Answer:
Masę, m = 1,02 kilograma
Explanation:
Biorąc pod uwagę następujące dane;
Wysokość = 100 m
Energia potencjalna = 1 KJ = 1000 dżuli
Wiemy, że przyspieszenie ziemskie wynosi 9,8 m/s².
Znaleźć masę obiektu;
Energię potencjalną można zdefiniować jako energię posiadaną przez obiekt lub ciało ze względu na jego położenie.
Matematycznie energia potencjalna jest określona wzorem;
[tex] P.E = mgh [/tex]
Gdzie;
P.E reprezentuje energię potencjalną mierzoną w dżulach.
m reprezentuje masę obiektu.
g reprezentuje przyspieszenie ziemskie mierzone w metrach na sekundę kwadratową.
h oznacza wysokość mierzoną w metrach.
Podstawiając do wzoru, mamy;
1000 = m * 9,8 * 100
1000 = m * 980
Masę, m = 1000/980
Masę, m = 1,02 kilograma
for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?
Answer:
Useful Output = 35 J
Explanation:
The useful energy output of the car must be equal to the difference between the total input energy supplied to the car and the energy wasted by the car:
Useful Output = Total Input - Waste
where,
Total Input = 120 J
Waste = 85 J
Therefore,
Useful Output = 120 J - 85 J
Useful Output = 35 J
help me pls its for my science class i need to show my work
Answer:
P = 5880 J
Explanation:
Given that,
The mass of the block, m = 30 kg
The block is sitting at a height of 20 m.
The block will have gravitational potential energy. The formula for gravitational potential energy is given by :
[tex]P=mgh\\\\=30\times 9.8\times 20\\\\=5880\ J[/tex]
So, the required potential energy is equal to 5880 J.
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP ASAP I need to turn this in!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Population B is taller on average
Explanation:
Without even needing to take the average of the heights, we can glance at the histograms and notice that the vast majority of Population A's flowers are under 30 cm.
what is hypermatropia?
Answer:
Hypermetropia (hyperopia, long-sightedness or far- sightedness) is a form of refractive error in which parallel rays of light coming from infinity are focused behind the light sensitive layer of the retina, when the eye is at rest.5 Dec 2017
Explanation:
thank me later
10.
Planets that are more than 1 AU from earth include:
a. Mercury, Mars, Pluto, Saturn
b. Mercury, Venus, Earth, Mars
C. Earth, Mars, Jupiter, Saturn, Uranus, Neptune
d. Jupiter, Saturn, Uranus, Neptune
Answer:
C
Explanation:
Earth Mars Jupiter Saturn,Uranus, naptune
A wave transports what
from one place to another.
A friction
OB. atoms
O C. energy
OD, amplitude
An empty water tank has a rectangular base with side lengths of 1.2 m and 2.3 m. The weight of the tank applies a pressure of 350 Pa to the surface it is resting on. What is the weight of the tank?
Answer:
Weight = 966 Newton.
Explanation:
Given the following data;
Length = 1.2 m
Width = 2.3 m
Pressure = 350 Pa
To find the weight of the tank;
We know that weight is the force of gravity acting on an object multiplied by its mass.
Weight = mg = force
Hence, we would determine the force using the parameters that were given.
But we would first determine the area of the rectangular tank.
Area of rectangle, A = length * width
A = 1.2 * 2.3
A = 2.76 m²
Mathematically, pressure is given by the formula;
Pressure = force/area
Force = pressure * area
Substituting into the formula, we have;
Force = 2.76 * 350
Force = 966 Newton
Therefore, the weight of the tank is 966 Newton.
Which nucleus completes the following equation?
Answer:
I think B but I could be wrong
Explanation:
How do the properties of the planets change as you move away from the sun?
Answer:
as we move away from the sun the velocity of the planet decreases
Mr. Vinny is somehow charged with +2.0 C, a HORRENDOUS amount of charge. Unfortunately for Mr. Vinny, a sledgehammer has been charged with –10.0 C. Since opposites attract, the sledgehammer flies at Mr. Vinny. How far away is the sledgehammer when the force between them is 4.50x1010
Answer:
Aytyhjnjdfjjdhjhgkhgjkbghnnnnjjjjkkkkkkkkk
An upright object 2.80 cm tall is placed 16.0 cm away from the vertex of a concave mirror with a center of curvature of 24.0 cm. What is the focal length of this mirror?
Answer:
f = 12 cm
Explanation:
Center of Curvature:
The center of that hollow sphere, whose part is the spherical mirror, is known as the ‘Center of Curvature’ of mirror.
The Radius of Curvature:
The radius of that hollow sphere, whose part is the spherical mirror, is known as the ‘Radius of Curvature’ of mirror. It is the distance from pole to the center of curvature.
Focal Length:
The distance between principal focus and pole is called ‘Focal Length’. It is denoted by ‘F’.
The focal length of the spherical (concave) mirror is approximately equal to half of the radius of curvature:
[tex]f = \frac{R}{2}[/tex]
where,
f = focal length = ?
R = Radius of curvature = 24 cm
Therefore,
[tex]f = \frac{24\ cm}{2}[/tex]
f = 12 cm
20 points plz help i dont really understand how to do this
my grades at d rn plz help lol tysm if you do < 3
. Calculate the equivalent resistance of the circuit.
c. Calculate the current through the battery.
d. How much current is passing through each resistor
[tex]\huge{ \mathfrak{ \underline{ Answer} \: \: ✓ }}[/tex]
1. Calculate the equivalent resistance in the circuit :
In the given diagram, the resistors are in series connection,
So equivalent resistance = sum of resistance of both resistors.
[tex] \large \boxed{R_{eq} =R_1 +R_2 }[/tex]
[tex]R_{eq} = 480 + 360[/tex][tex]R_{eq} = 840 \: ohms[/tex]Therefore, Equivalent resistance = 840 ohms.
2. Calculate the current through the battery :
[tex] \boxed{ \mathrm{current = \dfrac{potential \: \: difference}{resistance} }}[/tex]
[tex]i = \dfrac{120}{840} [/tex][tex]i = \dfrac{1}{7} [/tex][tex]i = 0.142 \: Amperes[/tex]Hence, current through the battery = 0.142 A
3. How much current is passing through each resistor :
Since the resistors are joined in series connection, the current flowing through each resistor will be equal = 0.142 Amperes.
___________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Object A has a negative charge. Object A is repelled by object B. Object B is repelled by object C and attracted to object D. What are the charges on objects B, C, & D?
Answer:
B negatively charged. C negatively charged. D positively charged.
Explanation:
If A Is negative and B is repelled by it this means that B has to have the same charge as A therefore B is negatively charged.
B is repelled By C therefore meaning they both have the same charge so C has to be negatively charged.
B is attracted to D. attraction occurs between oppositely charged objects. Therefore D has to have the opposite charge of B. Since B is negative D has to be positive in order for that attraction to occur.
What is the frequency of a wave moving at 1782 m/s if its wavelength is 30.2 m?
Answer:
Explanation:
Wavelength = Velocity / Frequency
= 1782/30.2
= 59 metre.
Compare the resistance of a 1.5-Amp interior light bulb of a car (operating off a 12-V battery) to the
resistance
nce of a 100-Watt bulb operating on a 110-volt household circuitry.
Answer:
The resistance of the internal light bulb of the car is higher than that of the household circuitry.
Explanation:
Given the following data;
I. Current = 1.5 A
Voltage = 12 V
To find the resistance;
Voltage = current * resistance
12 = 1.5 * resistance
Resistance = 12/1.5
Resistance = 8 Ohms
II. Power = 100 Watt
Voltage = 110 V
To find the resistance;
Power = voltage/resistance²
100 = 110/resistance²
Cross-multiplying, we have;
100resistance² = 110
R² = 110/100
R² = 1.1
Taking the square root of both sides, we have;
R = √1.1
R = 1.05 Ohms
Therefore, the resistance of the internal light bulb of the car is higher than that of the household circuitry.
I WILL MARK YOU THE BRAINLIEST NO LINKS
What is the difference between heat and temperature?
Heat is caused by the sun, and temperature is caused by conditions in the atmosphere.
Heat is measured in calories, and temperature is measured in joules.
Temperature measures the motion of molecules, and heat is the energy of that motion.
Temperature is measured by a thermometer, and heat is measured by a barometer.
Answer:
Temperature measures the motion of molecules, and heat is the energy of that motion.
Explanation:
Answer:
Temperature measures the motion of molecules, and heat is the energy of that motion.
Explanation:
h2+o2 - h2o mass
Please help
H2O2 H2O
H2 + O2 → H2O. Word equation: Hydrogen gas + Oxygen gas → water. Type of Chemical Reaction: For this reaction we have a Combination reaction. Balancing Strategies: For this reaction it is helpful to start by changing the coefficient in front of H2O and so that you have an even number of oxygen atoms.
What is the difference between Mass and Weight?
Answer: Mass is the quantity of matter in an object whereas weight is the force of gravity on an object.
Weight is dependent on gravity while mass is independent on gravity
Explanation:
A construction worker puts 20 J of energy in to one strike of his hammer on the head of a nail. The energy transferred to driving the nail into the wood is 8.0 J. What is the efficiency of the construction worker's hammering? (2 sig figs and answer in a percentage)
Answer:
The efficiency of the constuction is 9.0
Explanation:
Which statement describes an example of destructive interference?
A. Light shining on a DVD surface produces different colors.
B. Light shining on a surface has gaps after passing through two
slits.
C. A lamp lights an area around a corner.
D. The inside of a seashell appears to be many different colors.
Answer:
B. Light shining on a surface has gaps after passing through two
slits.
Explanation:
Destructive interference is said to occur when two waves cancel out each other. The occurrence of this phenomenon implies that the waves have equal amplitude in opposite directions.
When light shinning on a surface has two gaps after passing through two slits, then the waves have interfered destructively which led to the gaps.
What is the difference between a counting loop and an infinite loop?
Drag the correct labels to the box. Not all labels will be used. Identify the examples of persuasive writing. We must act to preserve the rain forests of the Amazon. According to the World Wildlife Fund, 17 percent of the rain forest has been cleared in the past 50 years. You never know where you will make a new friend! Let me tell you this story about how I came to meet my new friend. It was at one of the most unexpected places—a train station! Technology is meant to help us connect easily and quickly with each other. However, many people have become obsessed with posting on social media sites. They pay little attention to actual human interaction. Banning all video games is not the answer to reducing violence in our society. People argue that violent games harm our culture and should be banned. However, this action would go against the freedom of choice. The New York Times reports that over a million students in the United States are now taking courses online. Online learning may be more convenient for students and teachers. However, it appears to be just an attempt by schools to save money. Spain is one of the most appealing countries in Europe. Everything from the food to the people and the music has its own unique flavor.
Hi,
Persuasive writing "is a sound argument of a position backed up with facts, details, examples, and one additional element-appeal".
In the choices there are only 3 answers who appeal to this definition:
1. Banning all video games is not the answer to reducing violence in our society. People argue that violent games harm our culture and should be banned. However, this action would go against the freedom of choice.
2. The New York Times reports that over a million students in the United States are now taking courses online. Online learning may be more convenient for students and teachers. However, it appears to be just an attempt by schools to save money.
3. We must act to preserve the rain forests of the Amazon. According to the World Wildlife Fund, 17 percent of the rain forest has been cleared in the past 50 years.
XD
Find all the missing elements:
Answer: 80
Explanation:
Answer:
C=20
a = 10.8
c= 4.3
Explanation:
Water is more dense in its solid state.
Water is more dense in its solid state.
This statement is true.
Answer: what is it asking
Explanation:
PLEASE HELP! WILL MARK BRAINLIEST!
If both waves have opposite signs, then ____________ interference will occur when the two waves overlap.
A. Constructive
B. Negative
C. Positive
D. Destructive
Point A is 2.50 m from a +3.73*10^-8 C charge, and Point B is 1.00 m from the charge. What is the potential difference when you go from point A to point B? Include the correct sign, + or - (Hint: Does V go up or down when you go from A to B?) (Unit = V)
Answer:
-201
Explanation:
Got it right on Acellus
Answer:
-201
Explanation:
acellus
I WILL MARK YOU THE BRAINLIEST NO LINKS
What is the net force acting on the airplane?
740 N right -->
700 N right -->
100 N left <--
760 N right -->
Answer:
100 N left <--
Explanation:
Answer:
100 to the left
Explanation:
Two students are trying to decide whether or not Object A is charged. They perform the following two
tests:
Test 1: They bring Object A near a positively charged tape and observe attraction.
Test 2: They bring Object A near a negatively charged tape and observe attraction.
These two tests lead to the conclusion that Object A is
a.
charged negatively
b. charged positively
c. electrically neutral
d. charged, but with an unknown type of charge
A ray of light has a wavelength of 284 nm in glass (n = 1.51). What is its wavelength in a vacuum? (Remember, the wavelength is longer in a vacuum.) (Unit = nm)
Answer:
428.8 nm
Explanation:
Jasmine is investigating the effect force has on the motion of an object. She predicts if she puts a strong force on pushing a bowling ball, it will travel a farther distance than when a weak force is applied. Is her prediction correct? No, a weak or a strong force applied to the ball is unable to affect the motion of the ball. No, the force applied to the bowling ball should be a strong force. Yes, the force applied to the bowling ball affects the motion of the ball. Yes, the ball will travel a longer distance when a weak force is applied.
Answer:
I would like to attach options to the question above for clarity.
Jasmine is investigating the effect force has on the motion of an object. She predicts if she puts a strong force on pushing a bowling ball, it will travel a farther distance than when a weak force is applied. Is her prediction correct?
A. No, a weak or a strong force applied to the ball is unable to affect the motion of the ball.
B. No, the force applied to the bowling ball should be a strong force.
C. Yes, the force applied to the bowling ball affects the motion of the ball.
D. Yes, the ball will travel a longer distance when a weak force is applied.
The correct option is C (Yes, the force applied to the bowling ball affects the motion of the ball).
Explanation:
First, a force is any effort either push or pull that causes an object to undergo a change.
A bowling ball can remain at rest or in motion except a force acts on it. This brings us to the question above, the mass which affects force is not mentioned which means it is uniform or negligible. Recall that force = mass X acceleration. So the greater the force that is applied to the bowling ball the further distance it will travel. From the question, she applied a forward force (pushing), so the more force she applies the further the bowling ball will travel.