Answer:
2
Explanation:
because uWU
Answer:no answer
Explanation:
Cause ur weird
Tides occur in Ocean but not in Lake give reason
Answer:
Lakes don't cover enough area so that their water can't be moved significantly by gravity
A 23cm hammer is used to pull a nail. If 42.5 N of force is applied to it at a 45° angle, how much torque is applied?
Answer:6.91 Nm
Explanation:
Longitudinal waves
Transverse waves
Answer:
In a transverse wave, the particles are displayed perpendicular to the direction the wave travels . in a longitudinal wave the particles are are displayed parallel to the direction the wave travels. an example of longitudinal waves in compressions moving along a slinky.
Suppose the coefficient of static friction is 0.55 rather than 0.61. is the weight of the pail and sand necessary to start the pumpkin moving in this case greater than, less than or equal to 11 N? calculate the required weight.
The weight of the pail and sand necessary to start the pumpkin moving in this case is less than 11 N.
What is the force of friction acting the pumpkin?The force of friction acting on the pumpkin depends on the weight of the pumpkin and the coefficient of static friction.
F = μW
where;
μ is the coefficient of static frictionW is the weight of the pumpkinThe weight of the pumpkin is calculated as follows;
W = mg
where;
m is the mass of the pumpkin = 1.8 kgg is acceleration due to gravityW = 1.8 kg x 9.8 m/s²
W = 17.64 N
The static friction force preventing the pumpkin from moving is calculated as follows;
F = μW
F = 0.55 x 17.64 N
F = 9.7 N
Thus, the minimum force required to move the pumpkin is 9.7 N which is less than 11 N.
Learn more about static friction force here: https://brainly.com/question/13680415
#SPJ1
The complete question is blow:
Suppose the coefficient of static friction is 0.55 rather than 0.61. is the weight of the pail and sand necessary to start the pumpkin moving in this case greater than, less than or equal to 11 N? calculate the required weight. mass of the pumpkin is 1.8 kg.
1. A Zambeef delivery track travels 18 km north, 10 km east, and 16 km south. What is its final displacement from the origin?
Answer:
10.2 km
Explanation:
Displacement is the shortest distance from your original position after movement.
Now, the Zambeef delivery truck moves 18 km north and then 10 km east and then 16 km south.
This means that vertically the truck is 2km short of the 18 km he travelled north..
So we can find the displacement using pythagoras theorem..
Let d be the distance from the current position to the initial position.
Thus;
d² = 2² + 10²
d² = 4 + 100
d = √104
d ≈ 10.2 km
I have attached a diagram showing the direction of this displacement
PLEASE HELP ASAP!!!
You and your 3 friends are driving down the road. All the wheels go flat at the exact
same time, that's not good. You have to use a 2,100 N force to push the car 4 meters to the side of the road. How much work did you do on the car?
A. 525 J
B. 2,104 J
С. 8,400 J
D. zero work since the car broke down
Answer:
D. Zero
Explanation:
A machine can only do work if it is operational
https://photos.app.goo.gl/wAXjG9NxWP2Wb55YA
Gravitational potential energy is
O the energy that an object has when it is at a
certain elevation, h
the energy of an object at rest
O the energy that an object has because it is in
motion
The cnone of the above
How are particles behaving in solid vs gas when it comes to sound?
Answer:
Sound waves have to travel through solids, gases, and liquids. Sound waves vibrate through the air in matter. Molecules in solids are packed tightly. This allows sound to travel faster through a solid than gas.
At which location does a skateboarder have the most kinetic energy at least potential energy?
Answer:The skater has the lowest amount of kinetic energy at the top of the track and lowest potential energy at the lowest point of the track. Kinetic energy is the speed a object is going, and potential energy is the energy a object has when its not moving. While the skater moves up the ramp the potential energy increases, and the kinetic energy decreases because it slows down while moving up the ramp. Hope this helps have a nice day ❤️
Explanation:
First recognize that the total energy of the skater is conserved: this means that the total energy of the skater is constant. The total energy (E) consists of the kinetic energy (KE) and gravitational potential energy (Ug).
E=KE+Ug
Now we know that the gravitational potential energy depends on the distance from the zero of potential (or in simpler terms: how high the skater is from the ground). Now, we are ready to answer the question.
The skater possesses the most KE at point B: remember total energy is a constant and at point B the skater has the least amount of potential energy (since they are at their lowest point above the ground). This means that the skater must have more kinetic energy at point B.
Similarly, at points A and C, the skater possesses the most potential energy since they are at their highest point above the ground.
As the skateboarder moves then it will have the maximum kinetic energy at the lower most portion of the track and will have the zero potential energy at the same point and at the maximum height of the track the skater will have maximum potential energy and zero kinetic energy.
What will be the KE and PE of the skater at maximum and minimum positions of the track?As the skater moves on the track his kinetic and potential energy converts into each other but the total energy remains constant.
Total Energy = KE+PE
At maximum height the kinetic energy will totally convert into the potential energy and becomes zero.and the potential energy becomes maximum at this point.
At Max height (Total energy=Max Potential energy) KE=0
Similarly at the lower most portion of the track the Potential energy completely convert into the kinetic energy and becomes zero. And kinetic energy becomes max at this point.
At lower point (Total energy= Max Kinetic Energy) PE=0
Thus the skater will have the most kinetic energy at the lower most point of the track and least potential energy at the same point.
To know more about energy follow
https://brainly.com/question/1634438
A body of mass 11 kg is subjected to a net force of 20 N East for 30 s. Calculate the change in
velocity of the body.
Answer:
54.55 m/s
Explanation:
From the question above,
Change in velocity = impulse/mass
Δv = I/m = Ft/m................... Equation 1
Where F = force, t = time, m = mass
Given: F = 20 N, t = 30 s, m = 11 kg
Substitute these values into equation 1
Δv = (20×30)/11
Δv = 600/11
Δv = 54.55 m/s
Hence the change in velocity of the body is 54.55 m/s
The change in velocity of the body is 54.54 m/s
The velocity of the body of an object is the change of the distance of the object with time.
From the information given:
the mass of the b0dy = 11 kg
the net force F = 20 N
the time (t) = 20 s
Similarly;
Force = ma
20 = 11 × (a)
[tex]\mathbf{a = \dfrac{20}{11} \ m/s^2}[/tex]
a = 1.818 m/s²
However, the acceleration of an object is the change in velocity with time.
[tex]\mathbf{a = \dfrac{\Delta V}{t}}[/tex]
ΔV = (a) × (t)
ΔV = 1.818 m/s² × 30 s
ΔV = 54.54 m/s
Learn more about the velocity of an object here:
https://brainly.com/question/626479
While hammering a nail, you put in 30 Joules of work. The hammer then puts out 10 J of
work on the nail. What is that hammer's efficiency?
A. 300%
B. 40%
С. 33%
D. 33 J
Answer:
C Don't worry if you thought it was D. I almost answered that.
Explanation:
Remark
You can get this just by learning the vocabulary.
Efficiency = Work Out / Work In * 100%
Work in = 30J That's you swinging the hammer.
Work out = 10 J That's how much of the hammer's work gets to the nail.
Efficiency = (10/30)*100
Efficiency = 1/3 * 100
Efficiency = 33%
Answer:
I think its 40%, pls correct me if I am wrong :(
Explanation:
Weight is the amount of matter in an object.
True or False
Answer:
False
Explanation:
The mass of an object is normally known as the weight of the object. but mass is the amount of matter in the object. Weight is the force exerted on an object by gravity
Answer: False
Explanation: mass is the amount of matter in an object
an
N
What is the sum & in Unit
Vector of the 2
& Vectors
a=4. oi + 3.0j and
vector b=- 13.oi +7.0j What are thee
magnitude and direction of a+bالا
Explanation:
Given that,
Vector a = 4i+3j
Vector b = -13i+7j
We need to find the magnitude and direction of (a+b). So,
(a+b) = (4i+3j) + (-13i+7j)
= (4i-13i)+(3j+7j)
= -9i+10j
Magnitude of (a+b).
[tex]|a+b|=\sqrt{(-9)^2+10^2} \\\\=13.45[/tex]
Direction of (a+b),
[tex]\tan\theta=\dfrac{10}{-9}\\\\\theta=\tan^{-1}(\dfrac{-10}{9})\\\\\theta=-48.01^{\circ}[/tex]
Hence, this is the required solution.
Convert 365 years to days. Using one step conversion. :) Please help w this
Answer:
133225
Explanation:
Newtons 1st law
What is the resistance to this unbalanced force in football?
Answer:
Newton's first law of motion states that an object's motion will not change unless an unbalanced force acts on the object. ... The football player in the photo above is in motion. He will stay in motion unless players on the other team exert an unbalanced force against him.
Explanation:
https://flexbooks.ck12.org/cbook/ck-12-middle-school-physical-science-flexbook-2.0/section/1.4/related/rwa/football-physics/
LINK
which of the following terms refer to the area immediately around the crime?
A crime scene
B bird's-eye view
C extent
D core area
Answer:
A....It is a crime sene
Explanation:
Convert 140.8 centimeters to inches.
Using one step conversions.
Answer:
140.8/2.54=55.43 inches
which of the following is an example of noncontact force?
A. Pitcher throws the ball
B. the bat hits the ball
C. the ball falls from the sky
D. the runner gets tagged out
1. A car travels along a straight road to the east for 100 meters in 4 seconds, then go the west for 50 meters in 1 second.
find the
a. Distance
b. Displacement
c. Time elapsed
Answer:
a.Distance = 150 m
b. Displacement = 50 m
Time lapsed = 5 seconds
Explanation:
a. Distance is the change in the position of an object.
The distance covered by the car = 100 + 50
= 150 m
b. Since displacement is a vector quantity,
Displacement of the car = 100 - 50
= 50 m due east
c. Time elapsed is the time taken for the motion of the car starting from when its starts to when it stops.
Thus, the time elapsed = 4 + 1
= 5 seconds
Two metal balls are dropped from the top of a two-story building at the same time. One ball is twice as heavy as the other ball. Which statements about their motion are true? Assume that air resistance isn’t a factor.
Answer:
that will be tureHéroes y bandidos: iconos populares y figuraciones de la nación ... más o menos convencional de un Superman o, mejor, un Batman: un ... —o, a veces, mediante su imposibilidad— se obliga al lector a ... creerse que un hombre de aspecto tan común fuera el poderoso ... vas a sentir la furia de un león.
HELP PLZ I will give you 10 points
An electric field of 3 × 1016 Newtons over Coulombs. is needed to create a spark in the air. If the charged particles in the field are separated by a distance of 1 mm, how many coulombs of charge are needed for a spark? (Round to the nearest whole number.)
Answer:
3
Explanation:
edge 2021
Answer:
3 is correct
Explanation:
How do first impressions help us form schemas?
Answer:
i dont know im so sorry for making you feel like you
Explanation:
i dont know im so sorry for making you feel like you
The strength of an electromagnet CANNOT be increased by?
Answer:
reversing the current
Explanation:
What are three common fossil fuels?
A. coal, oil, natural gas
B. iron, lead, carbon
C. coal, gold, silver
D. solar, wind, water
Answer:
A. coal, oil, natural gas
Explanation:
this is because those three are related to fossil fuels.
Answer:
A:Coal,Oil,Natural gas
Explanation:
that pfp tho
An airplane traveled for 15 hours at a velocity of 1100 km/hr. What distance
did the airplane travel. *
Your answer
Answer:
i have no clue
Explanation:
A pendulum is swinging. It swings 85 complete swings and this takes 102 seconfs. What is the frequency? A. 0.83 Hz B.17Hz C.187 Hz D.1.2 Hz
Answer:
A: 0.83 Hz
Explanation:
Frequency can be calculated in a multitude of ways. The one way that is going to help you solve this problem is (# of times/seconds)
so you would divide 85 swings/102 seconds
= 5/6 or 0.8333 Hz
so your answer is A
magnetic induction cannot be done in a wood why
Answer:
Magnetic induction cannot be done in a wood because it is not a magnetic person like iron , nickel,and cobalt
3. A school bus traveling at 22 m/s has a momentum of 150,000 kgm/s. What is the mass of the
bus? *
Answer:
Mass of bus = 6,818.18 kg (Approx.)
Explanation:
Given:
Velocity = 22 m/s
Momentum = 150,000 kg-m/s
Find:
Mass of bus
Computation:
Mass = Momentum / Velocity
Mass of bus = 150,000 / 22
Mass of bus = 6,818.18 kg (Approx.)
When conducting research,
are unintentional factors that creep into your experiment and have the potential to affect or even spoil your results.
a. confounding variables
b. replication digits
c. extrapolating factors
d. independent variables
Answer:
a. confounding variables.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
In an experiment , the variable being manipulated by an experimenter is known as an independent variable while the dependent variable is the event expected to change when the independent variable is manipulated.
A confounding variable can be defined as a variable that generally influences both the independent and dependent variable in an experiment or research study. Thus, it creates an association between the two variables in an experiment.
Hence, when conducting research, confounding variables are unintentional factors that creep into your experiment and have the potential to affect or even spoil your results.