Refer to the following illustration to answer this question.
Waves
To measure one wavelength, you would measure the distance between __________.
Question 16 options:
D and B
C and A
A and B
C and F
Answers
Answer:
C and E
Explanation:
The wavelength of a transverse wave can be measured as the distance between two adjacent crests. The wavelength of a longitudinal wave can be measured as the distance between two adjacent compressions. Short-wavelength waves have more energy than long-wavelength waves of the same amplitude.
Related Questions
helppppppp meeee please
Answers
Answer:
B.X substance = sulfur dioxide, Y substances = sodium carbonate
Explanation:
sorry for wrong because that is my predicted
eeg measures the synchronous electrical activity of the _____.
Answers
Pythagoras theorem is used to find the resultant force when angle between 2 forces is _________ degrees. asap
0
45
90
180
Answers
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Pythagoras theorem is used to find the resultant force when angle between 2 forces is 90 degrees ~
the weight of a box having of 100 kg is __n
Answers
Answer:
mom
Explanation:
look at picture, need to know net force, whether they are balanced or unbalanced and whether they are accelerated or not accelerated!
Answers
Answer:
1) 100 ...unb. and accelerate
2) 7...unb. and accelerate
2. A roller coaster moves 85 m horizontally, then travels 45 m at an angle of
30.0° above the horizontal. What is its displacement from its starting
point? Use graphical techniques.
Answers
(Here you go sorry if this didn’t help)
An athlete spins in a circle and throws a 1.6-kg discus. The radius of the discus's path is 1.0 m, and he releases it with an angular speed of 15.0 rad/s. The athlete spins for a total of 1.2 s before releasing the discus.
– What is the tangential speed of the discus at release?
– What is the centripetal acceleration of the discus?
– What is the centripetal force on the discus?
giving Brainliest for full and proper answers! thank you for anyone who tries to help/explain :)
Answers
(a) The tangential speed of the discus at the release is 15 m/s.
(b) The centripetal acceleration of the discus is 225 m/s².
(c) The centripetal force on the discus is 360 N.
The given parameters;
mass of the discus, m = 1.6 kgradius of the path, r = 1 mangular speed, ω = 15 rad/stime of motion, t = 1.2 sThe tangential speed of the discus at the release is calculated as follows;
[tex]v = \omega r\\\\v = 15 \ rad/s \ \times 1 \ m\\\\v = 15 \ m/s[/tex]
The centripetal acceleration of the discus is calculated as follows;
[tex]a_c = \frac{v^2}{r} \\\\a_c = \frac{15^2}{1} \\\\a _c = 225 \ m/s^2[/tex]
The centripetal force on the discus is calculated as follows;
[tex]F_c = ma_c\\\\F_c = 1.6 \times 225\\\\F_c = 360 \ N[/tex]
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The force of gravity between two students is 3.5E-8 Newtons. If
the first students mass is 71.0 kg and the second students mass is
67.0 kg, how far apart must the students be from each other?
Answers
Answer:
r = 9521.29
Explanation:
Given:
Gravitational Force = [tex]3.5E-8[/tex] (Fg)
Student Mass 1 = 71 kg (M)
Student Mass 2 = 67kg (m)
Gravitational constant = [tex]6.67E-4[/tex] (G)
[tex]Fg=\frac{GMm}{r^{2} }[/tex]
[tex]r^{2} =\frac{GMm}{Fg}[/tex]
[tex]r^{2} =\frac{(6.67E-4)*(71)*(67)}{3.5E-8}[/tex]
[tex]r= \sqrt{90654828.57}[/tex]
[tex]r=9521.282927[/tex]
r = 9521.29
Look at the circuit below. What is the potential difference across lamp 2?
Answers
The potential difference across lamp #2 is 4.5 volts.
Which vehicle will have more kinetic energy, a parked
semitruck or a car moving at 50 km/h?
Answers
Answer:
a semi truck
Explanation:
Career discovery
English language art
Science
Studiesi
Answers
Answer:
you could become a science teacher and if you do english literature too then an english teacher
Explanation:
you will just need to get good GCSEs and if you want to you can further your education. e.g, college, university.
Explain how bats use ultrasound to catch a prey
Answers
Answer:
Ultrasound is used by bats to navigate (move) and catch prey. Ultrasonic squeaks are produced by bats. These squeaks ponder prey and then return to the bat's ear. This provides bats with information about the location of prey, allowing them to catch it.
Explanation:
The symbols used in language have no direct relationship between the word and the object or idea.
Answers
Answer:
The symbols used in language have no direct relationship between the word and the object or idea. Underextension in language occurs when a child incorrectly uses one word to describe other objects or actions that are similar to that word. ... Morphemes are the smallest distinctive sound units in a language.
Explanation:
Answer:
True
Explanation:
e2021
calculate the mass of the earth if the radius of the earth is 6.38 × 10^6
Answers
Answer:
C
Explanation:
C is i thing
Make a
claim about whether a mixture could be made
up of only elements and no compounds.
Summarize evidence to support the claim and
explain your reasoning.
Answers
Answer:
Yes, a mixture can be made up of just elements and no compounds. The elements never experiance a chemical interaction and stay only in physical contact with each other.
BRAILIEST PLS I NEED LEVEL UP!
NEED HELP!!! ANSWER THESE 5 QUESTIONS FOR 25 POINTS!!!! PLEASE ANSWER!! I WILL GIVE YOU BRAINEST
1. Jerome explains to his doctor that because he spends a lot of time at his desk, he makes sure that his chair supports good posture. But when he is home, he spends his time on an old, squishy couch that offers very little support. He figures that since he spends most of his time at work, he does not need to worry about his home furniture as much. How would Jerome’s doctor MOST likely reply?
A.
Jerome’s thinking is correct since he spends most of his time at work.
B.
Jerome should bring his chair from work home with him on the weekend.
C.
If Jerome’s standing posture is good, he does not have to worry about his seated posture.
D.
Sitting properly is important in all contexts, so Jerome should consider his seating at home.
2. Guillermo has decided that he wants to be healthier, so he starts jogging. He has been at it for a week, but he is getting frustrated because he cannot run very far without getting out of breath. He is beginning to think that this is not a good exercise for him since he is not very good at it. What BEST explains why Guillermo is struggling?
A.
He probably does not have good form when he is exercising.
B.
He likely has heart or lung problems that he was not aware of.
C.
He does not have much endurance since he is new to exercise.
D.
He is just not good at jogging and needs to try something else.
3. Which is the BEST example of the kind of mechanics that are studied in sports biometrics?
A.
the average attendance at a sporting event
B.
how a new sport becomes popular in a community
C.
the movement of the wrist when hitting a tennis ball
D.
the median height of the most successful hockey goalies
4. Ewan had a resting heart rate of about 110. What does this indicate?
A.
His heart rate is perfectly average.
B.
He probably has a high metabolism.
C.
He needs to work on raising his resting heart rate.
D.
His heart rate is high and could indicate a problem.
5. Why is acceptance an important part of building a healthy lifestyle?
A.
Exercise will probably not change much in your life.
B.
Healthy lifestyles often create a lot of disappointment.
C.
If you understand your limitations, you are less likely to be frustrated.
D.
Finding the energy to exercise can be hard, so you should limit your goals.
PLEASE NO LINKS
Answers
2. C
3. C
4. D
5. D
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I really hope this helps! These answers are the most reasonable.
What are 5 examples of expansion and contraction? What are their benefits?
Answers
Answer:
If you hold a hot glass tumbler under cold water, it will crack
Explanation:
This is because the outer surface of the glass comes in direct contact with cold water and contracts more compared to the inner surface.
This is one example I know.
a Name the store of energy when you are
pressing downwards on the stretchy skin
of the trampoline
Answers
17. Explain how to calculate the density of an irregular shaped object such as a
rock.
Your
answer
Answers
Answer:
Q andA : Density of an irregular shape
1: the density of something is just th mass divided by the volume:D=m\V
2: As described in the previous question the density is given by D= M\V
3: the density just means how much mass per volume.
4. A net force of 15 N is exerted on a book to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the
book.
a. 0.33 kg
b. 2 kg
c. 3 kg
d. 45 kg
Answers
Answer:
3 kgExplanation:
The mass of an object given it's force and acceleration can be found by using the formula
[tex]m = \frac{f}{a} \\ [/tex]
f is the force
a is the acceleration
From the question we have
[tex]m = \frac{15}{5} = 3 \\ [/tex]
We have the final answer as
3 kgHope this helps you
what’s the energy of motion
A.thermal energy
B. temperature
C. heat
D. kinetic energy
E.potential energy
Answers
Answer:
D. Kinetic energy
hope this helps
Answer:
D. Kinetic energy
Explanation:
The combination of kinetic energy and potential energy is known as mechanical energy
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What is the power of a crane that lifts a 120 N load 14 m in 3.6 s?
Answers
Answer:
1000n
Explanation:
hop it helps
Answer:
467 watts
Explanation:
Power is = to work/time. Work is = to force (N) times distance from starting point. So first, calculate work. 120N x14m , which is equal to 1680 joules. so then plug it into your power formula. 1680 joules/ 3.6 seconds= 466.666...7, which rounds to 467 watts.
What is the net force needed to accelerate a 1 kg textbook with an acceleration of
4 m/s2
Answers
Answer:
4 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question
mass = 1 kg
acceleration = 4 m/s²
We have
force = 1 × 4 = 4
We have the final answer as
4 NHope this helps you
is there friction when an object stands still?
Answers
Answer:
No
Explanation:
The gravitational force always acts opposite the direction of motion. Air resistance only acts on objects that are moving. The force of friction does not exist when an object is stationary. All objects experience a normal force.
btw pls mark as branliest! Thanks!
An object has a acceleration of 10m/s^2 if the net force acting on this object were halved, what would the new acceleration of the object be
Answers
Answer:
As we increase the force on an object the acceleration increases proportionally. Since the mass does not change as the acceleration increases, we can say that force is equal to acceleration. Therefore, if you double the force you double the acceleration. ... Therefore, mass is inversely proportional to accelerationExplanation:I hope I helped you #learn from khabyIf an object has an acceleration of 10m/s^2 if the net force acting on this object were halved, then the acceleration of the object would become half as well because the force and the acceleration are directly proportional.
What is acceleration?
The rate of change of the velocity with respect to time is known as the acceleration of the object.
As given in the problem an object has an acceleration of 10 m/s^2 if the net force acting on this object were halved, then the new acceleration of the object be 5 meters / second².
Force = mass × acceleration
As the force is directly proportional to the acceleration of the object keeping the mass of the object constant.
Thus, the acceleration of the object would become 5 meters / second².
To learn more about acceleration from here, refer to the link;
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name two possible ways in wivh fossils can be dated and define them
Answers
Answer:
There are two main methods determining a fossils age, relative dating and absolute dating. Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.
Mark me with a crown
Answer: dna
Explanation:
sorry if this is wrong lol
A 10 kg box is motionless on the floor. If the coefficient of static friction is 0.4 and
the coefficient of kinetic friction is 0.3 (between the box and the floor), find the
force required to start the block in motion
Answers
The force required to start the given box in motion is 39.2 N.
The given parameters;
mass of the box, m = 10 kgcoefficient of static friction, [tex]\mu_s[/tex] = 0.4coefficient of kinetic friction [tex]\mu_k[/tex] = 0.3The force required to start the box in motion must be greater or equal to static frictional force.
The magnitude of the force is calculated as follows;
[tex]F = \mu_s F_n\\\\F = \mu_s mg\\\\F = (0.4) \times (10) \times (9.8)\\\\ F = 39.2 \ N[/tex]
Thus, the force required to start the box in motion is 39.2 N.
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Answer:
Explanation:
uk=0.3
us==00.4
f=10
ground acceleration =9.8
f=10×0.4×9.8=39.2
Two objects feel 200 N of force due to gravity between them. If the mass of one object was doubled, what would be the new force of gravity?
Answers
Answer:
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A medium-sized apple provides about 95.0 Calories of energy.
(a) Convert 95.0 Cal to joules.
(b) Suppose that amount of energy is transformed into kinetic energy of a 2.03 kg object initially at rest. Calculate the final speed of the object (in m/s).
(c) If that same amount of energy is added to 3.79 kg (about 1 gal) of water at 21.7°C, what is the water's final temperature (in °C)? The specific heat of water is
c = 4186
J
(kg · °C)
.
Answers
A. 95 Cal is equivalent to 397480 J
B. The final speed of the object is 625.78 m/s
C. The final temperature of the water is 46.8 °C
A. Converting 95 Cal to Joules
1 Cal = 4184 J
Therefore,
95 Cal = 95 × 4184
95 Cal = 397480 JThus, 95 Cal is equivalent to 397480 J
B. Determination of the speed of the object
Kinetic energy (KE) = 397480 J
Mass (m) = 2.03 Kg
Velocity (v) =?KE = ½mv²
397480 = ½ × 2.03 × v²
397480 = 1.015 × v²
Divide both side by 1.015
v² = 397480 / 1.015
Take the square root of both side
v = √(397480 / 1.015)
v = 625.78 m/sTherefore, the speed of the object is 625.78 m/s
C. Determination of the final temperature of the water
Mass of water (M) = 3.79 kg
Initial temperature of water (T₁) = 21.7 °C
Specific heat capacity of water (C) = 4186 J/KgºC
Heat (Q) = 397480 J
Final temperature (T₂) =?Q = MC(T₂ – T₁)
397480 = 3.79 × 4186 (T₂ – 21.7)
397480 = 15864.94 (T₂ – 21.7)
Clear the bracket
397480 = 15864.94T₂ – 344269.198
Collect like terms
397480 + 344269.198 = 15864.94T₂
741749.198 = 15864.94T₂
Divide both side by 15864.94
T₂ = 741749.198 / 15864.94
T₂ = 46.8 °CTherefore, the final temperature of the water is 46.8 °C
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A 15-volt power supply is used to power a circuit with two resistors in series. The voltage drop across R1 is 5 volts. What is the voltage drop across R2?
5 volts
20 volts
10 volts
0 volts
A 10-volt power supply is used to power a circuit, producing a current of 2 A. If total resistance of circuit is doubled, how will this affect the circuit?
A. Voltage drop across each resistor will all double to match change in resistance
B. The current will change so that the voltage drop for a complete loop through the circuit becomes 5 V.
C. The current will change so that the voltage drop for a complete loop through the current remains at 10 V.
D. The voltage drop across each resistor will be unaffected because each will remain at 0 V
Answers
(1) The voltage drop in the second resistor is 10 V.
(2) The voltage drop across each resistor will all double to match change in resistance.
The given parameters:
voltage in the circuit, V = 15 Vvoltage drop in first resistor, V1 = 5 VThe total voltage in a series circuit is given as;
[tex]V_T = IR_1 + IR_2\\\\V_T = V_1 + V_2[/tex]
The voltage drop in the second resistor is calculated as follows;
[tex]V_2 = V_T - V_1\\\\V_2 = 15 - 5\\\\V_2 = 10 \ V[/tex]
(2)
voltage supply, V = 10 Vcurrent, I = 2 AThe resistance of the circuit:
[tex]R = \frac{V}{I} = \frac{10}{2} = 5 \ ohms[/tex]
When the total resistance is doubled;
In series circuit, the current in each resistor is constant, the voltage drop is calculated as;
[tex]V = IR\\\\V = 2 (5+5)\\\\V = 20 \ V[/tex]
Thus, we can conclude that the voltage drop across each resistor will all double to match change in resistance.
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