Answer:
I feel that people hurt the land and are destroying. I think they aren't using the land for the right reasons.
3. A Tylenol has 80 mg of acetaminophen.
How many grams is that
[tex]\boxed{\sf 1g=1000mg}[/tex]
[tex]\\ \sf\longmapsto 80g[/tex]
[tex]\\ \sf\longmapsto \dfrac{80}{1000}[/tex]
[tex]\\ \sf\longmapsto 0.08g[/tex]
100 points! Help ixl! On a time limit!
Answer:
I think it is 60m/min ooh
scientific notation expresses a value as the product of a number between 1 and 10 and_____
Answer:
and the power to which the number should be raised:
1.50E2 = 1500
4.167E4 = 41,760
4.167E-4 = .0004176
Mass of the earth = 5.98 * 10^24 kg = 5.98E24 kg
Some examples of scientific notation
Answer:
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motorcycle starting from rest cover 200 metre distance in 6 second calculate final velocity and acceleration of the motorcycle
I just got asked a question about quantum entanglement. Can someone please give me a basic understandable of what it is
What do kinematic equations do?
Answer:
The kinematics equations describe the motion of an object undergoing constant acceleration
Explanation:
The kinematics equations describe the motion of an object undergoing constant acceleration. These equations relate the variables of time, position, velocity and acceleration of a moving object, allowing any of these variables to be solved for if the others are known
Alvin and Theodore race across a parking lot 451 cm long. Alvin travels at 19.28 cm/s and Theodore at 12 cm/s. When the Alvin crosses the finish line, how far behind is Theodore?
Theodore is 170 centimeters from the finish line when Alvin crosses it.
The total distance is 451 cm, so we can find the time that takes Alvin to crosses the finish line as follows:
[tex] v_{a} = \frac{x}{t} [/tex] (1)
Where:
[tex] v_{a}[/tex]: is the speed of Alvin = 19.28 cm/s
x: is the total distance = 451 cm
t: is the time that takes Alvin to crosses the finish line =?
By solving equation (1) for t, we have:
[tex]t = \frac{x}{v} = \frac{451 cm}{19.28 cm/s} = 23.4 s[/tex]
Now, after 23.4 seconds have elapsed, Theorode has traveled the following distance ([tex]x_{t}[/tex]):
[tex] x_{t} = v_{t}*t [/tex]
Where:
[tex]v_{t}[/tex]: is the speed of Theodore = 12 cm/s
[tex] x_{t} = v_{t}*t = 12 cm/s*23.4 s = 281 cm [/tex]
The distance (d) that Theodore needs to travel to cross the finish line is:
[tex]d = x - x_{t} = 451 cm - 281 cm = 170 cm[/tex]
Therefore, Theodore is 170 centimeters from the finish line when Alvin crosses it.
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An object is attached to a spring and experiences a restoring force of 50 N . The spring constant is found to be 150N/m. How far the object displaced from equilibrium?
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Explanation:
LLLLLL
7. A car travels a certain distance with a speed of
50 km/h and returns with a speed of 40 km/h.
Calculate the average speed
Plz help
what are 2 ways elastic energy affects us as humans
Answer:
The coil spring of a wind-up clock.
An archer's stretched bow.
Explanation:
A car has a steady speed 8m/s
How far does the car travel in the 8s
Answer:
64 m
Explanation:
use formula velocity= displacement / time
[tex]\\ \rm\longmapsto Distance=Speed\times Time[/tex]
[tex]\\ \rm\longmapsto Distance=8(8)[/tex]
[tex]\\ \rm\longmapsto Distance=64m[/tex]
thank you in advance
[tex]m1 = \frac{- v2m2 - m2v1}{v2 - v1} [/tex]
How many megabytes does a 30-gigabyte hard drive hold
Answer:
30,000
Explanation:
1 gig is 1000 megabytes
What phrase describes a scientific law
Which of the following speeds is greatest? (2.54 cm = 1.00 in.)
O 10 km/h
O 10 m/s
O 10 ft/s
O 10 mi/h
O 10 yd/s
Answer:
Hi, There!
O 10 m/s
O 10 yd/s
------------------------------------------------------------------------------------------------------------------
Have a great day!
When converting all the given speeds to km/h and after comparing them, we have that the greatest is option 2: 10 m/s.
To find which of the given speeds is greatest, we need to convert all the units to km/h so we can compare the values.
Option 1. 10 km/hOption 2. 10 m/s to km/h[tex]v = 10 \frac{m}{s}*\frac{1 km}{1000 m}*\frac{3600 s}{1 h} = 36 km/h[/tex]
Option 3. 10 ft/s to km/h[tex]v = 10 \frac{ft}{s}*\frac{1 km}{3280.8 ft}*\frac{3600 s}{1 h} = 11.0 km/h[/tex]
Option 4. 10 mi/h to km/h[tex]v = 10 \frac{mi}{h}*\frac{1 km}{0.6214 mi} = 16.1 km/h[/tex]
Option 5. 10 yd/s to km/h[tex]v = 10 \frac{yd}{s}*\frac{1 km}{1093.6 yd}*\frac{3600 s}{1 h} = 32.9 km/h[/tex]
Therefore, the greatest speed is option 2: 10 m/s.
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what do you mean by Spin quantum number?
Answer:
In atomic physics, the spin quantum number is a quantum number (designated ms) which describes the intrinsic angular momentum (or spin angular momentum, or simply spin) of an electron or other particle.
screws cannot be driven into wood if there was no ---------------------force.
Answer:
contact force is correct answer
Explanation:
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Answer:
Frictional force
Explanation:
Screws cannot be driven into wood if there was no Fritional force
What is the correct definition of speed?
A. time (hours or seconds)
B. time per distance (hours per mile or seconds per meter)
C. distance per time (miles per hour or meters per second)
Answer:
C
Explanation:
The correct definition is distance / time, although teachers like to mix you up sometimes. A question like "How many minutes per mile does it take to go 3miles in 20 minutes?" In this question, the units are upside down.
The standard answer is what is the rate of speed when when 3 miles are covered in 2 hours.
Here the answer is 3/2 = 1.5 miles / hour which is the standard way of writing speed or rate. distance / time.
Question 3 of 25
In which phenomenon does light act as particles?
A. Double-slit experiment
B. Diffraction
C. Constructive interference
D. Blackbody radiation
Answer:
D. Blackbody radiation
Explanation:
Such absorbs all colors of light due to the spectrum determined by temperature only.
a scalar is a value that:
a) has neither magnitude nor direction
b)has only direction
c)has both magnitude and direction
d) has only magnitude
Explanation:
A scalar is a value that has only magnitude.
An Internet connection transfers 32 kilobytes per second. How many bytes are being transferred every second?
Answer:
32,000
Explanation:
There are 1,000 bytes in each kilobyte, so therefore 32,000 bytes are transferred each second.
Name:
Mellisayang
Kinematics practice problems #1
1
A high school athlete runs 1.00 x 10 m in 12.20 s. What is the velocity in m/s and km/h?
Answer:
[tex]velocity = \frac{distance}{time} \\ velocity = \frac{10}{12.20} \\ velocity = \frac{50}{61} \\ multiply \: by \: 3.6u \: can \: convert \: to \: km \: per \: hour \\ velocity = \frac{50}{61} \times 3.6 \\ v = \frac{180}{61} \\ v = 2.95 \frac{km}{h} \\ thank \: you[/tex]
Q23 In Hindu chronology, the longest time measure is a para. One para equals 311 040 000 000 000 years. Calculate this value in megayears, hours and in seconds. Write your answers in scientific notation.
The conversion in megayears, hours and seconds are :
[tex]1 \: para \: = \: 3.11 \times {10}^{8} \: megayears[/tex]
[tex]1 \: para \: = \: 2.72 \times {10}^{18} \: hours[/tex]
[tex]1 \: para \: = \: 9.81 \times {10}^{21} \: seconds[/tex]
Given that :
1 para = 311040000000000 years
1 mega year = 1 million years :
311040000000000 years expressed in mega years will be :
Let : number of mega years = p
1 mega year = 1,000,000 years
p = 311040000000000 years
Cross multiply :
311040000000000 × 1 = 1,000,000 × p
311040000000000 = 1000000p
p = 311040000000000 / 1000000
p = 311040000 mega years
p = 3.1104 × 10^8 mega years
[tex]1 \: para \: = \: 3.11 \times {10}^{8} \: megayears[/tex]
In hours :
In hours : 8760 hour = 1 year
Let : number of hours = p
1 year = 8760 hours
311040000000000 years = p
Cross multiply :
p = 8760 × 311040000000000
p = 2724710400000000000
p = 2.72 × 10^18 hours
[tex]1 \: para \: = \: 2.72 \times {10}^{18} \: hours[/tex]
In seconds :
31536000 seconds = 1 year
Let : number of hours = p
1 year = 31536000 seconds
311040000000000 years = p
Cross multiply :
p = 31536000 × 311040000000000
p = 9808957440000000000000
p = 9.81 × 10^21 hours
[tex]1 \: para \: = \: 9.81 \times {10}^{21} \: seconds[/tex]
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what is the relationship between the variables on this graph? The temperature does not have an effect on flow time. As the temperature increases, the flow time increases. As the temperature increases, the flow time decreases.
Answer: As the temperature increases, the flow time increases.
Explanation: i took the test
The relationship between the variables on this graph is that As the temperature increases, the flow time increases, therefore the correct answer is option B.
What is the kelvin scale of temperature?It is a scale of temperature used to measure the temperature, the kelvin scale of temperature is also known as the absolute scale of temperature.
The Standard International unit of thermodynamic temperature is the kelvin, often known less frequently as the degree Kelvin. The formal definition of one kelvin is 1/273.16 of the thermodynamic temperature of pure water's triple point.
As shown in the graph as the temperature increase across the X axis the flow time is increasing as well, these two variables are directly proportional to each other.
Thus, The graph shows a link between the variables, showing that when the temperature rises, flow time also rises, hence option B is the proper response.
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Blaise is driving a car that is traveling 6.03 m/s and accelerates uniformly at 2.5 m/s² to reach a speed of 12.9 m/s. How long does it take for this acceleration to occur?
It would take 0.3639 seconds for this acceleration to occur.
Given the following data:
Initial speed, U = 6.03 m/sFinal speed, V = 12.9 m/sAcceleration, a = [tex]2.5 \;m/s^2[/tex]To find how long it takes for this acceleration to occur, we would use the first equation of motion.
Mathematically, the first equation of motion is given by the formula;
[tex]V = U + at[/tex]
Substituting the values into the equation, we have;
[tex]12.9 = 6.03 + 2.5t\\\\2.5t = 12.9 - 6.03\\\\2.5t = 6.87\\\\t = \frac{2.5}{6.87}[/tex]
Time, t = 0.3639 seconds
Therefore, it would take 0.3639 seconds for this acceleration to occur.
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What is the speed of a walking person in m/s if the person travels 2000 m in 35 minutes?
Distance = 2000m
Time = 35 minutes = 35×60 sec = 2100 sec
We know, Speed = Distance/Time
Therefore, Speed
= 2000m/2100s = 20/21 m/s
Answer: 20/21 m/s
Hope it helps! Please do comment
what is known physical quantity
Answer:
those quantity which are measured and expressed on mathematical process is called physical quantity
A dog runs 20 m east and then 35 m west in 12 seconds.
What is the dog speed? What is the dogs velocity?
Answer: Dog's speed = (20 + 35) /12 = 4.583 m/s
Dog's velocity = (20-35)/12 = -1.25 m/s
Explanation: Speed is a scalar quantity so we don't care about direction which means we add the magnitude of both the directions i.e. east and west.
About the velocity, it's a vector quantity. So, we must be very careful with the directions and signs. In cartesian coordinates system, we generally take the right side of origin as the positive x-axis and the left side of origin as the negative x-axis. So, considering the same fact, we consider east as positive side and west as the negative side.
Therefore, when we add 20m + (-35m), we get = -15m and you already have the time period of 12 s.
Which of the following objects has the greatest inertia?
5.0 kg object moving 5.0 m/s
15 kg object moving at 1.0 m/s
20.0 kg object at rest
10.0 kg object at rest
Last one has the greatest inertia
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Which is the best estimate for the mass of a typical lineman on a high school football team
1. 100,000 g
2. 100,000 kg
3. 100,000 mg
We have that the best estimate for the mass of a typical lineman on a high school football team is
[tex]100,000 g=100kg[/tex]
From the options
1. 100,000 g
2. 100,000 kg
3. 100,000 mg
Generally
A Typical lineman cannot be as small as
[tex]100000mg=0.1kg=100g[/tex]
A Typical linesman cannot be as massive as
[tex]100,000kg[/tex] as that is unrealistic
With the Average Mass of A Typical linesman can be
[tex]100,000 g=100kg[/tex]
In conclusion
The best estimate for the mass of a typical lineman on a high school football team is
[tex]100,000 g=100kg[/tex]
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