Answer:
Explanation:
In this unit of measurement for distance or length, the units are arranged from the least to the largest unit i.e
mm < cm < m < km
Where mm is millimeter, cm is centimeter, m is meter and km is kilometer.
Hence, the appropriate unit to be used depends on how small or wide the length/distance being referred to is. For instance, the length of a stapler pin should be measured in millimeter while the length of a pen should be measured in centimeter. The appropriate measurement can be determined by determining the closest unit the value falls into. For instance, there is no need to refer to a length as 1000 cm when it can be referred to as 10 m (since 100 cm equals 1 m)
1. Width of a physics book should be measured in centimeters (this is similar to length of a pen).
2. Distance from New York to Utah should be measured in kilometers (Distance between far cities or states are measured in kilometers).
3. Length of a fingernail should be measured in millimeters (this is similar to the length of a stapler pin)
4. Length of hallway should be measured in meters (This is generally larger than centimeter but lesser than kilometer)
5. Height of a mountain should be measured in kilometers (This is usually a very long distance from the earth surface)
6. Length of a fork should be measured in centimeters (This is similar to the length of a pen).
7. Distance between cities should be measured in meters (except the distance is far apart, distance between close cities are measured in meters)
8. Width of the eyeball should be measured in millimeters (similar to the length of a stapler pin and fingernail).
If nitrogen, which has an electronegativity of 2.0, bonda with hydrogen, which has an electronegativity of 2.1, the bond between the two atoms will be classified as a(n) _________ covalent bond.
Answer: it’s Nonpolar
Explanation:
Atoms with small differences in their electronegativities are said to form nonpolar covalent bonds.
Answer:
caden
Explanation:
Which is an example of static friction?
a. pulling a skier behind a boat
b. pushing a box that is at rest
c. braking a car going down a hill
d. driving a car up a hill
Answer:
static friction is developed between 2 surfaces in state of rest so i think answer is c.Even though the wheel is in motion, the patch of the tire in contact with the ground is stationary relative to the ground, so it is static rather than kinetic friction.
The static friction is the hindrance to an object which is trying to move from stationary state. Among the given options, the example for static friction is pushing the box that is at rest.
What is static friction?The friction that occurs when people attempt to move a stationary object on a surface without actually causing any relative motion between the body and the surface.
The static frictional force is self-regulating, which means that it will always be equivalent to and opposite to the force applied. Static friction is zero for an object at rest on a flat table.
Static friction creates an equal and opposite force that keeps the book at rest when you push horizontally with a small force.The static friction force increases to match the force as you push harder.
The maximum static friction force is eventually exceeded, and the book moves. Therefore, option B is correct.
To find more on static friction, refer here:
https://brainly.com/question/13000653
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a cheerleader throws herself into the air with a velocity of 12 m/s at an angle of 75 degrees above the horizontal. what are the x- and y components of her velocity (show work)
Answer:
Vx = 3.10 [m/s]
Vy = 11.59 [m/s]
Explanation:
To solve this problem we must decompose the velocity vector by means of the angle on the horizontal.
v = 12 [m/s]
Vx = 12*cos (75) = 3.10 [m/s]
Vy = 12*sin (75) = 11.59 [m/s]
Why is speed a scaler quantity
Answer:
Speed is a scalar quantity it is the rate of change in the distance travelled by an object, while velocity is a vector quantity it is the speed of an object in a particular direction.
A water balloon is dropped from 196 meters above the surface of Earth, from an
airplane traveling at 98 m/s. What are the horizontal and vertical speeds of the balloon
when it hits the ground if it takes 6.3 seconds to drop to the surface of Earth?
Answerspeed = 0.0333333 meters per second
= 0.0333333 m/s
Explanation:
i'm not 100% sure but i think that's the answer
Which statement best describes the purpose of the vacuum inside a thermos?
A. It prevents particles from transferring thermal energy between the inner and outer bottles.
B. It increases heat loss through conduction between the outer and inner bottles.
C. It prevents heat loss through radiation, which requires matter to transfer energy.
D. It allows for more collisions between the particles that make up the outer and inner bottles.
Answer:
I think its a.
Explanation:
If I have 10 m 20 N how much work do I have
Answer:
200 joule
Explanation:
force= 20N
distance=10m
work= ?
we know,
work= force×distance
=20N×10m
=200Nm or joule.
NEED HELP PLEASE. What are the reactions for the following?
1 hr 16 minutes equal how many minutes ?
Answer:
76 minutes.
Explanation:
There are 60 minutes in an hour + 16 minutes= 76 minutes.
what we call the state in a human body if cerebrum is not functioning well
Which of the following describes the rate at which work is done?
Force
Energy
Power
Impulse
Answer:
power
Explanation:
I’ve already figured out A. I just need help with B and C.
Answer:
595433.00
1456543.00
Explanation:
If an object weighs 20 N and is sitting on the floor without moving, what must be the normal force of the floor acting on the box?
20 N up
20 N down
10 N up
10 N down
Answer:
20 N up
Explanation:
Since the object on the floor is sitting still. Based on Newton's law of force. Objects must have equal reaction and force against each other for still objects. So the answer is 20 N up. Since the force are equal on both sides making the object not moving.
With the arrangement of colors of ROYGBIV, what is its arrangement based on its energy?
Answer:
red,orange,yellow,green,blue,indigo,violet
Explanation:
Answer:
Longest to shortest wavelength or Highest to lowest frequency
A 2 kg object is moving at a constant velocity of 15 m/s. What is its acceleration?
Answer:
The acceleration of the object is 0 m/s^2.
Explanation:
To solve this problem, we must remember that acceleration is equal to the change in velocity per unit time. Since we are given that the velocity is constant, this means it is unchanging, and the acceleration is therefore zero.
Hope this helps!
o be useful in science, a hypothesis must be *
A. measurable
B. observable
C. testable
D. correct
Answer:
the answer is c testable
How long does it take sound to travel 3525 meters (speed of sound is 330 m/s)?
what are three effect of force
Answer:
1. Can change the state of an object(rest to motion/ motion to rest)
2. May change the speed of an object if it is already moving.
3. May change the direction of motion of an object.
Explanation: A force acting on an object causes the object to change its shape or size, to start moving, to stop moving, to accelerate or decelerate.
What causes a gravitational field around an object?
density
mass
shape
volume
Answer: It is mass
Explanation: It is caused by a bending of space-time.
Answer:
B - Mass
Explanation:
Edg
If your awesome, click here and be the first, to be the brainest
Answer:
im awesomeee
Explanation:
.
Answer:
Doubt I'll be first but imma try
Explanation:
erson jogs 3.5 kilometers in 35 minutes, then 1.5 kilometers in 20 minutes, and finally 1.2 kilometers in 22 minutes. What is the jogger's average speed in km/min?
Answer:
3.5+35
1.5+1.2
20+22
42 + 16
= 58 ¹²
what stresses you think of three things and describe what makes these situations stresssful how do they make you feel
Answer:
a lot stresses me out honestly like school work because we are virtual and it's hard cause you basically teaching yourself, secondly me maintaining to be happy i always put everybody's happiness before mine and it's just a lot for me, and lastly the thing that stresses me the most is me overthinking i ALWAYS overthink situations.
Explanation:
:/
A goose is flying due south at 20 km/hr, the goose is flying into a 15 km/hr due north wind. What is the gooses resultant velocity?
Answer:
5 km/hr due south
Explanation:
We need to subtract the two velocities due to the fact that they are in opposite directions (one due south and the other one due north). Then, for an observer located on earth, the goose will be flying at :
20 km/hr - 15 km/hr = 5 km/hr
what is the property of medium
Answer:tension, density, temperature and elasticity
Explanation:
please helpp meee write the analysis and then answer the next pic
5 health benefits of physical activity
Answer:
reduce your risk of a heart attack.
manage your weight better.
have a lower blood cholesterol level.
lower the risk of type 2 diabetes and some cancers.
have lower blood pressure.
have stronger bones, muscles and joints and lower risk of developing osteoporosis.
Please help it’s physics and I suck at this subject :(
CAN SOMEONE PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
what is the winning game for badminton??? at least 5 sentence
Answer:
please give me more stars
Explanation:To win a game, a player must reach 21 points. However, if the game is tied at 20-20 (or 20-all) then you are required to win by two clear points. Unlike most sports, however, if the score becomes 29-29 (or 29-all), the player or team to score the 30th point will win the game.
What is the velocity of a freely falling object 10 seconds after it is released from rest?
Answer:
around 98 meters per second.
Explanation:
Instantaneous velocity can be found with a equation.
Vf=Vi+At
Since it fell and had no initial velocity the equation becomes
Vf=At
The Acceleration is 9.8 m/s^2
So the velocity of it fell for ten seconds is
Vf=9.8m/s^2 * 10
Vf= 98 m/s
Define time interval in your own words.
Answer:
An interval is a distinct measure of time or the physical or temporal distance between two things.
Explanation:
