Answer:
true :-)
Explanation:
When the voltage is
4V, the light bulb
flows 300 mA. What
work does the
electricity do in 5
minutes?
Explanation:
ask to nirajan shrestha
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What is the polarity of each of the earths magnetic poles ? Explain you answer
Answer:
When you put un-like poles together (South facing North) you can feel magnetic attraction. In the Northern Hemisphere, your compass needle points North, but if you think about it for a moment, you will discover that the magnetic pole in the Earth's Northern Hemisphere has to be a South polarity.
What would be some effects on teenage brains specifically?
Being abused and watching violence movie
Answer:
addicted to junk food or tv and the mall and getting in truble by grafiti and tresspasing
Explanation:im just guessing
If a toy train has a mass of 1.5 KG and accelerates at a rate of 20 M/S 2 calculate force acting on it?
Answer:
F = 30 N
Explanation:
Given that,
Mass of a toy train, m = 1.5 kg
The acceleration of the toy-train, a = 20 m/s²
We need to find the force acting on it. We know that, net force acting on an object is given by :
F = ma
Substitute all the values,
F = 1.5 × 20
F = 30 N
Hence, the net force acting on the toy train is equal to 30 N.
Which statement best describes the acceleration of a baseball?
A The baseball rolls a distance of 4 meters in 1.5 seconds.
B The baseball moves at an average speed of 2 m/s.
C The baseball began at rest and rolls at a rate of 14.7 m/s after 1.5 seco
D The baseball rolls to the right at an average speed of 2
I need a lil bit of help I’m doing this for my friend
Answer:
C the baseball began at rest and rolls at a rate of 14.7 m/s after 1.5 seconds
Essay on global temperature change. I have tried to do this multiple times but it always end up all scrambled so if someone would write on for me that would be amazing
Global climate change is a change in the atmosphere that occurs all over the planet simultaneously. Although these changes have occurred in certain periods in a natural way, we are currently facing global climatic changes caused by human activities, which have inconsequentially modified the natural harmony of climatic conditions.
The climate change we are currently experiencing refers to global warming, where the earth's temperature is increasing on an alarming and worrying scale. Global warming has caused the melting of the polar ice caps, harmed marine life, increased the surface temperature of the oceans, caused droughts and floods, in addition to promoting an abnormal and harmful sensation to living beings.
These changes are the result of the constant use of fossil fuels, deforestation, pollution and other human activities that have degraded nature and the atmosphere. This is because these activities, mainly the use of fossil fuels, promote a large production of carbon dioxide, which, when released into the atmosphere, causes holes in the ozone layer that protects our planet from the sun's rays. With the depletion of the ozone layer, the planet is left unprotected and receives sun rays at harmful intensities.
Therefore, we can conclude that the global climate changes that we are experiencing are the consequences of our own actions and that is why it is our responsibility to repair the damage caused by global warming and to promote measures that reduce it.
How many hydrogen atoms are in one molecule of (NH4)2SO4
There are eight hydrogen atoms in (NH4)2SO4
True or False: The same parent rock can produce magmas of different composition if the melting temperature is different.
HELP NOW PLEASE
Answer:
False
Explanation:
Identify the forces present on the divers in the picture below.
Gravity
Spring
Tension
Normal
Sliding Friction
Air Resistance
Answer:
sliding friction/air resistance
PLEASE ANSWER ASAP!!!
Answer:
if one bulb burns out the other will also turn off because they are connected to each other.
How much work does the electric field do in moving a -7.7 hC charge from the ground to a point whose potential is +55 V higher?
Indigo the dog has escaped. She trots north at 5m/s. She looks behind to see Miss Leuthauser chasing after her and then she starts running at 15m/s. She changed her velocity in 2 seconds. What is her acceleration?
Answer:
5 m/s²
Explanation:
From the questio,
Acceleration (a) = Change in velocity(Δv)/time(t)
a = Δv/t
a = (v-u)/t.................. Equation 1
Where v = final velocity, u = initial velocity, t = time
Given: v = 15 m/s, u = 5 m/s, t = 2 seconds
substitute these value into equation 1
a = (15-5)/2
a = 10/2
a = 5 m/s².
Hence her accleration is 5 m/s²
2. Compare the names of the metal elements by themselves to their names what they are part of andows
compound. Do they change? If yes, how do They change
this question is unclear. please specify.
The name of metals does change when they become part of compounds.
When they are a component in a compound, metal elements' names may change. This is so that metal elements can combine with other elements to create various kinds of compounds. In order to identify the oxidation state or the type of compound created, prefixes and suffixes are often used in the naming conventions for metal elements in compounds.
Some examples of compounds are:
Salt (Na):
Sodium chloride is created when chlorine and sodium combine.
The word "sodium" is changed to "sodium chloride" to denote that the substance is a mixture of sodium and chlorine.
Steel (Fe):
Iron becomes iron oxide when it joins with oxygen to form a chemical.
The word "iron" is changed to "iron oxide" to denote that the product is a result of the fusion of iron and oxygen.
You can see from these examples that when metal components are included in a compound, their names alter to reflect the elements the combination includes. The naming rules make it easier to recognize particular compounds and set them apart from the individual metal constituents.
Hence, the name of metals does change, when they become part of compounds.
To learn more about Metals, here:
https://brainly.com/question/29404080
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There are ___ basic wave forms.
1
2
3
4
Question:The greater the
of the object, the greater the
force needed to achieve the same change in motion.
Answer:
True
Explanation:
when the object is larger , the inertia of the object is larger so its tendency to change its state of motion is reduced is reduced.
Need all the answers to (Lab report: phase change) asap
Explanation: It's really blurry and sideways
Which of the following best describes why tidal energy is considered a renewable energy resource? A. The Moon receives energy from the Sun, which is a renewable resource. B. Humans can create more tidal energy by setting up more tidal energy plants. C. Ocean water will never be exhausted. D. Tidal energy is replaced naturally by the Moon's gravity.
Answer:
D. Tidal energy is replaced naturally by the Moon's gravity.
Explanation:
The reason tidal energy is considered a renewable energy resource is that Tidal energy is replaced naturally by the Moon's gravity. The Moon's gravity creates bulges on the side of Earth that is closest and farthest from the Moon. These bulges also pull water causing high tides in those areas. As the Earth rotates these areas experience low tide while the areas that had low tide now experience high tide. This constant shift creates tidal energy every day, which is replenished naturally.
a piano tuner is tuning a piano when he discovers that the G above middle C is vibrating with a higher frequency than his G tuning fork, which vibrates at 392.0 Hz. He plays the piano key and tuning fork at the same time and hears a beat frequency of 2.0 Hz.
a. What is the frequency of the G on Ms. Carlton's piano?
b. If it had been a lower frequency, creating a beat frequency of 4.0 Hz, what would it have been?
Answer:
Tuning a piano is the process of adjusting the tension of its strings, thereby altering their pitch, or frequency of vibration, by slightly turning the tuning pins to which they're attached, so that each string sounds pleasingly in harmony with every other string.
Hopefully u will satisfy with my answer of ur question..!!Have a nice day ahead dear..!!HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
water has a specific heat capacity of 4.184 j/kg the energy needed to heat 2kg of water by 5°C is
Answer:
41840
Explanation:
c = Q/mt
4,184 = Q/10
41,840J = Q
The graph is the path Beth took on a walk.
A graph with horizontal axis time (seconds) and vertical axis position in (meters). The line runs in 2 straight segments from 0 seconds 2 meters to 6 seconds 8 meters to 10 seconds 0 meters.
Answer:
could you add a picture?
Explanation:
What will happen to the size of the Aragorn Sea over time?
Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this? The function of these bones is the same in all animals They live in similar environments They have a common ancestor All organisms resemble humans
Answer:
They have a common ancestor
Explanation:
Similar arm bones are present in different types of animals as mentioned which are humans, birds, whales and lizards and the reason is that all of them had the same ancestors and eventually the species evolved into present day forms.
Other options are wrong because.
1. Function is these bones obviously are not same as whales have no arms like humans or birds.
2. They do not live in same environment as whales are in oceans and birds are in airborne whereas humans and lizards are land occupying.
3. All animals are different from each other and do not resemble humans.
Therefore the correct answer is that their ancestors were common.
A heat pump receives heat from a lake that has an average winter time temperature of 6o C and supplies heat into a house having an average temperature of 25o C. (a) If the house loses heat to the atmosphere at the rate of 60,000 kJ/h, determine the minimum power supplied to the heat pump (in kW) that can maintain the interior temperature of the house at 25o C. (b) Suppose the heat pump absorbs energy from the ground (10o C) instead of the lake, Calculate the minimum power (in kW) required for the heat pump.
Answer:
Explanation:
60000 kJ / h = 60000 x 1000 / (60 x 60 )
= 16667 J /s
a)
[tex]\frac{Q_H}{W} =\frac{T_H}{T_H-T_C}[/tex]
where [tex]Q_H[/tex] and [tex]W[/tex] are heat supplied and heat given from outside source .
Here [tex]Q_H[/tex] = 16667 J/s
[tex]\frac{T_H}{T_H-T_C}=\frac{298}{298-279}[/tex]
= 15.684
[tex]Q_H = 16667 J/s[/tex]
16667 / W = 15.684
W= minimum power supplied = 1062.7 W.
b )
If [tex]T_C=283K[/tex]
[tex]\frac{T_H}{T_H-T_C}=\frac{298}{298-283}[/tex]
=19.87
[tex]\frac{Q_H}{W} = 19.87[/tex]
[tex]W=\frac{Q_H}{19.87}[/tex]
[tex]W=\frac{16667}{19.87}[/tex]
= 838.8 W .
Match the following waves on the EM Spectrum with the correct letter;
Visible Light, Radio Waves, and X Rays
Answer:
(D) is visible light
Explanation:
(F) is xray and (B) is radio
The object having uniform velocity has zero acceleration, why?
The temperature measured outside the International Space Station is 2.7 Kelvin. How is it possible for empty space to have a temperature?
Answer:
people could just have a space heater or they are wearing warm clothes.
Explanation:
COMMON SENSE!!!!!
Use the example of the two soccer players in the ball suits to explain Newton's
third law.
Answer:
Newton's third law states that " for every action, there is an equal and opposite reaction". In soccer, when you kick the soccer ball you will feel the force of the kick back into your leg. You won't feel the force as much because your legs have more mass than the soccer ball.
A car, of mass 2.1 X 10^3 kg, travels in the horizontal plane around an unbanked curve of a radius of 275 m at a speed of 26 m/s, without sliding.
a) Determine the minimum coefficient of static friction between the tires and the road.
b) How would your answer in part a) be affected if the mass of the vehicle were greater because of the presence of heavy cargo?
c) How would your answer in part a) be affected if the curve were sharper, i.e., if its radius were smaller?
Answer:
Centripetal force is perpendicular to velocity and causes uniform circular motion. ... force exerted on a 900.0-kg car that negotiates a 500.0-m radius curve at 25.00 m/s. ... A car moving at 96.8 km/h travels around a circular curve of radius 182.9 m ... Because the car does not leave the surface of the road, the net vertical force ...
Explanation:
HE monda
why no one is helping me!!!
please help me quickly will mean alotttt!!
THE VOLTAGE ACROSS THE GROUPING U=12 VOLTE
TAKE R1=39
AND R2=68
The question is
CALCULATE i1 and i2
Answer:
Hi
Explanation:
OK so
I2 = U/R2
or
I2 = 12 : 68
I1 = U /R1
I1= 12 : 39
Answer:
Relax 5-Min guide
Explanation: