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I need help on this question
Is the following statement an observation or an inference? "The house collapsed at the same time that the poles fell down." Explain
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Answer: Observation (≧▽≦)
Explanation: An observation is what you noticed. That being said i noticed "The house collapsed at the same time that the poles fell down." //Hope this helped ≧▽≦//
help me please i dont understand
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you run from your house to a friend's house that 3 miles away. you then walk home. A. What distance did you travel? B. What was the displacement for the entire trip?
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a 16 Watt bulb is used for 5 hrs. what is the energy consumed by the bulb
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Energy = (power) x (time)
Energy = (16 watt) x (5 hours)
Energy = 80 watt-hours
or
Energy = 0.08 Kilowatt-hours
or
1 watt = 1 joule/second
5 hours = 18,000 seconds
Energy = (16 joule/sec) x (18,000 sec)
Energy = 288,000 Joules
Explanation:
A unit of electricity is represented in kilowatt-hour (KWh). To calculate units, you need to find the energy consumption. It is easy, just multiply power with time.
(16×5 ) watt-hour=80Wh.
Convert it to kilowatt-hour i.e 0.08 KWh/day.
So 0.08 KWh is the energy consumption for one day.
Which of the following is true about galaxies?
a. Galaxies are moving away from each other.
b. Galaxies are moving toward each other.
c. Galaxies move in a random pattern.
d. Galaxies are stationary.
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Answer:
Galaxies move in a random pattern.
Answer:
a
Explanation:
the universe is expanding
i remember learing this
hope this helps
brailest plzz
Which is an example of an exothermic process?
A.
splitting of water molecule
B.
formation of glucose from carbon dioxide
C.
condensation of steam
D.
cooking of an egg
E.
evaporation of water
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Answer:
i think answer is c
Explanation:
as formation water from steam condensed release heat
else all need heat
The speed of sound in air is about 330m/s. How long will it take to travel 1km answer in seconds to one decimal point
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Answer:
3.03
Explanation:
time=distance/speed
1km=1000m
1000÷330
=3.030
When dropped from rest, any object will fall a total distance of 19.6 m in the first 2 seconds of its fall. How far
does the object fall just during the 2nd second (i.e., from time t= 1 s to t = 2 s)?
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Answer: The acceleration due to gravity increases the velocity of a falling object by 9.8 m/s per
second. Answer B is wrong because velocity increases. Answer C is wrong because the
distance increases every second. Ans. E is wrong because the derivative of distance with
respect to time gives the velocity, not the acceleration.
Explanation:
Extra Points because there are three questions.
1. An object goes from 20 m/s to 5 m/s in 1.2 seconds. What is the acceleration of the object?
a=vf-vi/t
2. What is the difference between distance and displacement? What is the difference between mass and weight?
3. What is the force necessary to accelerate a 40 kg object to 6 m/s/s?
F=ma
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Change in velocity=-15 (Deceleration)
Acceleration= change in velocity/time
a=-15/1.2
a=12.5m/s2
2. Distance has no magnitude and no direction but displacement has both magnitude and direction
Mass is constant but weight varies from places to places. Also, mass is the quantity of a substance contained in matter while weight is the force exerted by a body
3. Force=ma
f= 40*6
f=240N
.
Give two example of bodies that you see in daily lives,which are streamlined to reduce friction
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Answer:
1) ironing a shirt 2) writing on surfaces 3) working of an eraser
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.
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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.
Learn more about the kelvin scale of temperature from here,
brainly.com/question/88395
#SPJ2
help me please i dont understand
Answers
Answer:
0.58
Explanation:
Sinẞ = opposite ÷ hypotenuse
Sinẞ = 5 ÷ 8.6
Sinẞ = 0.5814
Sinẞ ≈ 0.58
Answer: 0.58
Explanation:
hope this helps
Fun Fact: Peanuts aren’t technically nuts
calculate the frequency and time period of sound wave of 35 m wave length propagating at a speed of 3500m/s
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Answer:
Frequency = 100 Hz
Time period = 0.01 sec
Explanation:
f= 3500/35 = 100
T = 1/f = .01
