Answer:
Explanation:
That electrical energy will be dissipated in the form of heat, heating up the wire in the process. This heating is called Joule heating (James Prescott Joule) or ohmic heating or resistive heating. Which tells us that lower resistance (R) will produce higher current. Therefore lower resistance produces more heat.
If an object has a mass of 45 g and a volume of 5 mL, what is that object’s density? Show your calculation?
Your family drives to the mountains one weekend. You drive 55miles for the first hour and the next 3 hours
you travel a distance of 180miles. What's your average speed for the 4 hours ?
Answer:Jane drives at an average speed of 45 mph on a journey of 135 miles.
Explanation:
Question 29 (1 point)
Fluorescence is the production of light energy when an object is heated to a high temperature.
a) True
b) False
What respiratory structure controls breathing?
A.
diaphragm
B.
lungs
C.
heart
D.
trachea
Lungs is what helps u breath
Answer:
i think the answer is :lungs
HELPP ILL GUVE YOU LOTS OF POINTS EVERYTHING U WANT I REALLY NEED HELP
Answer:
ok so I'm going left to right
a) 3 2 1 4
b) i don't know
If you move 50 meters in 10 seconds, what is your speed?
Answer: 5 meters per second (5mps)
Explanation:
Simply take 50 and divide it by 10
[tex]\frac{50}{10} =5[/tex]
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (30pts)
Answer:
Decreasing
Explanation:
Use each of the following terms in a separate
sentence: insulation, heat engine, and thermal
pollution.
The old farm house had been wrapped in insulation and sided.
refrigerator may be considered to be a heat engine operated in reverse.
The warmed water may become a thermal pollution problem in terms of the receiving body of water.
I need help!! Any feedback, please?
Answer:
A. Quarter or less of the entire moon
Explanation:
This is because as the Moon revolves around the Earth, the light of the sun that is falling on the moon gets blocked by the Earth when we see the crescent moon.
That's why we only see the quarter or less of the entire moon shining on crescent moon night.
An 8 kg toddler is running at a speed of 10 m/s.
how much energy does he have?
Which best represents the reaction of calcium and zinc carbonate (ZnCO3) to form calcium carbonate (CaCO3) and zinc? Ca → ZnCO3 + CaCO3 → Zn Ca + ZnCO3 → CaCO3 + Zn CaCO3 + Zn → Ca + ZnCO3 CaCO3 + Zn + Ca → ZnCO3
Answer:
Ca + ZnCO3 → CaCO3 + Zn
Explanation:
Ca + ZnCO₃ = CaCO₃ + Zn
Ca + ZnCO3 → CaCO3 + Zn is the answer.
Here Ca and ZnCO₃ are reactant and CaCO₃ and Zn are product . Reactants are written on the left side of equation and product are written on the right side.
Answer:
The correct option is, Ca + ZnCO3 —> CaCO3 +Zn
Explanation:I got it right.
There are 2 employees considered for a promotion. Candidate A went to a top university (say Harvard), and achieved a top GPA (grade point average) and is generally considered one of the most knowledgable employees in the company, but their colleagues often complain abut having to work with candidate A on projects. Candidate B's colleagues have lots of praise for how candidate B is able to work as a team at achieving common goals, but candidate B went to a local community college and didn't receive a very high GPA. Which candidate do you think will or should get the promotion?
Answer:
Canidate B
Explanation:
Becuase he/she is good to work with, and will most likely be more determined.
Why did Kenyatta want to distance himself from the Mau Mau? Check all that apply.
They had no desire for independence.
The British were determined to crush the rebellion.
They were criminals and made achieving independence more difficult.
They were led by his political rivals.
They were members of the Kikuyu.
Answer:
B and C!
Explanation:
I just did it on edge. I hope this helps!
Which of the following scenarios demonstrates a transfer
between kinetic energy and potential energy?
a using a playground slide.
b
going up and down stairs.
C bouncing on a trampoline.
d all of the above.
Check it
Answer:
c
Explanation:
bouncing on a trampoline
Answer:
D: All of the Above
Explanation:
I checked C and was wrong so trust me it is D
How is the Physics definition of momentum different from the ""colloquial"" use of momentum
Answer:
Explanation:
You know, I never really thought about this very much. I've always just thought of it as M * V. But when you look at a dictionary definition, it says it is the motion of a body.
That means that speed can be a momentum. Speed is independent of direction. So the colloquial definition does not take into account a change in direction as being very relevant.
The answer then is direction. When physics uses v, it is also counting direction.
The attractive force between two objects that depends on their masses and the distance between them is _______?
Answer:
gravitational force
Explanation:
an object with mass attractive another object with mass
ANSWER:
GRAVITATIONAL FORCE
EXPLANATION :
Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.
What is friction ridge skin?
Two rocks are at the top of a building. Rock 1 is dropped from rest while Rock 2 is thrown horizontaly at a velocity of 5 ms.
What is the magnitude of the horizontal acceleration of rock 2?>
Omis 2
2 ms 2
5 ms 2
10 mis2
Answer:
I'm pretty sure the answer is 0 m/s²
Explanation:
The horizontal velocity of the second rock is 5 m/s, so if we pretend air resistance doesn't exist, it will maintain that horizontal velocity, meaning that there is no horizontal acceleration.
the condition required to work to be done
Answer:
work=f(costheta)
Explanation:
work is done when a force acts on a body and displaces it on the direction of force
Which of these is an example of work being done on an object a. Holding a heavy piece of wood at a construction site. b. Trying to push a car that doesn't move out of deep snow. c. Pushing a child on a swing. d. Holding a door shut on a windy day so it doesn't blow open.
Answer:
I would say the best choice, would be Choice C.
For all of these scenarios a force is being applied to displace an object. But the displacement occur in the case of trying to push a car and pushing a child on a swing. Thus, options b and c are correct.
What is work done?Work done in physics is the dot product of force and displacement. Therefore, every work done is associated with a force but not all force result in work done. Those force, which result in a displacement will do work done.
Holding a heavy piece of wood does not make a displacement in the object. Similarly, when we hold the door to stop we just apply a force and not displacing the door. In both cases work done is zero.
When we push a car to make it move and any movement from the side of the car result in a work done. Similarly in when we push a child in a swing we make the swing move a distance by applying force. Thus work is being done on the object.
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The idea of not wanting or doing too much or too little is called (ex. eat
way too much or starve yourself)
Answer: below
Explanation:
binge eating then purging. Often known as bulimia. It's an eating disorder. If you starve yourself you have anorexia. If its an idea you are paranoid. Or you are very depressed and you want to get rid of your emotions. It could be called starving yourself too. But you may be looking for the word Orthorexia
The hierarchy of traits is a structured progression of personality that begins with a few higher-order traits that result in
several lower-order traits, determining a person's response in a specific situation.
Please select the best answer from the choices provided
OT
OF
Answer:
true
Explanation:
hope u find this helpfull
10
Select the types of data that describe climate. (You may select more than one
correct answer)
one day's
Temperature
average ocean
depth
average
precipitation
annual wind
speed
Answer:
temperiture or annual wind speed.
Explanation:
4. Zyan is trying to swim across the English Channel in a north to south direction
at 5km/h. There is a 2km/h west to east current in the channel. What is his
resultant swimming velocity?
is the us warmer than antarctica?
Answer:
Yes
Explanation:
Antarctica is usually always cold.
A sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of
28m/s?. If the dryer barrel has a radius of 27.5cm, what is the tangential speed of the
sock?
Answer:
Tangential speed, V = 2.78 m/s.
Explanation:
Given the following data;
Centripetal acceleration = 28m/s²
Radius = 27.5cm to meters = 27.5/100 = 0.275 meters
To find the tangential speed;
Centripetal acceleration = V²/r
Substituting into the formula, we have;
28 = V²/0.275
V² = 28 * 0.275
V² = 7.7
Taking the square root of both sides, we have;
Tangential speed, V = 2.78 m/s.
The tangential speed of the sock will be 7.7 m/sec².Tangential speed is as the linear speed of any object travelling along a circular route.
What is tangential speed ?Tangential speed is defined as the linear speed of any item travelling along a circular route.
A point on the outside edge of a turntable travels further in one complete rotation than a point towards the center.
The given data in he problem is;
a is the centripetal acceleration =28m/s?
r is the radius of 27.5cm
v is the tangential speed of the sock=?
[tex]\rm a= \frac{v^2}{r} \\\\ \rm v= \sqrt{ar} \\\\ \rm v= \sqrt{28 \times 0.275 } \\\\ \rm v=7.7 \ m/sec^2[/tex]
Hence the tangential speed of the sock will be 7.7 m/sec².
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A horizontal force of 164 N is applied to move a 55 kg television set across a 9 m level surface. What is the work done by the force on the television set?
Answer:
Workdone = 1476 Nm
Explanation:
Given the following data;
Force = 164 N
Mass = 55kg
Distance = 9 m
To find the work done;
Workdone = force * distance
Workdone = 164 * 9
Workdone = 1476 Nm
Therefore, the work done by the force on the television set is 1476 Nm.
what units is time measured in
Answer:
The base unit for time is the second (the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance). The second can be abbreviated as s or sec.
Explanation:
True or false your vocal cords act like a guitar string when it comes to sound
Answer:
True
Explanation:
A ball has 17 J of kinetic energy and its mechanical is 25 J
If the ball has a mass of 3.2 KG what is it’s height above ground?
Answer:
0.255m
Explanation:
The total mechanical energy of the ball is given 25 J. The potential energy of the ball is 8 J. Then, the height of the ball above the ground is 0.25 m.
What is kinetic energy ?Kinetic energy of an object is the energy generated by virtue of its motion whereas potential energy is generated by virtue of its position at a height from the ground.
The sum of kinetic and potential energy of the object is called its mechanical energy.
given Ke of the ball = 17 J
mechanical energy = 25 J
then potential energy = 25 J - 17 J = 8 J.
We have the relation between potential energy, mass and height h as :
p = mgh .
given the mass m = 3.2 kg
g = 9.8 m/s²
then, h = p / (mg)
h = 8 J / (3.2 kg× 9.8 m/s² )
= 0.25 m.
Therefore, the height of the ball above the ground is 0.25 m.
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