Answer:
S=250 m
t=13.5 sec
V=?
Explanation:
V=S/t
V=250/13.5
V=18.51m/s
If a swimmer is traveling at a constant speed of 2 m/s, how long would it
take to swim the length of a 50-meter Olympic sized pool ?*
Cuts are ________, meaning an injury to the skin and the soft tissue underneath it.
A. contusions
B. lacerations
C. abrasions
D. bruises
Answer:
lacerations
Explanation:
Answer:
B. lacerations
Explanation:
A P E X!
a 50-kg object moving at 12 m / s has a momentum of 600 kg m / s what is the mass of an object moving at 4 m/s has the same momentum
Explanation:
p=mv
600kgms-1=m × 4ms-1
m=600kgms-1/4ms-1
m=150kg
The mass of the object which has momentum of 600kgm/s with the velocity of 4m/s is 150kg.
What is Momentum?Momentum is the product of the mass and velocity of the object. Momentum is the quantity of motion which is made up of the amount of matter moved and the velocity at which it moves. Momentum is a vector quantity because it has both the magnitude and direction. The SI unit of momentum is kg.m/s (kilogram meter per second).
p = m × v
p = momentum of the object,
m = mass of the object,
v = velocity of the object
600kgm/s = m × 4m/s
m = 600/ 4
m = 150kg
Therefore, the mass of the object will be 150kg.
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which of the following best describes inertia?
a) Inertia is the same as mass
b) Inertia is a result of net force
c) Inertia is the ability of an object to change its motion
d) Inertia is the tendency of objects to resist changes in its motion
Answer:
d) inertia is the tendency of object's to resist changes in its motion
What happens to the chemical structure of water when it changes state?
A. Water molecules break apart to form individual atoms.
B. Water molecules harden into ice molecules.
C. Water molecules melt into gas molecules.
D. Nothing happens to the chemical structure.
Answer:
c) Water molecules melt into gas molecules.
The chemical structure of water when it changes state - D. Nothing happens to the chemical structure.
Physical state of an object is the condition where substance have different energy content. For instance water is on heating it change into vapor or gaseous phase while cooling (decreasing heat content) causes water to become ice in solid phase. Therefore,
physical states is only in the energy content of the substance.Change in the state or phase of water does not change the chemical property. However, changing phase can alter the speed of the chemical reactions.Thus, the change in physical state do not affect chemical properties, but affects the kinetics of the reactions.
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A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 50.0 km/h, 8.0 min at 70.0 km/h, and 35.0 min at 35.0 km/h and spends 40.0 min eating lunch and buying gas. Determine the average sped for the trip. Determine the difference between the intial citties along the route.
Answer:
Average speed = 40.50 km/h (Approx)
Explanation:
Distance = Time × Speed
Total distance = (40/60) 50 + (8/60) 70 + (35/60) 35
Total distance = 33.33 km + 9.33 km + 20.17 km
Total distance = 62.80 km
Average speed = Total distance / Total time taken
Average speed = 62.80 / [(40+8+35+40)/60]
Average speed = 62.80 / 1.55
Average speed = 40.50 km/h (Approx)
what is acceleration of a 12 kg cart if a net force of 144 N is applied on it?
Answer:
The correct answer is I just did the quiz
Force,F=144N
Mass,m=12Kg
Force=Mass*Acceleration
144=12*a
12a=144
a=12
can someone give me the answers to this question
Answer:
Rubbing his hand and ironing is Mechanical Energy being transformed into Thermal Energy.
Throwing a rock vertically in using Kinetic Energy, it then transforms into Gravitational Energy as the rock falls.
Explanation:
First, as Kwane rubbing his and and iron his clothes using the energy to create heat, that is thermal being transformed.
The rock being thrown uses kinetic energy and due to graviational force of the earth, it is being transformed into Potential Gravitational Energy.
100 POINTS UP FOR GRABS FOR ANYONE WILLING TO HELP! PLEASE!
Answer:
how can I download your doc it's not getting on please help I want to answer your question. you take a screenshot and send once more on this is it okkk.
Explanation:
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I need help finding the average acceleration fo tyler and bree
if a object falls from 5 meters how long did it take for it to reach the ground explain(gravity= -10)
Explanation:
[tex]time \: period = \sqrt{ \frac{2h}{g} } = \sqrt{ \frac{10}{10} } = 1sec[/tex]
Fill in the blank. Bones fitted together in the shape of a give the human body structure.
Answer:
skeletal system
Explanation:
hope its the right answer:))
Answer:
top
Explanation:
Physical Science
convert 5.3 hl to dal
Answer: 53 dal
Explanation: 5.3x10=53, to get dal you have to multiply by 10 to get 5.3x10=53.
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The number of proton in a atom of 3H1 is
Answer:
5th hhssjn wixi. sjxbwjs. bajz wjxhqjzisjnisja
Answer:
the answer is 1
Explanation:
Lucy took 3 hours to cover 2/3 of a journey. She covered the
remaining 60 miles in 2 hours. What was the average speed
for the whole journey?
mph
Deleted this answer, sorry for any inconveniences that it may have caused.
In a study, the data you collect is Habits on a Always/Sometimes/Never scale.What is the level of measurement?
Answer:
Ordinal
Explanation:
There are four levels of measurement which include the nominal, ordinal, interval, and ratio. The data collected above is ordinal data as it qualifies the data and still indicates the ordering of the data. It gives the observer an idea of the range of data collected or its rating although mathematical calculations may not be done with it.
The other forms of data include the nominal which simply qualifies the data, the interval which qualifies the data but which the differences between the data can be obtained, and of course the data has no starting point. The ratio scale which is similar to the interval scale but which the ratios between the data obtained can be compared.
5p - 14 = 8 p + 4 find p
Answer:
Explanation:
5p - 14 = 8p + 4
5p = 8p + 18 <-- Moving constants to one side; add the same number of +14 to both sides.
-3p = 18. <-- The same thing with the variable itself.
p = -6 <-- Divide both sides by negative 3.
What is the phase of water when its temperature is 150 °C?
A. Solid
B. Liquid
C. Gas
D. None of the above.
Answer:gas
Explanation:
The phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.
What are the phases of substance?Phase is a term used in thermodynamics to describe an amount of matter that is chemically and physically uniform or homogeneous, can be mechanically separated from a nonhomogeneous mixture, and may consist of a single material or a combination of substances.
Although crystalline, colloid, glassy, amorphous, and plasma phases are thought to exist, the three basic phases of matter are solid, liquid, and gas (vapor). A phase change is defined as the transformation of a phase from one form to another.
As the boiling point of water is 100° C, the phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.
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A 2 kg ball is dropped from the roof of a building 27.5 m tall. How long
does it take to hit the ground?
Answer:
wow I need time to solve dis
How much miles is it from the surface to center of earth
The average is 3,959 miles.
it is 3,959
Explanation:
hope this helps you.
A city bus travels six blocks east and eight blocks north east wok is 100 m long is a bus travels as distance and 15 minutes what is the average speed on the bus
Answer:
the average speed on the bus = 1.55 m/s
Explanation:
From the information we are being provided with ;
a city block travels 6 blocks due east
and 8 blocks due north
the length of the individual blocks = 100m
As such their respective distance will be
distance (d) traveled due east direction by bus = 6 × 100 = 600 m
distance (d) traveled towards the north direction by bus = 8 × 100 = 800 m
The total distance covered = (600+ 800)m
= 1400 m
However, it requires 15 minutes to travel this distance by bus.
Thus,
the average speed = distance/ time
the average speed on the bus = 1400 m / (15 × 60) s
the average speed on the bus = 1400 m / 900 s
the average speed on the bus = 1.55 m/s
Human activities can have positive and negative effects on the environment Humans can benefit natural areas by CA throwing waste products in these areas. B. removing all the vegetation from these areas. c. polluting the areas by burning fossil fuels. D. preserving the natural resources that they provide
Answer:
D
Explanation:
Clearly you can't help the environment by throwing waste in the area, polluting it, or burning it all up, so D would be our only option.
Have a good day :)
If the distance between two charged particles is doubled, the force between them changes by a factor of ___. (1 point)
1/2
1/4
2
4
Answer:
decreases 1/4 of the original value
If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Force between two charge particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.
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What is the velocity of the object moving from 3 - 7 seconds?
O m/s
-6 m/s
6 m/s
That's the flat-top marked ' B '.
It's 6 m/s.
A car, initially traveling 24.0ft/s, steadily speeds up to 58.0ft/s in 5.40s. Determine all unknowns and answer the following question.
How far did the car travel during this time?
Answer:
acceleration = 6.29 ft^2/s
distance traveled by car = 405 ft
Explanation:
formula 1 : u = v - (a*t)
where u = initial velocity
v = final velocity
a = acceleration
t = time.
solving for acceleration.
24 = 58 - (a*5.4)
a = (58 - 24)/ 5.4
a = 340/ 54 = 6.29 ft^2/s
formula 2: v = d/t - (a*t/2)
58 = d/5.4 - ((340*54)/20)
d = 405 ft
your uncle danny just moved into a new apartment and wants to make his famous spaghetti sauce for his new neighbors
Answer:
he invs them
Explanation:
its common sense
Answer:
He invs them.
Explanation:
Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false
Answer:
The answer is True
Love, which can’t be observed or measured directly, is an example of a psychological construct.
Explanation:
On edge 2020
(USE THE GRAPH) Vectors B and C and are shown in the graph. Vector B is multiplied by the scalar 92. What angle does the new vector make with the x-axis?
Answer:
The angle the new vector makes with the x-axis is 33°
Explanation:
By multiplying a vector with a scalar, we multiply the similar components of the two quantities which is the magnitude of the scalar quantity and the magnitude of the vector with the new vector formed will have a magnitude equal to the product of the two magnitudes and the same direction of the original vector as follows;
The magnitude of the vector B = 5.6
The magnitude of the scalar = 92
The product of the two magnitudes = 5.6 × 92 = 515.2
The magnitude of the new vector = 515.2
The direction of the new vector = 33° South of West
Therefore, the angle the new vector makes with the x-axis = 33°.
What force is required to accelerate a 6 kg bowling ball at 2 m/s/s forward?
Answer:
12N
Explanation:
Force = mass * acceleration.
6 * 2 = 12
Taking into account the Newton's second law, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.
In first place, acceleration in a body occurs when a force acts on a body. There are two factors that influence the acceleration of an object: the net force acting on it and the mass of the body.
Newton's second law states that this force will change the speed of an object because the speed and / or direction will change. These changes in velocity are called acceleration.
So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object.
Mathematically, Newton's second law is expressed as:
F= m×a
where:
F = Force [N] m = Mass [kg] a = Acceleration [m/s²]In this case, you know:
F= ? m= 6 kg a= 2 m/s²Replacing:
F= 6 kg× 2 m/s²
Solving:
F= 12 N
Finally, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.
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brainly.com/question/23845187?referrer=searchResults brainly.com/question/13959891?referrer=searchResultshow many meters does it take to make one mile
Answer:
1610 meters
Explanation:
Answer:
1609.344 Meters
Explanation:
There is no explanation