Answer:
C Restoring Force
Explanation:
Given data
Fs=-kx
According to Hokes Law, provided the elasticity of an elastic material is not exceeded the extension xis directly proportion to the applied force F
From the expression, F represent the Restoring Force in Newton
PLZZ HELP ASAP!! WILL GIVE BRAINLIEST AND 20 POINTS
Answer:
Choice C
Explanation:
1. What is the speed of a wave with wavelength 2.5m and frequency 20Hz?
Answer:
50m/s
Explanation:
v = f*w
Answer:
50 ans..
Explanation:
Data :
v = ?
wavelength= 2.5 m
f = 20 Hz
Formula:
speed = (frequency )(wavelength)
Solution:
v = ( 20 )( 2.5 )
v = 50 metre per second Ans ...........
A lever of class 1 has a lotal length of 3m and is
able to lift a load of 60N with a force of 30N at a Time Find
the position of the fulcrum.
Answer:
Fin Lin = Fo Lo Work = Work out where in = input and o = output
Fin / Fo = Lo / Lin = 30 / 60 = 1/2 (input force = 1/2 output force)
Lin + Lo = 3
Lo = 3 - Lin
1/2 = (3 - Lin) / Lin from above
1/2 = 3 / Lin - 1
3 / Lin = 1.5 and Lin = 2
So the input length = 2 m and the output length = 1 m
help me
In fig. A rod appears that has a rotating shaft at its left end. Find at the point of the rod must the force 100N act for it to be in equilibrium?
Answer:
.
Explanation:
,.....................................
HELP MEH I WILL BIVE BRAINLYEST !!
Which aspect of soil characteristics is a soil triangle used for? (10 points)
Group of answer choices
Determining color
Determining types of soils
Separating soils by grain size
Determining soil conservation techniques
Answer:
The correct answer is Separating soils by grain size. Among all the other choices, this is the aspect of soil characteristics in which a soil triangle is used for.
Explanation:
Hoy air always flows up.
true or false?
Answer:
The answer of the question is False
When energy is added to an object, it will vibrate at it's...
A. natural frequency
B. Doppler effect
C. nodes
D. wavelength
Answer:
I think D
Explanation:
if energy is added,it wont stay the same,I beleive D is the only one that makes since,sorry if wrong
4. Uncle Harry weighs 180 pounds. What is his mass in kilograms?
If a plant grows among many tall trees in a dense forest,how could it adapt so that it could get enough air and water
Answer:
The answer is below
Explanation:
Plants that grow among many tall trees in a dense forest could adapt so that they could get enough air and water through the following means:
1. By becoming climbers. Here they climb up the nearby trees to get more air and sunlight.
2. Plants grow leaves that have pointed tips. This allows the passage of water in the plant's leaves without causing damage.
3. Some plants grow as epiphytes, where they grow on big trees' canopy
what is the second low of motion
Answer:
the law of force and accerleration
Explanation:
is the law where the acceleration of an object is directly related to the net force and inversely related to its mass
What is the THR for a male age 48
The sun doesn't set during what season and at what latitude?
Question 15 options:
winter and greater than 66°N
spring and 0°N
summer and greater than 66°N
fall and 23°N
Answer: summer and greater than 66°N
Explanation:
Summer is the most appropriate season in which the sun does not set. It is a typical situation for the Arctic Circle. It is the latitude in which the sun does not set in the day and typically during the month of July. The north of this circle is a period of sunshine which last for a period of about six months in the North Pole. Summer never rises in the winter solstice (December).
How must the height of A relate to the height of B for the skateboarder to have just enough energy to complete the loop?
a) A can be shorter than B
b) A must at least be the same height as B
c) The skateboarder will never complete the loop
d) A must always be taller than B
Answer:
The answer is D
Explanation:
A must always be taller than B for the skateboarder to have just enough energy to complete the loop.
What is centripetal acceleration?Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.
To cancel out gravitational acceleration at point B, the skateboarder should have centripetal acceleration, that is, he should have some amount of kinetic energy.
Hence, from conservation of energy, it may be written that:
Potential energy at point A = (potential energy + kinetic energy) at point B
mgh₁ = mgh₂ + mv²/2
Hence, h₁ > h₂
That is, Height of A > height of B
Hence, A must always be taller than B for the skateboarder to have just enough energy to complete the loop.
Learn more about centripetal acceleration here:
https://brainly.com/question/14465119
#SPJ6
A 1500 kg car is being lifted by a hydraulic jack attached to a flat plate. Underneath the plate is a pipe with radius of 24 cm at the top and 2cm at the bottom. To generate an upward acceleration for the car of 1.0 m/s2, how much force must be applied to the small end of the pipe? The answer is NOT 102 N btw
Answer:
The force that must be exerted at the other end is 102.08 N/m₂
Explanation:
Using Pascal's formula; P₁ = P₂
P₁ = F₁/A₁ = m*g/(πr²)
m = 1500 kg; g = 9.8 m/s², r = 24 cm = 0.24 m
P₁ = (1500 * 9.8)/(22/7 * 0.24 * 0.24)
P₁ = 81235 N/m²
P₂ = F₂/A₂
A₂ = πr² where π = 22/7; r = 2.00 cm = 0.02m
A₂ = 22/7 * 0.02 * 0.02 = 0.00126 m²
P₂ = F₂ / 0.00126 m₂
substituting in the formula P₁ = P₂
81235 N/m² = F₂ / 0.00126 m²
F₂ = 81235 N/m² * 0.00126 m²
F₂ = 102.08 N/m₂
Explanation:
Answer:Why does water stop flowing out of the top hole even before the water level falls ... Calculate pressure on the bottom of the pool due to the water. 3. ... 2. If the ratio of A2 to A1 was 100, what force would be required to lift a 10000 N car? ... A cylinder with a radius of 11 cm and a height of 3.4 cm has a mass of 10.0 kg. a.
Explanation:
What is the net force acting on a 52 kg object that has a velocity of 8.0 m/s and is moving in a circle of radius 1.6 m? a. 4000N b. 20880N c. 2500N d. 3500N
Given values are:
Mass, m = 52 kgVelocity, v = 8.0 m/sRadius, r = 1.6 mAs we know the formula,
→ [tex]\Sigma f = ma[/tex]
or,
→ [tex]\Sigma f = \frac{mv^2}{r}[/tex]
By putting the values, we get
[tex]= \frac{52\times 8^2}{1.6}[/tex]
[tex]= \frac{52\times 64}{1.6}[/tex]
[tex]= 2080 \ N[/tex]
Thus the response above is appropriate.
Learn more about force here:
https://brainly.com/question/14109330
Which is an example of a mixture?
A.) sulfur
B.) table sugar
C.) carbon dioxide
D.) salt water
Answer:
An example of a mixture would be salt water
please help me with this!!
Answer:
C
Explanation:
Action and Reaction forces are equal in the opposite direction.
What makes a ship float
Answer:
Ships can float because a ship is less dense than that of the water that it floats on.
Explanation:
Hope this helps!
Which object has the HIGHEST mass?
A. A gold ring
B. An empty water bottle
C. A pillow
D. A balloon filled with air
determine the density in kg/m3 of a solid whose mass is 40 and whose dimension in centimetre are 30×4×3
Answer:
Density = 11.11 kg/m³
Explanation:
Given the following data;
Mass = 40 kg
Dimensions = 30×4×3 = 360 cm³ to m³ = 360/100 = 3.6 m³
Thus, volume = 3.6 m³
Now, we can find the density;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
[tex]Density = \frac{mass}{volume}[/tex]
Substituting into the equation, we have;
Density = 40/3.6
Density = 11.11 kg/m³
If a wave has a speed of 200 m/s and a frequency of 25Hz, what is the wavelength of the wave?
Answer:
8m
Explanation:
v=f×lamda i.e wavelength
from the question v=200 m/s, f=25Hz, lamda=?
200=25×lamda
lamda=200/25(if you divide both sides by 25)
therefore, lamda=8Hz
Physics- Static Equilibrium Please show work :(
A uniform, horizontal 300 N beam, 5.00 m long, is attached to a wall by a pin connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 53.0° with the horizontal. If a 600 N person stands 1.50 m from the wall, find the tension in the cable and the force exerted on the beam by the wall
Answer:Given A uniform horizontal beam with a length of 8.00 m and a weight of 200 n is attached to a wall by a pin connection ( allows rotation). Its far end is supported by a cable that makes an angle of 53 degrees with the horizontal. If a 600 n person stands on the beam at 2.00 m from the wall , find the tension in the cable
Now the force acting on the beam are the gravitational force of earth and weight attached to a wall is 200 N which acts at centre. Also force of person standing is 600 N and force exerted is r and tension is T , also torque due to r is zero because it acts at the pivot point. So r = 0
Torque due to tension in the rope is sin 53 x 8.00 x T.
Torque due to force is 2.0 m x 600 N
The weight of beam acts in the centre since the beam is uniform.
So we have
sin 53 x 8.00 x T - 2 m x 600 N - 4 x 200 N = 0
8 .00 x 0.8 x T = 1200 + 800
0.64 T = 2000 N-m
T = 2000 / 0.64
T = 312.5 N
Explanation:
The tension in the cable and the force exerted on the beam by the wall will be 312.5 N and 1200N respectively.
What is force?Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The given data in the problem is;
L is the length 5.00 m long,
[tex]\rm \theta[/tex] is the angle of 53.0°
d is the distance = 1.50 m
T is the tension in the cable
F is the force exerted on the beam by the wall= ?
Torque due to tension in the rope is
[tex]\rm \tau = 8.00 \times sin 53^0 \times T[/tex]
Force due to the torque will be;
F= 2.0 m x 600 N
F= 1200 N
The net tension is found as on applying the static equilibirium equation;
sin 53 x 8.00 x T - 2 m x 600 N - 4 x 200 N = 0
8 .00 x 0.8 x T = 1200 + 800
0.64 T = 2000 N-m
T = 2000 / 0.64
T = 312.5 N
Hence the tension in the cable and the force exerted on the beam by the wall will be 312.5 N and 1200N .
To learn more about the force refer to the link;
https://brainly.com/question/26115859
a small table has a mass of 4kg, stands on four legs, each leg having an area of 0.001 m2. what is the pressure exerted by the table on the floor?
Answer:
P = 10 kPa
Explanation:
Given that,
The mass of a small table, m = 4 kg
The area of each leg = 0.001 m²
We need to find the pressure exerted by the table on the floor. Pressure is equal to the force per unit area. So
[tex]P=\dfrac{mg}{4\times A}\\\\P=\dfrac{4\times 10}{4\times 0.001}\\P=10000\ Pa\\\\or\\\\P=10\ kPa[/tex]
So, the required pressure is 10 kPa.
A solid sphere is placed on a frictionless floor in a very long corridor and is given a quick push so that it begins to slide, without rotating, along the corridor. How would the angular speed of the sphere be changing if the floor were not frictionless?
A.) It would remain zero because the net torque is still zero.
B.) It would remain zero because the angular momentum is conserved.
C.) It would be increasing until the slipping between the sphere and the floor stops.
D.) It would be increasing until the linear and the angular speeds become equal.
E.) It would be increasing until the translational motion stops.
The angular speed of the sphere be changing if the floor were not frictionless, it would be increasing until the slipping between the sphere and the floor stops. Hence, option C is correct.
What is Friction?Friction refers to the resistance to a thing moving or rolling over another solid object. Although friction force can be beneficial, for instance the traction required to move without slipping, they also provide a significant degree of resistance to motion.
In order to overcome frictional forces in the working components, about 20% of an automobile's engine power is used.
The attractive forces, also known as stickiness, between the contact zones of the surfaces, that are always microscopically uneven, seem to be the main contributor to friction between alloys. These "welded" joints are shredded, and friction is created by the imperfections of the rough surface scuffing up against the softer surface.
To know more about Friction:
https://brainly.com/question/28356847
#SPJ2
Which digital text feature plays music or speaking on its own?
a
Animation
b
Interactive elements
c
Sound
d
Text
Answer: a
Explanation:
Answer:
C
Explanation:
"speaking on it's own " Those key word told me sound ,text and animation would not be correct
if it takes you 20 joules of work to move a couch 10 meters in 10 seconds, what is the power?
Answer:
Power = 2 j/s
Explanation:
Power = Work / Time
= 20/10
= 2 j/s
If two alpha particles (each with two protons and two neutrons) are 0.500 m apart, what is the electric potential energy of the system?
Answer:
U = 1.84 10⁻²⁷ J
Explanation:
Electric potential energy is
U = k q₁q₂/ r
in this case the electric charge is
q = 2 p
q = 2 1.6 10⁻¹⁹
q = 3.2 10⁻¹⁹ C
indicate the distance between the charges is 0.500 m
we calculate
U = 9 10⁹ 3.2 10⁻¹⁹ 3.2 10⁻¹⁹ /0.500
U = 1.84 10⁻²⁷ J
A renewable resource can be replaced in a relatively short amount of time. Question 4 options: True False
[tex] \\ [/tex]
TRUERenewable resources are natural resources that can be replaced in a relatively short period of time or are virtually limitless in supply. Renewable energy resources include wind, sunlight, moving water, biomass, and geothermal energy.
[tex] \\ [/tex]
Hope It Helps!
Answer:
true
Explanation:
5. What is meant by the term "satellite motion"?
b. How can an object achieve satellite motion? Be as specific as possible! (1)
Convert 35 centimeters to inches
Answer:
13.7795276 Inches
Explanation: