Answer: As you probably have seen in the ocean or a lake, the stronger the wind, the higher the waves. The period and wavelength can be expressed in terms of their reciprocals, the wave frequency ω = 2(pi)/T, and the wave number κ = 2(pi)/λ.
Explanation: To find the period, we solve for T=1f, given the value of the frequency (f=2s−1). T=12 s−1=0. 5 s. Since one definition of wavelength is the distance a wave has traveled after one complete cycle (or one period), the values for the wavelength (λ=0.9m) as well as the frequency are given.
A hockey stick strikes a hockey puck of mass 0.17 kg. If the force exterted on the hockey puck is 35.0 N and there is a force of friction of 2.7 N opposing the motion. what is the acceleration of the hockey puck?
Choices:
0.0054 m/s^2
0.005 m/s^2
200 m/s^2
190 m/s^2
Answer:
[tex]a=190\ m/s^2[/tex]
Explanation:
Mass of a hockey puck, m = 0.17 kg
Force exerted by the hockey puck, F' = 35 N
The force of friction, f = 2.7 N
We need to find the acceleration of the hockey puck.
Net force, F=F'-f
F=35-2.7
F=32.3 N
Now, using second law of motion,
F = ma
a is the acceleration of the hockey puck
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{32.3}{0.17}\\\\a=190\ m/s^2[/tex]
So, the acceleration of the hockey puck is [tex]190\ m/s^2[/tex].
The magnitude of acceleration of the hockey puck is 190 m/s² .
Given data:
The mass of hockey puck is, m = 0.17 kg.
the magnitude of external force on the puck is, F = 35.0 N.
The magnitude of force of friction is, f = 2.7 N.
We need to find the net force acting on the puck first. For that consider the applied force in the x-direction. Then net force is,
F' = F - f
Solving as,
F' = 35.0 - 2.7
F' = 32.3 N
Now, use the Newton's Second law to obtain the magnitude of acceleration (a) as,
F' = ma
Solving as,
32.3 = 0.17 (a)
a = 32.3/0.17
a = 190 m/s²
Thus, we can conclude that the magnitude of acceleration of the hockey puck is 190 m/s² .
Learn more about the Newton's law of motion here:
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how many current can absorb human body
Answer:
about 10 milliamperes
Explanation:
currents above 10ma can paralize or "freeze bodies"
Can someone please help me?
Answer:
1.0 A
Explanation:
how is meiosis like binary fission?
If you know the answer please answer the following question down in the picture below.
Answer:
the answer is C
I hope I helped (◍•ᴗ•◍)❤
A dolphin swims 1.85 km/hr how far has the dolphin traveled after 0.6 hours
A 1.11km
B 3.08km
C 0.32km
D 1.85km
Answer:
The answer is option AExplanation:
In order to find the distance covered we use the formula
distance = velocity × timeFrom the question
velocity = 1.85 km/hr
time = 0.6 hours
We have
distance = 1.85 × 0.6
We have the final answer as
1.11 kmHope this helps you
What is the momentum of an object with a mass of 60 kg and velocity of 10 m/s?
Explanation:
Linear momentum= Mass*Velocity
P=mv
P=60*10
P=600Kg m/s
What is most occurring type of element on the periodic table?
Answer:
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
Explanation:
14. Give an example of condensation.
Condensation is the water on the outside of a cold cup of water on a hot day.
which of the following includes an example of a chemical property of an element?
a. aluminum is solid at room temperature
b. sulfur is not shiny and is not malleable
c. sodium is a solid at room temperature and reacts to other elements.
d. silicone is shiny and is a poor conducted of electricity
Answer:
d. silicone is shiny and is a poor conducted of electricity
The best option that describes an example of a chemical property of an element is silicone is shiny and is a poor conductor of electricity. Option D is correct.
The chemical properties of elements are those properties that are noticeable during the course of a chemical reaction.
Aluminum is solid but not at room temperature. The elements that are solid at room temperature are iron, zinc, gold, and silver. Hence option is incorrect. The same is applicable to options B and C.
The best option that describes an example of a chemical property of an element is silicone is shiny and is a poor conductor of electricity
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1.
In 10 seconds a car accelerates 4m/s? to 50 m/s.
How fast was the car going before it accelerated?
2.
Variables:
Equation and Solve:
In 10 seconds a car accelerates 4m/s2 to 50 m/s. How fast was the car going before it accelerated?
Answer:
i love devon bostick
Explanation:
cause....... i do
Answer: It was going 4 m/s
Explanation:
If a chemical reaction begins with 23 atoms of sodium, how much sodium will be present at the end of the reaction?
Surfaces on the same body are assumed to experience meteorite impacts with the same frequency. If this is true, what could account for the stark contrast in impact crater density on bordering regions of Ganymede in the photo?
Answer:
The surface with fewer impact craters is a newer surface. It hasn’t been impacted as many times as the older surfaces
Explanation:
Sample Answer
Answer:
Newer surfaces are less damaged by impact craters, because they are less damaged by impact.
Explanation:
This is my answer.
scientific findings that prove the strong nuclear force exsist
Answer: The strong nuclear force is one of the four fundamental forces in nature; the other three are gravity, electromagnetism and the weak force. As its name implies, the strong force is the strongest force of the four. It is responsible for binding together the fundamental particles of matter to form larger particles
Which statement about mass and inertia is not true?
A. Both mass and inertia play a role in Newton's first law.
B.Mass is a quantitative measurement of inertia.
C. The tendency of an object to remain at rest results from a property called inertia.
D.Newton's first law is sometimes called the relative inertia law.""
Answer:
D. Newton's first law is sometimes called the relative inertia law.
Explanation:
Newton's first law of motion states that an object at rest will stay at rest and that in motion will stay in motion with same speed and in the same direction unless an unbalanced force acts on it. It is also called the law inertia. Mass and inertia play a role in this law because mass is a quantity that mainly depends on inertia in that a body with more inertial will exhibit more mass.
A bus trip covers 191 km and takes 4 hours and 15 minutes. What is the average speed of the bus in kilometers per hour?
Answer: 46 kph
Explanation:
191 ÷ 4.15 = 46.02
It might not be right
What are the three components of the FITT acronym associated with overload and progression?
A.
frequency, intensity, and type
B.
time, frequency, and intensity
C.
fitness, intensity, and time
D.
type, intensity, and fitness
Answer:
B
Explanation:
What would the density of a liquid that has a mass of 275 grams and a volume of 200 mL?
Answer:
Mathematically: D = m/v. If you know what liquid you have, you can look up its density in a table. Once you know that, all you have to do to find the mass of the liquid is to measure its volume. Once you know density and volume, calculate mass using this relationship: mass = density • volume
Explanation:
Which statement best defines work.
A) Work is the time it takes to move an object once acted upon by a force
B) Work occurs when balanced forces act on a object and cause movement in the direction of these forces
C) Work occurs when a force causes motion of an object, and this motion is the same directional the applied force
D) Work is the distance over time that an object moves once acted on by a force
The unit we use to measure speed is
Answer:
However, to mention a few, there are other units of speed such as meters per second, feet per second, light-years per millennium, and knots. Feet per second, but specially meters per second are usually used to measure speed of animals, humans, and free fall objects. Knots is used to measure the speed of ship and/or boats.
Explanation:
Quick does the watermelon have more or less mass then the 2kg bottle?
Answer
it will be less\
Explanation:
Suppose that the net external force (push minus friction) exerted on a lawnmower is 51 N. parallel to the ground. The mass of the mower is 24 kg. What is its acceleration?
Answer:
2.125 m/s^2
Explanation:
Use Newton's second law: Force equals mass times acceleration, F = ma. You know the force (51 N) and you know the mass of the mower (24 kg). Remembering that a Newton is the same as kg-m/s2, solve for acceleration:
F = ma
51 kg-m/s2 = 24 kg * a
2.125 m/s2 =a
If a net external force of 51N is extorted on a 24kg lawnmower parallel to the ground, the acceleration of the mower will be 2.125 m/s².
Given the data in the question;
Net External Force; [tex]F = 51N[/tex]
Mass of the Mower; [tex]m = 24kg[/tex]
Acceleration; [tex]a = ?[/tex]
To determine the acceleration of the mower, we make use of the equation from the Newton's Second Law of Motion:
[tex]F = m\ * \ a[/tex]
Where F is the force exerted, m is the mass and a is the acceleration.
But then, we know that; ( A newton is the same thing as [tex]1 kg.m/s^2[/tex] )
Hence, Our Net External Force; [tex]F = 51kg.m/s^2[/tex]
We substitute our values into the equation to find acceleration "a"
[tex]51kg.m/s^2 = 24kg\ *\ a\\\\a = \frac{51kg.m/s^2}{24kg} \\\\a = 2.125 m/s^2[/tex]
Therefore, If a net external force of 51N is extorted on a 24kg lawnmower parallel to the ground, the acceleration of the mower will be 2.125 m/s².
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Explain the energy needed for a liquid to evaporate into gas
24. What does the atomic number tell you about an atom? What does the mass number tell you about
an atom?
HELP ME ASAPP!
Answer:
Atomic number is the number of protons in the nucleus. The mass number of an atom tells you the total number of protons and neutrons in the nucleus.
A bowling bowl rolls 33m with an average speed of 2.5 m/s how many seconds did the ball roll
In the winter, people often buy large bags of rock salt to sprinkle on their walkways. Why do people do this?
Answer:
It helps melt the ice away on their walkway.
Explanation:
The salt makes the ice to freeze at a lower temperature. So when a solute (salt) comes into contact with the ice the freezing point is lowered.
Jim traveled the first 3 hours of his journey at speed of 60 mph and the remaining 5 hours at 24 mph. How long is the whole journey in miles?
Answer:
300 miles
Explanation:
3*60 + 5*24 = 300
Convert 250 pounds to kg
Answer:
250 pound = 113 kg i guess
How does a transistor work?
i need three examples !
Answer:
A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon. ... By turning a small input current into a large output current, the transistor acts like an amplifier. But it also acts like a switch at the same time.
Explanation:
Subduction zones are found at ________ plate boundaries. *
5 points
ocean to continental convergent
Transform
ocean to continental divergent
continental to continental divergent
Answer:
A. Ocean to continental convergent