The MAIN function of political parties in the United States is to
Recruiting and nominating candidates.
is a penny a conductor or insulator
It's a conductor aaaaaaaaaaaaaaaaaaaaaaa
Answer:
Conductor because pennies are made of copper, which is a conductor. Hope this helps and good luck on your assignment.
New evidence does not change what scientists already believe to be true. Group of answer choices True False
Measure What are the
most common units for
expressing the volume of
liquids?
why cant we always see the stars that are all around us
Sophia wanted to estimate the product 73 x 12 so she made an estimate of 70x 10. Would her estimate be greater or near the actual estimate?
AV ASSIGNMENT what is the length of wire whose resistivity, 3x10^6 ohm with the r=0.2mm with a given Value of 15.5 ohm's Resistance.
An unhealthy diet is to cardiovascular disease as______
is to cancer.
1. obesity
2. smoking
3. poor hygiene
Answer:
2- smoking
because smoking caused lung cancer.
Answer:
Obesity
Explanation:
Obesity the condition of being grossly fat or overweight mostly causes cardiovascular diseases such as coronary heart disease (CHD)
what is the magnitude of the average velocity of the hummingbird between 2 sec and t 4 sec
A scientist observes rock masses that have moved past each other in opposite horizontal directions. Which feature
does the scientist observe?
A. plateau
B. syncline
C. strike-slip fault
D. fault-block mountain
Answer:
C. strike-slip fault
Explanation:
The scientist must have observed a strike- slip fault.
A fault is an evidence of brittle deformation of the crust in the presence of applied stress on earth materials. Here, the earth material is the rock subjected to tension.
Where a fault occurs, there must have been movement between two blocks of rocks. The direction of movement helps us to delineate the fault type.
When two blocks moves past each other horizontally, it is a strike-slip fault like rubbing your palms together. When a block moves in the direction of the dip, it forms a dip-slip fault which results in a fault-block mountain characterized by graben and horst systems.Option A, Plateau is a table landform usually a mountain with flat peak.
Option B is a bowl shaped stratigraphic pattern in which the youngest sequence is at the core of the strata or a fold.
So, the most fitting option is C, a strike-slip fault.
Answer:
Explanation:
c
Do you think people used energy before modern times? why or why not?
Answer:
Explanation:
yes because they relied on the sun and burned wood, straw, and dried dung when the sun failed them
Bob rides his motorcycle with a constant speed of 72km/h. How far can he travel in 4 hours?
Answer:
288 Km/h
Explanation:
72x4=288
therefore 288 is your answer
Describe Eddington's experiment to prove Einstein's theory.
Answer:
i
Explanation:
Need help with both questions FAST. Please actually help
Answer:
the first one is oil and water and the second one I am between homogeneous mixture and compound
A 100 kg man stands on bathroom scale inside an elevator, on planet where free fall acceleration is 10 m.s^2. Elevator moves down with constant speed 5 m/s up. Reading of the scale is?
A.1500 N
B.1000 N
C.500 N
D.0 N
Answer: i think its A. Let me knows if its wrong so i can double check
Explanation:
The reading on the scale, if the 100 kg man standing inside the elevator, which is moving with a velocity of 5 m/s is 1000 Newtons, so option B is correct.
What is acceleration?Acceleration describes the speed and direction changes in velocity over time. Acceleration refers to the change in speed or direction of an item or points traveling straight forward. Even though the speed is constant, motion on a circle increases because of the constant change in direction.
Both effects add to the acceleration for all other types of motion. Since acceleration has both a magnitude and a direction, it is a vector quantity. Velocity is a vector.
Given:
The mass of man, m = 100 kg,
The speed of the elevator, s = 5 m/s,
The reading is higher when the person is in a standing elevator (or one moving at a steady speed).
w = mg =100*10 = 1000 N
Now:
If the elevator is going down at 5 m/s and the weight will be
W = m(g -a)
W = 100 (10 -0)
Here the acceleration of lift is zero as it is moving with constant speed,
W = 1000 N
Therefore, the reading on the scale, if the 100 kg man standing inside the elevator which is moving with a velocity of 5 m/s is 1000 Newtons.
To know more about Acceleration:
https://brainly.com/question/3046924
#SPJ2
How are temperature and average kinetic energy related? Explain.
Answer:
Explanation:
Suppose you have a box filled with all sorts of molecules that won't react with each other.
Suppose further that these molecules move. What formula are they obeying? the answer is Ke = 1/2 m v^2.
Now the mass is not going to change, but what about v, the velocity. It certainly can change.
Suppose further, that the molecules are in a closed container. Suppose that the box is heated up. What will happen? The molecules can't escape. All they can do is move faster (remember that they are trapped inside the box). Their mass won't change.
So if you put a thermometer inside a cork into a whole where the cork will seal the hole, what will the thermometer record. Those fast moving molecules will hit the thermometer and make the molecules of the thermometer move faster. The liquid inside the thermometer will measure the Ke of the molecules. So temperature is related to Ke.
The more heat, the faster the molecules are moving. The more they move, the more Ke is being transferred to the thermometer. The more heat transferred to the thermometer, the more the liqiuid in the thermometer will expand, and the higher the temperature.
So shortly temperature is the measurement of Ke inside the closed container that is filled with gas molecules.
18. The displacement of an object moving 330 km North for 2 hours and an additional 220
km North for 5 hours is
a. 110 km North
b. 220 km North
c. 330 km North
d. 550 km North
19. When something falls to the ground, it accelerates. This acceleration is called the acceleration due to
gravity and is symbolized by the letter g. What is the value of g on Earth's surface?
a. 9.8 m/s2
b. 9.8 m/s
c. - 9.8 m/s2
d. about 20 m/s2
Answer:
Explanation:
1) Displacement of the object will be gotten using simply adding the distances since they are goinf in the same direction (positive y direction)
Displacement= 330km + 220km
Displacement = 550km North
2) For a falling body, the body will possess positive acceleration due to gravity because it is falling under the influence of gravitational force. If a body is not under the influence of gravity and is thrown up, such body wont come back down. Hence the value of acceleration due to gravity of a body falling to the ground is +9.8 m/s² (note that the unit of acceleration is m/s²)
examples of rectilinear motion
Answer:
Examples for Rectilinear Motion
1) The use of elevators in public places is an example of rectilinear motion.
2) Gravitational forces acting on objects resulting in free fall is an example of rectilinear motion.
3) Kids sliding down from a slide is a rectilinear motion.
4) The motion of planes in the sky is a rectilinear motion.
A car advertisement states that a certain car can accelerate from rest to
40 km/hr in 5 sec. Find the car's average acceleration.
Answer:
8 km/h²
Explanation:
a = v-u/t
v is final velocity, u is initial velocity
a = 40-0/5
a = 8.0 km/h²
Your boat departs from the bank of a river that has a swift current parallel to its banks. If you want to cross this river in the shortest amount of time, you should direct your boat If you want to cross this river in the shortest amount of time, you should direct your boat:_________
a. perpendicular to the current.
b. upstream.
c. downstream.
d. so that it drifts with the current.
Answer:
D.
Explanation:
Given that your boat departs from the bank of a river that has a swift current parallel to its banks. If you want to cross this river in the shortest amount of time, you should direct your boat: so that it drifts with the current.
If the boat moves perpendicular to the current, the current flow will be the resistance to the movement of the boat. So, it's better for the boat to drifts perpendicularly with the current.
The best answer is therefore option D.
In hiking, what fitness component is required of you
Which of the following is the best prediction of what would happen if the distance across section 1 in the diagram were to decrease?
1. Frequency would increase
2. Energy would decrease
3. Wavelength would increase
4. Amplitude would decrease
Answer:
Option (1)
Explanation:
Relation between wavelength and frequency of a wave is,
Wavelength (λ) ∝ [tex]\frac{1}{\text{Frequency}}[/tex]
That means wavelength is inversely proportional to the frequency of a wave.
When the wavelength of the wave is decreased, frequency of the wave will increase.
Therefore, if the distance across section 1 is decreased in the given picture,
wavelength gets decreased.
As a result frequency of the wave will increase.
Option (1) will be the answer.
Which term s the product of force and distance?
O power
O work
Onetforce
Oacceleration
Answer:
The answer should be WORK
(Hope this Helps)
Explanation:
work is equal to the product of force and distance.
W=F*S
W=Work
F=Force applied
S=Distance
a plane took 3 hours and 33 minutes to finish a journey. if the distance of the journey was 2840 miles at what average speed did the plane travel
Answer:
The average speed was 800 miles/hour
Explanation:
Average Speed
If an object travels a distance d in a time t regardless of the direction, the average speed is the quotient of the distance over the time:
[tex]\displaystyle V=\frac{d}{t}[/tex]
A plane took 3 hours and 33 minutes to travel d=2840 miles to finish its journey. We will calculate the average speed in miles per hour, thus the time needs to be expressed in hours, and it's given in a mixed unit:
t=3 hours+33 minutes
Since there are 60 minutes in an hour:
t=3 hours+33 /60 hours = 3 hours + 0.55 hours = 3.55 hours
Now calculate the average speed:
[tex]\displaystyle V=\frac{2840}{3.55}=800[/tex]
The average speed was 800 miles/hour
CHANGING STATES OF MATTER
As substances gain or lose energy their state, or phase, of matter changes,
STATE OF MATTER
Sublimation
Deposition
Condensation
Answer:
condensation and deposition
Explanation:
when something gets cooler it's molecules lose kinetic energy and that applies only in condensation and depostion
Calculate Suppose an
object weighs 15 g and has
a volume of 5 cm. What is
the density of the object?
on a time line.
Different categories of events should be
O A) grouped together
OB) indistinguishable from one another
O C) distinguished from one another
D) next to one another
Answer:
D
Explanation:
why do crumple zones reduce the force in a collision.
when a driver presses the brake pedal, his car stops with an acceleration of -2.1 m/s. How far will the car travel while coming to a complete stop if its initial speed was 13 m/s?
Answer:
40.2 m
Explanation:
Wat is the volume of a marble in mL?
