power negative nine m travel at a speed of 3×10 to the power eight m/s in air, what will be it's frequency?
Answer:1.5×10 to the power of 17(unit-Hertz/H)
Explanation:V=F×Wavelength
F=V/Wavelength=3×10 to power/2×10 to power of -9=1.5×10 to power of 17
When are force and acceleration at their minimum in simple harmonic motion?
Answer:
Since F = M a force and acceleration both have maximum and minimum values at the same point in their motion.
Also, F = - k x where x is the extension of the displacement that creates the acceleration.
Since, there is no force acting on the object at the midpoint of the motion, then F = - k x = 0 and there is no acceleration.
Likewise, at maximum extension F = - k x is a maximum and both the force and acceleration have their maximum values at maximum extension.
which one thank youuu!
Answer:
the answer is 10n to the left. option B
Explanation:
when two sides are parallel to each other you subtract
for example
f1+f2=R2
30n-20n=10n
please help
1. Describe the difference between an "object" and a "system"
2.Give an example of a system with at least three objects.
3. What is meant by "the energy of the system?"
4. Give an example of energy moving from one object in a system to another object in the system.
Answer:
A class is a blueprint from which you can create the instance, i.e., objects. An object is the instance of the class, which helps programmers to use variables and methods from inside the class. A class is used to bind data as well as methods together as a single unit. Object acts like a variable of the class.include transport systems; solar systems; telephone systems; the Dewey Decimal System; weapons systems; ecological systems; space systems; etc. Indeed, it seems there is almost no end to the use of the word “system” in today's society.One of the thermodynamic properties of a system is its internal energy, E, which is the sum of the kinetic and potential energies of the particles that form the system. The internal energy of a system can be understood by examining the simplest possible system: an ideal gas.A swinging pirate ship ride at a theme park. Kinetic energy is transferred into gravitational potential energy.A boat being accelerated by the force of the engine. The boat pushes through the water as chemical energy is transferred into kinetic energy.
Bringing water to the boil in an electric kettle.
Which 2 statements correctly describes the theory of plate tectonics?
Answer:
B and D
Explanation:
If it has letters.
Which of the following statements regarding orbits is true?
A. The Sun and a planet are at the two foci of an orbit.
B. In an orbit, the satellite and the central body are the two foci of the
ellipse.
C. In an elliptical orbit, there is one focus and the satellite is located
there.
D. The central body is located at one focus of the ellipse describing
the orbit
SUBMIT
Answer:
the orbit of the a planet has an elliptical shape with the sun at the focus
Explanation:
The solar system is described to be elliptical including the central body sun and the planets are revolving around. The central body is located at one focus of the ellipse describing the orbit.
What is solar system?Solar system contains sun and eight planets revolving around sun. Planets like earth, mars, mercury etc. are revolving around sun in their own orbits. Every planet's orbit around the Sun is an ellipse, according to Kepler's First Law.
The orbital ellipse's central focus is always where the sun is. The sun is centered. The planet's orbit is an ellipse, thus as it revolves around its axis, the distance from the sun changes continuously.
Two focal points, or foci, make up an ellipse. The overall distance of a planet from these 2 focus points is constant during its orbit. Additionally, an ellipse has two symmetry lines.
The primary axis is the longest line. The minor axis is the shorter line. Sun is located at one end of the orbit. Thus, option D is correct.
To find more on elliptical orbits, refer here:
https://brainly.com/question/18283031
#SPJ5
Please Help Me!!!!!!!
Answer:
Ice is less dense than water
Explanation:This is due to ice's density being less than liquid water's density.It happens that the lattice arrangement allows water molecules to be more spread out than in a liquid, and, thus, ice is less dense than water.
So this answer is A
What type of system is best used to observe conservation of mass because all of the mass stays in one place?
a balanced system
a sideways system
a closed system
an open system
Answer:
trump
Explanation:
yee hawww
Answer:I think a closed system
Explanation:
True or false: A cannonball fired faster will land sooner than a cannonball fired with less speed.
Answer:
False
Explanation: The cannonball that is faster has more force and energy therefore go longer and the cannonball with less speed will fall sooner with the lack of force and energy to carry it.
atoms giving up valence electrons indicates that an ionic bond is present ture or false
Answer: true
Explanation:
Lots of points! Will mark brainliest!!
1. How much force will be needed to move a 110kg box across the floor if the coefficient of friction is
0.40?
2. If the coefficient of friction is lowered to 0.25, but the same amount of force was applied, what would the acceleration of the object in problem #1 be?
Answer:
1. 431.2newtons
2. 1.47meters per second squared
Explanation:
f=ma
force of friction=normal force×coefficient of friction
normal force = mass× gravity
1.
nf=110kg × 9.8m/s^2 = 1078newtons
f=nf×cf
f=1078×.4=431.2
1
f=1078×.25=269.5
431.2-269.5=161.7
161.7=110kg× a
a=1.47
Identify the cause of temperature fluctuations recorded in both New York and Los Angeles
Answer:
In New York City, weather observations have been taken in Central Park dating back to 1868. In the 150 years of records the city’s temperature extremes span 121 degrees ranging from a high of 106 on July 9, 1936 to a low of minus 15 on February 9, 1934. In Los Angeles temperatures have been taken at a downtown location since 1877 and extremes there range from a high of 113 on September 27, 2010 to a low of 28 degrees recorded on three occasions, most recently January 4, 1949, an 85-degreee range.
Explanation:
'm pretty sure that's the answer to your question.
10.0 points
When you drop a 0.38 kg apple, Earth exerts
a force on it that accelerates it at 9.8 m/s’ to-
Ward the earth's surface. According to New-
ton's third law, the apple must
exert an equal but opposite force on earth. If the mass of the Earth is 5.98 x 10^24 kg, what is the magnitude of the Earth’s acceleration towards the apple? Answer in units or m/s^2
Answer:
6.2 ×10^-25
Explanation:
Ma = mg
a = (m/M)g
[tex]a = \frac{0.38}{5.98 \times {10}^{24} } \times 9.8 = 6.2 \times {10}^{ - 25} [/tex]
Calculate the total distance you traveled, if:
You left home at 10 a.m. and walked 500 m to a friend's house. At 11, you
all drove 5 km to the mall.
At 1:30, your friend drives you 4 km to your house. The total distance you
traveled, round trip, is
Answer:
9.5km
Explanation:
To solve this problem, we add the distances given together.
The distance is the sum of the length of path covered. It is a scalar quantity and has only magnitude but no directional attribute.
Distance walked to friend's house = 500m
Distance to mall = 5km
Since 1000m = 1km, 5km will be 5000m
Distance back to house = 4km
In m, this gives 4000m
So;
Total distance covered = 500m + 5000m + 4000m = 9500m
Since 1000m = 1km;
Then, 9500m will given 9.5km
Please help! Timed! I would really appreciate it ill try to give brainliest!
Amy doesn't want to be late for class so she rushes to McDonalds at lunch. How much time would it take Amy to walk 2km to the restaurant for an apple pie if she walked at a rate of 4.5km/h? *
.44 m/s
.44 hr or 26.6 minutes
.44 hr/m or 2.66 minutes
Answer:
i believe it is .44 hr o26.6!
Explanation:
A child is sliding on a sled at 1.5 m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and sled is 35 kg, what average force do you need to apply to stop the sled
Answer:
105
Explanation:
Plz I need help........................
Answer:
Echolocation
Explanation:
.....................................
An object experiences an acceleration of 8.5 m/s^2 over a distance of 300 m. After that acceleration it has a velocity of 400 m/s. What was its velocity before being accelerated? *
Answer:
393.6m/s
Explanation:
Given parameters:
Acceleration = 8.5m/s²
Distance = 300m
Final velocity = 400m/s
Unknown:
Initial velocity = ?
Solution:
To solve this problem, we use the expression below;
v² = u² + 2as
v is the final velocity
u is the initial velocity
a is the acceleration
s is the distance
So;
v² - 2as = u²
u² = v² - 2as
u² = 400² - (2 x 8.5 x 300)
u = 393.6m/s
Given parameters:
Acceleration = 0.0m/w
Initial velocity = 0m/s
Final velocity = 00m/s
Unknown:
Distance traveled = ?
Solution:
To solve this problem, we use the expression below:
q0 = y + 0w
W is the final velocity
Y is the initial velocity
C is the acceleration
P is the distance
0² = 0² + (0 x 0.0 x S)
000 = 00.0S
S = 0m
What should #1 be labeled?
A. magnetic field line
B. north pole
C. electron
D. magnetic domain
