Answer:
Coerce, compel, constrain
Explanation:
A soccer ball is kicked straight up in the air with an initial velocity of 17 m/s and rises to a height
of 14.7 m before beginning to fall back down. How long (in total) is the soccer ball in the air?
Answer:
3.4 s
Explanation:
Given:
Δy = 0 m
v₀ = 17 m/s
a = -10 m/s²
Find: t
Δy = v₀ t + ½ at²
0 m = (17 m/s) t + ½ (-10 m/s²) t²
0 = 17 m/s − (5 m/s²) t
t = 3.4 s
Which type of galaxy has arms that contain sites of active star formation and start close to a bulge in the center?
elliptical
irregular
barred spiral
normal spiral
The type of galaxy which has arms that contain sites of active star formation and start close to a bulge in the center is: D. normal spiral.
A star can be defined as a giant celestial (astronomical) object that is made up of a luminous sphere of plasma bounded together by its own gravitational force.
Generally, a star comprises two (2) main interstellar hot gases and these include:
I. Hydrogen (H).
II. Helium (He).
A galaxy refers to a collection of billions of stars, which are existing independently.
This ultimately implies that, the greatest number of stars are found in a galaxy.
According to astronomers, the galaxy is classified into four (4) main categories and these are:
Elliptical galaxy.Irregular galaxy.Peculiar galaxy.Spiral galaxy.Furthermore, spiral galaxies are divided into two (2) major groups such as:
I. Barred spiral.
II. Normal spiral.
A normal spiral is typically made up of arms containing sites of active star formation and it start close to a bulge in the center.
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Answer:
D) normal spiral
Explanation:
Whoever answered it practically wrote a life story. There's no need for an explanation; just get to the point and tell us the answer. But anways, the answer is D.
Position-Time Graph
30
Position (m)
10-
8)
Time (s)
The graph above represents the motion of a car. Based on the graph, the car is most
likely-
A) driving up a steep hill
B) speeding up
C) driving at constant speed
D) decelerating
Answer:
Option (C)
Explanation:
From the graph attached,
Position of a car is changing with time.
Let the two points (1, 5) and (2, 10) define the positions of a car at the different moment of time.
Since, speed = [tex]\frac{\text{Distance traveled by the car}}{\text{Time taken}}[/tex]
= [tex]\frac{10-5}{2-1}[/tex]
= 5 meter per second
Speed of the car = slope of the line on the graph
Since slope of the line is constant, speed of the car will be constant.
Therefore, Option (C) will be the answer.
A ball is released from rest at the top of a ramp and rolls with an acceleration of 0.5 m/s2 for 10 seconds. How far does it travel during this time?
Answer:
the ball travels 0.85 miles per second
Explanation:
Answer:
0.85
Explanation:
what kind of material is associated with new technology
Answer:
Silicon was touted as the revolutionary material that can do wonders in the tech industry.
Explanation:
(01.06 LC)
When is equilibrium reached? (5 points)
a
When supply is greater than demand
b
When demand equals supply
С
When supply is less than demand
d
When demand and supply both change
Answer:
Equilibrium is reached when demand equals supply.
Explanation:
Demand is the amount that consumers want and can buy of a certain product or service in a specific period of time and at a certain price. On the other hand, the supply is the amount that producers want and can sell of a certain product or service in a specific period of time and at a certain price.
In market equilibrium, the quantity demanded of the product or service equals the quantity supplied, so the price also equals. In other words, when market equilibrium is reached, demand and supply are the same, with their corresponding equilibrium price and quantity.
Two situations can occur:
When the quantity demanded is greater than the quantity supplied, the market is in a situation of excess demand. On the other hand, it may happen that the price at which the products are being offered is greater than the equilibrium price and the quantity supplied is greater than the quantity demanded. Then there is an excess supply.Equilibrium is reached when demand equals supply.
What forces come in pairs? Give an example help ASAP
What is the acceleration if a car slows down from 30 m/s to 15 m/s in 4 seconds?
Answer:
11.25
Explanation:
acceleration =v-u/t
=-30-15/4
=-45/4
=11.25
hope it helps
Answer:
[tex] \boxed{\sf Acceleration \ (a) = -3.75 \ m/s^2} [/tex]
Given:
Initial velocity (u) = 30 m/s
Final velocity (v) = 15 m/s
Time taken (t) = 4 seconds
To Find:
Acceleration (a) of the car
Explanation:
From equation of motion we have:
[tex] \boxed{ \bold{v = u + at}}[/tex]
By substituting value of v, u & t in the equation we get:
[tex] \sf \implies 15 = 30 + 4a \\ \\ \sf \implies 4a + 30 = 15 \\ \\ \sf \implies 4a = 15 - 30 \\ \\ \sf \implies 4a = - 15 \\ \\ \sf \implies a = - \frac{15}{4} \\ \\ \sf \implies a = - 3.75 \: m {s}^{ - 2} [/tex]
[tex] \therefore[/tex]
Acceleration (a) of the car = -3.75 m/s²
a car left skid marks 78 m long on a road as it slid to a stop. If the car’s acceleration was -3.9 m/s, why was its velocity before it began to skid
Answer:
-0.05
Explanation:
-3.9/-3.9= o and -3.9/78= -0.05
A car with a mass of 1500 kg is traveling down the interstate at 25 m/s. What is the kinetic energy of the car, measured in Joules?
Answer:
The answer is
468 , 750 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]KE = \frac{1}{2} m {v}^{2} [/tex]
where
m is the mass of the object
v is the speed or velocity
From the question
m = 1500 kg
v = 25 m/s
The kinetic energy of the object is
[tex]KE = \frac{1}{2} \times 1500 \times {25}^{2} \\ = 750 \times 625[/tex]
We have the final answer
468 , 750 JHope this helps you
This protects the surrounding environment, human beings, and the
reactor itself from radiation,
Answer:
renewable sources
Explanation:
A car slows down from a velocity of 25 m/s to rest in 5.0 seconds. How far did the car travel during that time?
Answer:
[tex] \boxed{\sf Distance \ travelled = 62.5 \ m} [/tex]
Given:
Initial velocity (u) = 25 m/s
Final velocity (v) = 0 m/s (Rest)
Time taken (t) = 5 seconds
To Find:
Distance travelled by car (s)
Explanation:
From equation of motion of object moving with uniform acceleration in straight line we have:
[tex] \boxed{ \bold{s = (\frac{v + u}{2} )t}}[/tex]
By substituting value of v, u & t in the equation we get:
[tex] \sf \implies s = ( \frac{0 + 25}{2} ) \times 5 \\ \\ \sf \implies s = \frac{25}{2} \times 5 \\ \\ \sf \implies s = 12.5 \times 5 \\ \\ \sf \implies s = 62.5 \: m[/tex]
[tex] \therefore[/tex]
Distance travelled by car (s) = 62.5 m
The distance car travel during that time is 62.5 meter.
What is acceleration?
Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.
Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.
Initial velocity (u) = 25 m/s
As the car becomes rest, final velocity (v) = 0 m/s (Rest)
Time taken (t) = 5 seconds.
The deceleration of the car: a = (initial speed - final speed)/time interval
= ( 25 m/s - 0 m/s)/5 second
= 5 m/s²
The distance car travel during that time = ut - at²/2
= 25 × 5.0 meter - (5×5²/2) meter
= 62.5 meter.
Hence, the distance car travel during that time is 62.5 meter.
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Explain what major mistake producers made when editing the battle scenes for the movie Star Wars
Answer: Air
Explanation:
Roffns dn b bdd
WHO CAN ANSWER BOTH 14 and 15 WITH UNITS ILL PUT U AS BRAINLEST!
Answer:
14. V=8
15. V=40
Explanation:
simplifying:
14. 4 32/8
V=8
15. 20 1000/50
V=40
Calculating density help me illl give brainliest
Answer:
1. 0.2 g/cm³.
2. 1 g/cm³.
3. 0.72 g.
Explanation:
1. Determination of the density of the bread.
Volume (V) = 2270 cm³
Mass (m) = 454 g
Density (D) =?
The density of a substance is simply defined as the mass of the substance per unit volume of the substance. It is represented mathematically as:
Density (D) = mass (m) /volume (V)
D = m/V
With the above formula, we can calculate the density of the bread as follow:
Volume (V) = 2270 cm³
Mass (m) = 454 g
Density (D) =?
D = m/V
D = 454/2270
D = 0.2 g/cm³
Therefore, the density of the bread is 0.2 g/cm³.
2. Determination of the density of water.
Volume (V) = 1 L
Mass (m) = 1000 g
Density (D) =?
Next, we shall convert 1 L to cm³. This can be obtained as shown below:
1 L = 1000 mL
1 mL = 1 cm³
1000 mL = 1000 cm³
Therefore,
1 L = 1000 mL = 1000 cm³
Therefore, 1 L is equivalent to 1000 cm³.
Finally, we shall determine the density of water as follow:
Volume (V) = 1000 cm³
Mass (m) = 1000 g
Density (D) =?
D = m/V
D = 1000 / 1000
D = 1 g/cm³
Therefore, the density of water is 1 g/cm³.
3. Determination of the mass of the block of wood.
Density (D) = 0.6 g/cm³
Volume (V) = 1.2 cm³
Mass (m) =...?
D = m/V
0.6 = m/1.2
Cross multiply
m = 0.6 × 1.2
m = 0.72 g
Therefore, the mass of the block of wood is 0.72 g.
what are the factors on which pressure exerted by a liquid depend
[tex]\huge\mathfrak\red {Answer:}[/tex]
Pressure within a liquid depends only on the
density of the liquid, the acceleration due to gravity, and the depth within the liquid.The pressure exerted by such a static liquid increases linearly with increasing depth.
[tex]\mathfrak\purple {Hope\: this\: helps\: you...}[/tex]
Calculate the volume of a 5-g sample of pure gold
≈ 0.26 cm³
Explanation:Hi there !
Gold is a metal with a very high density.
The density of gold is higher than that of lead.
Density(gold) = 19300 kg/m³ = 19.3 g/cm³
19.3 g ............ 1 cm³
5 g ..................x cm³
x = 5g×1cm³/19.3g = 0.2590 cm³ ≈ 0.26 cm³
Good luck !
The law of____suggests that the orbit of planets is not circular but____.
In scientific notation 674.3mm equals
Answer:
6.743 x 10² mm
Explanation:
A jogger runs at a constant rate of 10.0 m every 2.0 seconds. The jogger starts at the origin and runs in the positive direction for 3600.0 seconds. Hint: Draw a position- time graph.
a. Where is the runner at time t= 5.0 s?
b. Where is the runner at time t= 15.0 s?
Answer:
(a) 25 m
(b) 75 m
Explanation:
Given that the jogger runs at a constant rate of 10.0 m every 2.0 seconds.
So, the speed of the jogger,
[tex]v=\frac{10}{2}=5m/s\;\cdots(i)[/tex]
Let d be the distance covered by him in time, t s.
As distance=(speed) x (time)
So, [tex]d=vt[/tex]
From equation (i)
[tex]\Rightarrow d=5t\;\cdots(ii)[/tex]
As the jogger starts from origin, so, the distance, [tex]d[/tex], also represents the position of the jogger at the time [tex]t[/tex] s.
The position-time graph has been shown.
(a) From equation (ii), for t=5.0 s
[tex]d=5\times 5=25 m[/tex]
So, the jogger is at a distance of 25 m from the origin.
(b) Similarly, for t=15.0 s
[tex]d=5\times 15=75 m[/tex]
So, the jogger is at a distance of 75 m from the origin.
Mrs. Ernest wants to know how much light her daisies need. She places one pot of daisies under a sunlamp and another pot of daises on a windowsill. Each day she gives both plants the same amount of water. Which term BEST describes the amount of water given to the plants each day?
Answer:
Control Variable
Explanation:
A control variable is a variable that is held constant throughout the cause of an experiment, in order to test accurately the relationship between the dependent and the independent variables. The control variable, which is amount of water needed by the plants in this case, has the property of affecting the growth of the daisies, hence if it is not held constant, the result of the experiment might not be accurately attributed to the light source alone.
Therefore, to say with certainty that the difference seen in both categories of plants was from the difference in lighting alone, other variables (amount of water, type of soil, temperature etc.) has to be held constant
How can rocks reveal a places history
Answer:
the rocks have different layers to them which can contain fossils and different kinds of rocks
Select ALL that apply.The displacement method of measuring volume:
A. is the only way to measure volume.
B. can be used to measure the volume of solids.
C. can yield inaccurate results.
D. is always accurate.
E. is not affected by solubility.
Answer:
Explanation:
C. Can be used to measure the volume of solids
If I was of help mark as brainliest I am 1 short
Answer:
is not always accurate and may yield incorrect results if the matter is soluble in liquid.
what is a synonym for motion
Answer:
there are a lot so imma just say a few movement,moving,shifting,to and from
Explanation:
Hope this helps
The velocity of a car increases from 2.0 m/s to 16.0 m/s in a time period of 3.5 s. What was the average acceleration?
Answer:4.0m/s^2
Explanation:
Why is the handle made of a different material than the rest of the pot?
Answer:
Hi there!
Your answer is:
The handle is made from a different material than the rest of the pot because you want to be able to safely move & touch the handle without getting burnt. The pot is made of conductors, like metal, to help it get hot quickly and cook evenly. You need to be able to touch the handle without being in danger, so the handle is made of an insulator, like wood, which doesn't get hot easily
I hope this helps!
Answer: the handle is made up of different material than the rest of the pot because the handle can conduct heat into your hand if its the same material.
A ball rolling down a ramp accelerates from 0 m/s to 40 m/s in 10 seconds. What is its acceleration?
Answer:
4
Explanation:
you have to divide the velocity by time so 40 divided by 10 and the answer should be 4
Answer:
Its acceleration is 4 m/s^2.
7
Select all the correct answers.
The distance from Earth to the moon is 384.400 kilometers. What is this distance expressed in scientific notation?
Answer:
3.844 x 10 to the 5th power
Explanation:
Which of the following did the doll experiment not suggest?
A. African Americans attributed more positive characteristics to the white dolls.
B. African Americans had feelings of inferiority because of school segregation.
C. African Americans preferred to play with the white dolls when given a choice.
D. African Americans felt more secure and positive because of school segregation.
Answer: I do believe the answer is D if not then sorry and let others know in the comment section
The doll experiment did not suggest the African Americans felt more secure and positive because of school segregation. The correct option is D.
What is school segregation?School segregation in the United States is the segregation of students based on their colors and caste. An institution can be predominantly owned by the black and only black students can study into it.
The Americans who are black belonged to the African continent. They felt more safety and secure by studying into this segregated school.
Thus, the correct option is D.
Learn more about school segregation.
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Running, swimming, and biking are what type of exercise aerobic or anaerobic
Answer:
aerobic is the correct answer