Physics High School
Answers
Answer 1
Answer:
x = 50°
Explanation:
52° + 78° + x = 180° (Because of the angle sum property)
=> 130° + x = 180°
=> x = 180° - 130°
=> x = 50°
Answer 2
Answer:
50°
Explanation:
Step 1:
52° + 78° + x = 180° Sum of a Δ
Step 2:
130° + x = 180° Combine Like Terms
Step 3:
x = 180° - 130° Subtract 130° on both sides
Answer:
x = 50°
Hope This Helps :)
Related Questions
Janayah runs 200 yards in 40 seconds. How fast is she running
Answers
Answer:
She is running 5 yards a second Or 300 yards a minute
Explanation:
Divide 200 by 40 to get the rate of speed in seconds
Answer:
≈ 10.23mph
Explanation:
1760yrds in 1 mile
200yrds to miles is:
200/1760 = .1136miles
3600sec in 1 hr
40sec to hours is:
40/3600 = .011111hrs
Now we find her speed in miles per hour:
.1136mi/.01111hrs ≈ 10.23mph
what’s an example of Newton’s 3rd law of motion?
Answers
Answer:for ever reaction there is an equal and opposite reaction
Explanation:
Answer:
, when you jump high, your legs apply a force to the ground.
Explanation:
what state of matter is the sun
Answers
Answer:
the sun is plasma
Explanation:
it is a hot ball of gas made out of oxygen
Answer:
Plasma
Explanation:
All stars are made of gas, however the sun is so hot that most of that gas is plasma
A place with a tropical climate would most likely be located (1 point)
a. near the equator
b. at high altitudes
c. near the poles
d. in the middle of a continent
Answers
Answer:
near the equator
Explanation:
the equator is at the center of both hemispheres, and gets the most direct sunlight year round. Therefore, it would be the most tropical.
Question 7
1 pts
According to the modern model of an atom,
-the number of protons in the atoms of one type of element will vary.
-moving electrons form an electron cloud in an atom.
-electrons are located in the nucleus of an atom.
-neutrons have a positive charge.
Answers
Answer:
I Believe The Answer Is B
Explanation:
2. Can you rearrange the equation F = kx to get k on one side of the equation
(on its own!). Now, can you rearrange it to get x on its own?
Answers
k = f/x
x = f/k
( / means divide )
The equation connecting force and the displacement k is F= k x. From the spring constant k can be found by dividing F by x and similar to get x by dividing F by k.
What is force?
Force is an external agent acting on a body to change it from the state of motion or rest. There are various kinds of force namely magnetic force, frictional force, gravitational force etc.
Force applied on a body if result in displacement of the body it is said to work done on the body. An elastic body like a spring can be stretched or compressed by applying a force on it. Let the change in length or displacement of the elastic body be x.
Then, the force applied on it to make the displacement x is directly proportional to x.
F = k x, where k is the proportionality constant here called the spring constant.
From this the spring constant k = F/x
Similarly, if we know the force f and spring constant k, then x = F/k.
To find more on spring constant, refer here:
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what is steam engine it's action and reaction
Answers
Explanation:
steam shooting out through 2 l shaped Falls creators and action force that is accompanied by backward reaction in force in opposite direction
will the value of g be affected by the radius of the earth? consider the real shape of the earth. compare the acceleration due to gravity for the freely falling object in the poles of the earth and other regions.
Answers
Answer:
Yes, the value of g affected by the radius.
Explanation:
The formula for the force of gravity of 2 objects is
[tex]F_{gravity} = G\frac{m_{1}m_{2}}{r^2}[/tex], where m1 and m2 are the masses of the 2 objects, r is the radius, and G is the gravitational constant, which is approximately [tex]6.67 \cdot 10^{-11}[/tex].
Therefore, as the radius if bigger, the force of gravity is going to be smaller exponentially.
HELP, 15 POINTS!
How does uniform motion relate to velocity and acceleration?
Answers
For an object to move in a uniform motion it has to have either a constant velocity or a constant acceleration. If the object has a constant velocity then it is moving at zero acceleration and this means moving with out slowing down or speeding up.
Undigested and unabsorbed materials from the
small intestine pass into the
a. gall bladder
b. stomach
c. colon
d. liver
Answers
It passes it from the ileum into the cecum, the beginning of the large intestine
The unabsorbed and undigested food passes from the ileum into the cecum which is the beginning of the large intestine
What effect charged objects have on uncharged objects
Answers
Answer:
Uncharged objects: In spite of what the standard says, an uncharged object will not be attracted or repelled from a charged object. Instead, the charged object will cause the uncharged object to become charged, with a positive charge on one side and a negative charge on the other side. This process is called induction.
Explanation:
3 A spider runs along the top of a wall at a speed of 0.24 m/s. How far will it run
in 5 s?
Answers
Answer:
The answer is 1.2 m
Explanation:
In order to find the distance covered we use the formula
distance = velocity × time
From the question
velocity = 0.24 m/s
time = 5 s
We have
distance = 0.24 × 5
We have the final answer as
1.2 m
Hope this helps you
An Alaskan rescue plane traveling 41 m/s
drops a package of emergency rations from
a height of 165 m to a stranded party of explorers.
The acceleration of gravity is 9.8 m/s
2.What is the vertical component of the velocity
just before it hits? (Choose upward as the
positive vertical direction)
Answer in units of m/s.
Answers
Answer:
-56.9 m/s
Explanation:
Given:
Δy = -165 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: v
v² = v₀² + 2aΔy
v² = (0 m/s)² + 2 (-9.8 m/s²) (-165 m)
v = -56.9 m/s
Which statement is equivalent to Newton's first law? A. If no net force acts on an object, the motion of the object does not change. B. The force of an object is equal to the mass times its acceleration. C. The unit of force is the newton. D. For every action there is an equal and opposite reaction.
Answers
Answer:
A
Explanation:
Hi:)
If no net force acts on an object, the motion of the object does not change. This statement is equivalent to Newton's first law. Hence, option (A) is correct.
What is force?
Physics defines force as the push or pull that modifies the velocity of a massed object. The ability to change a body's resting or moving condition is referred to as an external force.
According to Newton's First Law, a body in uniform motion or at rest will remain in that state up to and unless a net external force acts on it.
The key idea here is that an object will maintain a constant velocity if there is no net force produced by unbalanced forces operating on it.
Hence, if no net force acts on an object, the motion of the object does not change. This statement is equivalent to Newton's first law.
Learn more about force here:
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During his recent skydiving adventure, Luke Skyfaller has reached a terminal speed of 9.8 m/s as he approach the ground with his parachute. During an attempt to snap one last photo with his camera Luke fumbled it from a height of 52.8 m above the ground determine the speed with which the camera hits the ground.
Answers
Answer:
The correct solution is "33.62 m/s".
Explanation:
The given values are:
Speed
u = 9.8 m/s
Height
s = 52.8 m
As we know,
⇒ [tex]v^2 = u^2 + 2as[/tex]
On putting the estimated values, we get
⇒ [tex]=(9.8)^2+2\times 9.8\times 52.8[/tex]
⇒ [tex]=96.04+1034.88[/tex]
⇒ [tex]=\sqrt{1130.92}[/tex]
⇒ [tex]=33.62 \ m/s[/tex]
In a summer storm, the wind is blowing at a velocity of 8 m/s north. Suddenly in 3 seconds, the winds velocity is 23 m/s north. What is the winds acceleration?
Answers
Answer:a=v-u/t
=23-8/3
=5m/s hope you got your answer
Explanation:
Which of the following units could represent acceleration?
a cm/h
b cm/s
c m/h
d km/h?
Answers
Answer:
To be precise; well, S.I. Unit of acceleration is m/s.
When scientists replicate experiments they will often do so under different conditions than the original investigations. Why might this be helpful? Why do you think the astronaut replicated Galileo's investigation on the moon? -This is for science
Answers
Answer:
Scientists replicate other scientists' experiments to test if the result of the original investigations being tested should become a law, therefore, meaning if it should be generally accepted or discarded.
However, using different conditions than the conditions used in the original investigations is a method employed by scientists usually to:
1. Check if the values, equipment, used by the original investigations can give similar results if the values are lowered or increased and to also test if the result of the original investigations can be the same even if conditions are adjusted.
2. Check the accuracy of some experimental results especially when those original investigations are the first to speak about a new topic/finding. Definitely, other scientists would use different conditions to provide a broad knowledge and a general acceptance.
Galileo's investigation on the moon rejected popular beliefs of the content of the moon paved the way for further investigations by other astronauts. Galileo performed his investigations with equipment centuries back, coupled with the fact that his investigation didn't support an existing belief that paved the way for his investigation to be replicated by other astronauts.
Which of the following determine the chemical properties of an element?
A)Its protons
B)Its inner shell electrons
C)The size of its nucleus
D)Its valence electrons
Answers
Answer:
D, valence electrons.
Explanation:
Since the number of shells are dependent on the number of valence electrons, which determines the period of the element. Because each shell of an element holds a total of 8 valence electrons, there is a chemical association that is being made between the outer electrons and the atom.
Answer:
The correct answer is D. Its valence electrons.
Explanation:
The valence electrons are those that participate in reactions with other elements. The fewer valence electrons that an element has, the less stable it becomes; an element with a full valence electron shell does not frequently interact with other elements. In this way, the valence electrons determine the chemical properties of an element.
Hope this helps!
what are the bonds between carbon atoms in diamond?
Answers
They are bonded by iconic bond, Coordinate bond, hydrogen bonds, and Convalent bonds,
Which type of force is shown in the image?
Answers
Answer:
D contact force
Explanation:
Which of the statements about the nitrogen cycle is not true? Animals get nitrogen by eating plants or other animals Animals get nitrogen by eating plants or other animals Decomposers break down waste to yield ammonium Decomposers break down waste to yield ammonium Nitrogen moves back and forth between the atmosphere and living things Nitrogen moves back and forth between the atmosphere and living things All plants generate nitrogen in their roots
Answers
Answer:
decomposers break down waste to yield ammonia.
Explanation:
The nitrogen cycle is the process by which nitrogen circulates among the atmosphere, terrestrial, and marine ecosystems and is converted into multiple chemical forms through both biological and physical processes.
In the nitrogen cycle, decomposers do not break down waste to yield ammonia.
So, the option ''decomposers break down waste to yield ammonia'' is correct.
Complete the sentence using word balanced, normal or tension.
Equal and opposite forces that act on the same object are called____
forces?
Answers
These are called Balanced forces
a) On which hemisphere does Bhutan lie on the earth?
Answers
Answer:
Northern Hemisphere
Explanation:
The latitude of Bhutan is 27.5142° N, placing the country in the northern hemisphere above the equator
How fast Will a brick be going after it falls for 2.5 seconds?
Answers
Answer:
25 m/s
Explanation:
Initial Velocity = 0 m/s
Time = 2.5 m/s
Acceleration due to gravity = 9.8
Final Velocity = ?
By the formula,
[tex]V_{f} = V_{i} + at[/tex]
[tex]V_{f}= 0 + 10 x 2.5[/tex]
Vf = 25 m/s
After 2.5 seconds the velocity of ball will be 24.5 m/s.
We have a brick falling from a certain height.
We have to find the velocity of the brick after 2.5 seconds of falling.
What do you mean by Free fall ?
The motion of any object under the influence of gravity alone is called as free fall.
According to the question -
Initial velocity = u = 0 m/s
Final velocity = v m/s (say)
g = 9.8 m/[tex]s^{2}[/tex]
t = 2.5 seconds
Using the first equation of motion -
v = u + at
v = 0 + gt
v = 9.8 x 2.5 = 24.5 m/s
Hence, after 2.5 seconds the velocity of ball will be 24.5 m/s.
To solve more questions on Kinematics, visit the link below-
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1.When I cook an egg in a microwave oven, the device uses electromagnetic energy to increase the kinetic energy of particles of matter in the egg.
2.Many stoves and ovens have exhaust fans overhead to remove the rising warm air from the kitchen. The thermal energy is added to air and it rises.
3.When I cook an egg in a pan, thermal energy is transferred as the egg touches the hot surface of the pan. The thermal energy is transferred as objects touch.
choose which one are Conduction, Convection or Radiation
Answers
Answer:
1: Radiation 2: Convection 3: Conduction
Explanation:
A tissue cross-section viewed on a microscope slide shows a cell of almost rectangular shape with dimensions 6.9 × 10-4 cm by 1.1 × 10-3 cm. Calculate the cross-sectional area of the cell. Express the area in powers of ten notation and use the appropriate number of significant digits for the number multiplying the power of 10.
Answers
Answer:
The cross-sectional area is [tex]A = 7.59 *10^{-11} \ m^2[/tex]
Explanation:
From the question we are told that
The dimension of the cell is 6.9 × 10-4 cm by 1.1 × 10-3 cm = [tex]6.9*10^{-6} \ m \ by\ 1.1*10^{-5} \ m[/tex]
Generally the cross-sectional area is mathematically represented as
[tex]A = 6.9*10^{-6} * 1.1*10^{-5}[/tex]
=> [tex]A = 7.59 *10^{-11} \ m^2[/tex]
Which statement is true?
Select one:
O a. Social media is not a reason some people have negative attitudes
towards their bodies.
O b. Physical fitness is a fad.
O c. You must be an athlete to be physically fit.
Od. Heredity does not control your ability to participate.
Answers
Answer:
A, I think, hope this helps!
Answer:
i think d because some people are talented even though they are suffering
What is significant about the temperature 0 K
A. Matter no longer exists
B. Ice melts
C. Water freezes
D. Particles no longer move
Answers
Answer: I's either A. Matter no longer exists or D. Particles no longer move
Explanation:
Sorry if I get it wrong
Hope his helps :)
Answer:
d
Explanation:
Which best describes the definition for the atomic mass of an element?
It is a weighted average of the masses of an element’s isotopes.
It is a ratio based on the mass of the carbon-12 atom.
It is the sum of the protons and neutrons in one atom of the element.
It is twice the number of protons in one atom of the element.
Answers
Answer:
It is a weighted average of the masses of an element’s isotopes.
Explanation:
The best definition of the atom mass of an element is that it is a weighted average of the masses of an element's isotopes.
Isotopes of an element have the same electronic configuration but differ in only their masses. The atomic mass of an element can be derived from the geonormal abundances of this isotopes. It is the average of all the isotopes of an element.
Atomic mass = ∑m[tex]_{i}[/tex] a[tex]_{i}[/tex]
where m[tex]_{i}[/tex] is the mass of the isotope i
a[tex]_{i}[/tex] is the abundance of the isotope i