Answer:
1.to look at your face of their is a mess.
2.to see if your hair is messy.
3.to see of your name is messy
Explanation:
none
answer this plzz and ill give you 12 points
Answer:
Explanation: I think its D
9. You are heating a piece of glass and now want to pick it up, You should
a. Use a rag or paper towels
b. Pick up the end that looks cooler
c. Use tongs
d. Pour cold water on it
Answer:
c. use tongs
Explanation:
A bird can fly 25 km/hr. How long does it take to fly 10 km?
Answer:
25 minutes
Explanation:
In a cinema theatre, why do we normally not hear echoes even though the sounds are loud?
Answer:
An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being produced the echo has to be absorbed.
Explanation:
- Approximately what are the coordinates of the Hawaii Hot
Spot?
(1) 50 N, 120 W
(3) 25 N, 158 W
(2) 25 N, 158 €
(4) 25 S, 158 E
Answer: (3) 25°N, 158°W
Explanation:
The Hawaii Hotspot is one of the most popular on the planet and is the reason the Hawaii islands were created as it created volcanoes under the Hawaii islands that erupted as the Pacific plate moved over them and then the lava cooled thereby forming the different Hawaii islands.
The approximate location of the hotspot is 25°N, 158°W in the pacific ocean.
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
Answer: 8.1m/s^2
Explanation:
For this question, in order to solve it, we have to use the second equation of motion which will be:
s = ut + 1/2at^2
where,
u = initial velocity
v = final velocity
t = time
a = acceleration
Since u = 0, then
a = 2s/t^2
a = 2 × 110/5.21^2
a = 220/27.1441
a = 8.1m/s^2
A pen cap floats in a plastic lemonade 3/4 full of water vif you squeeze the bottle the pen cap sinks to the bottom if you then let go of the bottle the pen cap floats to the surfce whe the bottle squeezed what ,if anything happens to the distance between the air molecules inside the bottle????????/
Answer:
The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same
Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases
Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle
Explanation:
A golfer pulls on the eighteenth green at a distance of 5.0m from the hole. The ball rolls straight. In the positive direction, but overshoots the hole by 1.2m. The golfer then putts back to the hole and sinks the putt for par. What is the displacement of the ball?
Answer:
Explanation:
The initial position of the ball = - 5 .0 m from the hole .
It is negative because , direction towards the hole is positive so direction from the hole will be negative .
Final position of the ball = 0 m from the hole .
Displacement of the ball = Final position - Initial position
= 0 - ( - 5 ) = 5 .0 m
Displacement = + 5 m
A ball is thrown horizontally from a height of 1 m and lands 5 m away. What is the time of flight of the ball?
Answer:
The time of flight of the ball is approximately 0.4515 s
Explanation:
The given information are;
The vertical height, s = 1 m
The horizontal distance travelled, x = 5 m
The direction of the initial velocity = Horizontal
Given that the vertical height is known and the ball is in free fall, the time of flight, t, will depend on the vertical motion of the ball
The equation of motion of the ball can be presented as follows;
s = u·t + 1/2·g·t²
The initial vertical velocity = 0
∴ 1 = 1/2 × 9.81 × t²
t² = 1/(1/2 × 9.81 ) ≈ 0.20387 s²
t = √0.20387 = 0.4515 s
The time of flight of the ball ≈ 0.4515 s.
How is momentum calculated?
O A. By dividing mass by velocity
B. By subtracting velocity from mass
C. By multiplying mass by velocity
D. By adding mass and velocity
Momentum can be calculated by multiplying the mass of an object by the velocity of an object. Thus, the correct option is C.
What is Momentum?The momentum is a quantity which can be defined as the product of the mass and velocity of an object. It is an example of standard mechanical quantity. Momentum is a vector quantity, this means it possess both a magnitude and a direction. If "m" is an object's mass and "v" is its velocity, then the object's momentum p is:
p = m × v
The examples of momentum is whenever we toss a ball at someone as well as it smacks them square in the face. It indicates how difficult it would have been to stop the ball.
Therefore, the correct option is C.
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1. If a distance-time graph contains the point (4, 15), what does that tell you about the runner?
Answer:
The answer is that the runner ran 4,15
Explanation:
The runner ran for 4 seconds and in 4 seconds he ran 15 yards or meters or feet
Cindy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minute for the next 350 meters, and 3 minutes for the rest.
Cindy’s average speed for the entire run is meters per minute. One kilometer is the same as 1,000 meters.
Answer:
200 m/min.
Explanation:
From the question given, we obtained the following data:
Total distance = 2 km
Total time = 2 + 4 + 1 + 3
Total time = 10 mins
Average speed =.?
Next, we shall convert 2 km to metre (m). This can be obtained as follow:
1 km = 1000 m
Therefore,
2 km = 2 km × 1000 m / 1 km
2 km = 2000 m
Therefore, 2 km is equivalent to 2000 m.
Finally, we shall determine the average speed of Cindy as follow:
Total distance = 2000 m
Total time = 10 mins
Average speed =.?
Average speed = Total distance /total time
Average speed = 2000 /10
Average speed = 200 m/min.
Therefore, the average speed of Cindy is 200 m/min.
ghhh what music do yall listen to
PLEASE HELP ME, IM STUCK ON THIS QUESTION
Answer:
the correxct adnswer is d
Explanation:
lol
Name any 2 physical quantities which have same dimensions.Can a quantity have unit but no dimensions?Explain
Answer:
uantities having units, but no dimensions : Plane angle,angular displacement, solid angle. These physical quantities possess units but they do not possess dimensional formulas.
Energy and work have the same dimensions force × distance.
Explanation:
I HOPE THIS WAS HELPFUL
How would you determine the acceleration from a v vs. t graph?
The acceleration is the slope of the v/t graph.
-- If the graph is a straight line, then pick any piece of the line, or even the whole graph, and divide (change in 'y') by (change in 'x') for the piece you chose.
-- If the graph is a curve or a squiggle, then you can do the same thing with a piece of it, and you get the average acceleration during that piece.
-- If you need the acceleration at one point on the graph, you have to lay a straight line against that point on the graph, and find the slope of that straight line.
Which question asks for an opinion?
A. Can people who visit Mars use the resources there to fuel a return
trip to Earth?
B. How much more radiation reaches Mars's surface than reaches
Earth's surface?
C. Is it a good idea to try to establish human colonies on Mars?
D. Is it possible to establish a human colony on Mars?
Answer:
C
Explanation:
It says is it a good idea the person so 1 person can say no and the other one can say yes so it is asks for a opinion
A question that asks for an opinion is as follows:
Is it a good idea to try to establish human colonies on Mars?Thus, the correct option for this question is C.
What is Opinion?An opinion may be defined as a type of viewpoint, judgment, or statement that is not conclusive, rather than facts, which are true statements. It may vary from person to person, topic to topic, and condition to condition.
The opinion of any individual belongs or relates to one particular person rather than to other people. For example, in this given scenario, some reply to the question with a yes answer. In a manner, it is definitely a good idea to try to establish human colonies on Mars. While some categorized themselves on no side.
Therefore, the correct option for this question is C.
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Express the number in scientific notation: 4/100
Answer:
4*10^-2
Explanation:
for the scientific notation the first number must be between 1 and 10, so in this case it is 4. 4/100 is also equal to 0.04, and if we could the number of places before 4, there are two, therefore 4 times 10 to the power of -2
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
A large black cross in a purple circle with a black line around the purple, with 10 small green balls dispersed within the purple circle.
What experimental evidence led to the development of this atomic model from the one before it?
Answer:
B: The colors of light emitted from heated atoms had very specific energies.
Explanation:
B: The colors of light emitted from heated atoms had very specific energies.
Water flows into a swimming pool at the rate
of 5.25 gal/min.
If the pool dimensions are 33.8 ft wide, 40 ft
long and 11.1 ft deep, how long does it take to
fill the pool? (1 gallon = 231 cubic inches)
Answer in units of min.
...
148.49 minutes
First find the cubic inch area of the pool.
33.8 x 40 x 11.1
You get 15007.2
Convert that to inches by multiplying it by 12.
You get 180086.4. Divide that by 231 since each 1 gallon is 231 cubic inches.
You get 779.594805
Now divde that by 5.25 (rate of flow)
You get 148.49 rouned to the nearest hundreth.
If you are able to do brainliest, I'll be happy. This took some big division...
which model would be classified as a physical model
Answer:
Model will be classified as a physical model since it is demonstrating a model in real life.
Explanation:
Answer:
Marshmallow answer
Explanation:
At what time were the racers at the same position?
O 15
O 3s
O 5s
0 4s
what are the aerodynamics of a cow
Answer:
32
Explanation:
Answer:
There's nothing quite like placing random objects through some computational fluid dynamics software. As we can see, the forehead of the cow experiences a zone of high pressure, since a lot of the air is deflected from the front of the nose and straight to the head.
Explanation:
A dog walks 40. m west, then 10. m east and then 50. m south. What is the
distance and displacement traveled?
The total distance traveled by the dog is 100 m and the displacement of the dog is 58.31 m.
The given parameters;
Initial position of the dog, 40 m westSecond position of the dog, 10 m eastFinal position of the dog, = 50 southThe displacement of the dog is the change in its initial position and the final position.
The resultant of the dogs position in x-direction: = 40 m - 10 m = 30 m
The resultant of the dogs position in y-direction: 50 m
The magnitude of the displacement;
R² = 30² + 50²
R² = 3400
R = √3400
R = 58.3 m
The distance covered by the dog is the sum of all the positions of the dog.
Distance = 40 m + 10 m + 50 m
Distance = 100 m.
Thus, the total distance traveled by the dog is 100 m and the displacement of the dog is 58.31 m.
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How might you demonstrate respect for your instructors or a fellow students
Answer:
Being attentive is the best way to demonstrate respect.
Explanation:
A go-kart accelerates at a rate
of 12.0 m/s2 How long will it
take the go-kart to reach a
speed of 25 m/s?
please hurry
Answer:
if it is at a speed of 12.5 m / s it would take 2 minutes
Explanation:
PLEASE HELPPPPPP!! 25 POINTS!!
Arnold ran the 100-meter dash in 24 seconds. Using the speed formula, calculate Arnold’s average speed.
Emma ran the 100 meter dash in 11 seconds. Using the speed formula, calculate Emma’s average speed.
Who was the fastest runner?
What was the winner's average speed?
Select the 2 best answers.
a. Arnold
b. Emma
c. The winner's average speed was 4.2 m/s
d. The winner's average speed was 9.1 m/s
e. The winner's average speed was 0.11 m/s
f. The winner's average speed was 100 m/s
What are some limitations to an H-R diagram
difference between precion and accuarcy
Answer: accuracy is how close a value is to their true value, like how close a arrow gets to the bull's eye center. precision is how repeatable a measurement is, like how close a second arrow is to the first one.
Explanation:
What is the power (P) of an electric circuit with a current (1) of 2.5 A and a
voltage (V) of 120 V? The formula for power is P= IV.
Answer:
B. 300 W
Explanation:
2.5 * 120 = 300
Watts is the unit of power
Base your answer to this question on the information below and on your knowledge of physics.
A wave traveling through a uniform medium has an amplitude of 0.20 meter, a wavelength of 0.40 meter, and a frequency of 10 hertz.
Determine the period of this wave.
What’s the period of this wave ?
Answer:
T=1/f
= 1/10
= 0.1 s
v = wavelength × frequency
= 0.40m × 10 Hz
= 4ms^-1
T = wavelength / velocity
= 0.04m / 4 ms^-1
= 0.1 m
Explanation:
so first i used the formula T=1/f and i found that the period, T is 0.1s
and secondly , to check whether i got the correct answer , i used a different formula
i used the formula T = wavelength / velocity
but there's an unknown in it , that's the velocity
so to find the velocity , i used the formula v = wavelength × frequency
when i've done the calculation , the second value of T is same as the first value of T
so , the value of the period, T is 0.1s
