Explanation:
calculate the applied force in N.
A typical wall outlet in the United States provides a voltage of 120 V to your appliances. What current would be necessary for the electricity to pass through a 8-ohm resistor ? Amps
Answer:15 Amps
Explanation:
CK12 said it was right
A car accelerates uniformly from rest tona speed of 30.0 mi/h in 12.0s. Find the distance the car travels during this time? Find the constant acceleration of the car?
Answer:
2.5 mi/s^2
Explanation:
please see paper for work!
A steam governor uses negative feedback to control the speed of a steam engine. Suppose a steam governor
has two balls that are each rotating with a tangential speed of 3.7 m/s. The balls are 0.10 m from the rotation
axis, and the centripetal force on each ball is 670 N. What is the mass of one of the balls?
Answer:
F = M a Newton's second law
a = v^2 / R = (3.7 m/s)^2 / .10 m = 137 m/s^2
M = F / a = 670 N / 137 m/s^2 = 4.89 kg
Solve and show conversions
Answer:
°c to °F = 176°F
°c to K = 353 K
Explanation:
1, °c to °F = (°c × 9/5) +32
[tex](80 \times \frac{9}{5} ) + 32[/tex]
(16 × 9) + 32 = 144 + 32 = 176°F
2, °c to K = °c + 273
[tex]80 + 273[/tex]
= 353 K
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A 4-kg box is pushed against a flat 1 point
surface with a force of 100 N for 5
meters. The work done on the box is
Answer:
wd = F * D
wd = 100 * 5
wd = 500
The work done on the box is 500 Joules.
What is work?
When an object is moved over a distance by an external force, at least a portion of which is applied in the direction of the displacement, it is said to have done "work" in physics. By multiplying the length of the path by the component of the force acting along the path, work can be calculated if the force is constant.
As work is a scalar quantity, it can be defined only by magnitude, it has no direction. SI unit of work is Joule and CGS unit of work is erg.
Given parameters:
Mass of the box: m = 4 kg.
Force applied on the box: F = 100 N.
Displacement of the box: d = 5 meters.
Hence, the work done on the box is = applied force × displacement
= 100 N × 5 meters
= 500 Joules.
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4. What's metamorphism?
A. The process by which new minerals form as a result of precipitation from an aqueous solution
B. The process by which do minerals form as a result of biological processes in living organisms
C. The process by which two minerals form from existing minerals that become unstable at earth’s surface
D. The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
Answer: Your answer is D. The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
Hope this helps!
The energy that can be extracted from a storage battery is always less than the energy that goes into it while it is being charged. Why?
This is because no battery or energy storage device is 100% efficient, meaning that some of the energy that goes into charging the battery is lost as heat or other forms of energy during the charging process.
This loss of energy is due to several factors, including resistance in the battery's electrical components, chemical reactions that occur within the battery during charging, and other inefficiencies in the charging process.
As a result, when the battery is discharged, it cannot release all the energy that was originally put into it during charging, and some of the energy is lost as heat or other forms of energy. This is known as energy loss or energy dissipation, and it is a common occurrence in all types of energy storage systems.
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Determine the mass of a sphere with a radius of 8 cm having a density of 7500 kg / m3
Answer:
Explanation:
V=2140CM3
M=VOLUME*DENSITY
7500kg/m3=7.5g/cm3
2140cm3*7.5g/cm3=16050
16050g
Which of the vectors in the graph below is the negative of the vector v?
Answer:
D
Explanation:
Answer:
A. D
Explanation:
Captain Picard beams down to a previously unexplored planet. The planet has four times the mass of Earth, and twice the radius. If the force of gravity on the surface of Earth is represented by "g," what is the force of gravity on the surface of the new planet?
A. g
B. 2g
C. 4g
D. 8g
The force of gravity on the surface of the new planet is g
Option A is correct
The force of gravity on the surface of the new planetForce of gravity: the force of gravity speaks to the force that acts on every body that exists under a given space or planet.
The force of gravity acts on masses to create weight.
W=mg
Generally the equation for the Force of gravity is mathematically given as
[tex]g=\frac{Gme}{Re^2}\\\\Therefore\\\\g'=\frac{G*4Me}{2Re^2}\\\\g=4/4\frac{GMe}{Re^2}\\\\[/tex]
g=1g
Therefore, the force of gravity on the surface of the new planet is g
Option A is correct
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____________ of matter = particles (tiny building blocks that make up matter) cannot be created or destroyed Question 2 options: Limited Conservation Closed Explosion
Answer:
Limited Conservation
Explanation:
Atoms
matter is never created or destroyed, it cycles through our world. Atoms that were in a dinosaur millions of years ago—and in a star billions of years before that—may be inside you today. The tiny particles called atoms are the basic building blocks of all matter
nationalgeographic
______ resources will eventually run out, while ________ resources can be generated anew.
A. Limited, abundant
B. Finite, regenerative
C. Nonrenewable, renewable
D. Usable, sustainable
Answer:
C. Nonrenewable, renewable
Hope this helps!
Using data from the diagram below, calculate the ratio of the height to which water at 0°C and mercury are raised or suppressed by capillary action in the same glass tube (use density and
surface tension values of water that are accurate to at least 3 significant figures for your calculation. Include the appropriate sign with your answer.)
water
mercury
Due to stronger cohesive than adhesive forces mercury levels falls in a capillary tube. However, water level rises in a capillary tube due to greater adhesive than cohesive forces.
What is capillary action?Capillary action refers to the rise or fall of a liquid in a narrow tube.
The height to which a liquid is depressed or rises in a narrow tube depends on the strength of the cohesive forces of the molecules of the fluid compared to the adhesive forces between the molecules of the fluid and the walls of the tube.
In water, the adhesive forces between the walls of the tube and water molecules is greater than the cohesive forces between water molecules, hence water rises in a capillary tube.
In mercury the adhesive forces between the walls of the tube and water molecules is less than the cohesive forces between mercury molecules, hence mercury levels falls in a capillary tube.
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7. A golfer hits a golf ball a through a horizontal displacement of 80m. The time of flight for the ball was 1.8
seconds. Keeping it simple, ignoring friction and the ball's rotation, determine the velocity (magnitude and
direction) of the ball as it left the golfer's club.
Answer:
44.4 m/s
Explanation:
d = 80 m, t = 1.8 s, find v
d = v*t
v = d/t = 80/1.8 = 44.4 m/s
Find the weight of a 2 g (=0.002 kg) computer chip. The acceleration due to gravity at the surface of Earth is 9.8 m/s^2.
Answer: 0.0196 Newtons (0.0196N)
Explanation:
Weight is the test mass multiplied by the gravitational field created from the source mass. The source mass is the Earth, and the test mass is the computer chip:
[tex]W=mg[/tex]
[tex]W=(0.002kg)(9.8m/s^2)[/tex]
[tex]W=0.0196N[/tex]
HElp meee
explain how to do this also
Answer:
[tex]\huge\boxed{\sf x = 18\°}[/tex]
Explanation:
If ∠ABC and ∠DEF are complementary angles, this means they add up to 90 degrees.
So,
∠ABC + ∠DEF = 90°
72 + x = 90
Subtract 72 to both sides
x = 90 - 72
x = 18°
[tex]\rule[225]{225}{2}[/tex]
If a capital letter R is seen in an ordinary mirror , what does it look like?
If a capital letter R is seen in an ordinary mirror, it will look like option D. The correct option is D.
What is a mirror?Something that is reversed with respect to a previous instance of the same thing, or with respect to a plane or axis in between. The best illustration of a virtual image is a reflection in a mirror.
Real images are created by intersecting rays, and virtual images are created by diverging rays. A mirror creates a virtual image by reflecting a real image (blue) back to the viewer (red), giving the impression that the items in the image are behind the mirror's surface and facing the other way (purple).
The R in the mirror will look vertically inverse. The types of mirrors are plane mirrors, rotating mirrors, inclined mirrors, and spherical mirrors.
Therefore, the correct option is D.
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5. A 100 N force is applied at an angle of 30 degrees to the horizontal to move a 15 kg object at a constant speed for a horizontal distance of 5 m. Calculate the work done. Your answer Back Next Clear form
Answer:
433 J
Explanation:
F = 100 N, θ = 30°, m = 15 kg, d = 5 m
Work done = F * d * cosθ = 100 * 5 * cos(30) = 433 J
19) Study the chart above. Which statement is TRUE regarding natural and synthetic (manufactured) fibers?
A) Glass is a natural material.
B) Staple fibers do not come from animals.
C) Organic manufactured materials are either synthetic or natural plastics.
D) Synthetic polymers including polyester and nylon, make up a large category of synthetic material.
Answer: The answer is D: Synthetic polymers including polyester and nylon, make up a large category of synthetic material.
Explanation:
The speed in Case A is twice that of Case B. The object mass
in Case A is one-half that of Case B. The radius is the same
in each case. How does the net force in Case A compare to
the net force in Case B?
Answer:
one-half that of Case B.
Explanation:
I am sorry if I get it wrong
Calculate the momentum of a 0.145 kg baseball being thrown at a speed of 40.0 m/s.
Answer:
5.8 kg*m/s
Explanation:
p = mv
momentum = mass times velocity
momentum = 0.145 kg times 40.0 m/s
momentum = 0.145* 40.0
momentum = 5.8 kg*m/s
An unbalanced force of 2 newtons applied to a given mass produces an acceleration. of an unbalanced force of 1 newton is applied to the same mass, the acceleration produced will be
the same
twice as much
one-half as much
four times as much
Explain your answer to the previous question, using full sentences.
i desperately need help!!!
Answer:
Twice as much
Explanation:
D 5-7 Be the only person I know of is the Book with all men and men and people experience the first of the wisdom and
The acceleration produced will be one-half as much.
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. SI unit of acceleration is meter/second² (m/s²).
From Newton's 2nd law of motion; it can be written that:
Force = mass × acceleration
acceleration = force/mass.
Now, according to the question, an unbalanced force of 2 newtons applied to a given mass produces an acceleration.
So, when an unbalanced force of 1 newton is applied to the same mass, the force applied on the object becomes half.
Hence, from the equation, the acceleration produced will be one-half as much.
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What is the highest-frequency sound to which this machine can be adjusted without exceeding the prescribed limit
The highest frequency sound to which the machine can be adjusted is :
4179.33 HzGiven data :
Pressure = 10 Pa
Speed of sound = 344 m/s
Displacement altitude = 10⁻⁶ m
Determine the highest frequency sound ( f )applying the formula below
Pmax = [tex]B(\frac{2\pi f}{v}) A[/tex] --- ( 1 )
Therefore :
f = ( Pmax * V ) / [tex]2\pi \beta A[/tex]
= ( 10 * 344 ) / 2[tex]\pi[/tex] * 1.31 * 10⁵ * 10⁻⁶
= 4179.33 Hz
Hence we can conclude that The highest frequency sound to which the machine can be adjusted is : 4179.33 Hz .
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Attached below is the missing part of the question
A loud factory machine produces sound having a displacement amplitude in air of 1.00 μm, but the frequency of this sound can be adjusted. In order to prevent ear damage to the workers, the maximum pressure amplitude of the sound waves is limited to 10.0 Pa. Under the conditions of this factory, the bulk modulus of air is 1.31×105 Pa. The speed of sound in air is 344 m/s. What is the highest-frequency sound to which this machine can be adjusted without exceeding the prescribed limit?
which statment is correct about the mass of carbon dioxide used during photosynthesis
Answer:
the amount of carbon dioxide used is equal to the amount of oxygen formed.
Explanation:
I hope that helped you didn't put any statements so I couldn't really tell witch one was right-
ACTIVITY 1: IDENTIFY IT RIGHT AWAY! Directions: Identify what is being described in each item.
1. The first name of the sport badminton.
2. A high-drag projectile, with an open conical shape.
3. Racquet sport played using racquets to hit a shuttlecock across a net.
4.The year when the first rules for badminton were established.
5. A rectangular in shape and divided into halves by a net.
The Identification of what is being described in the text above is written below:
The first name of the sport badminton was Poona. A high-drag projectile, with an open conical shape is called shuttlecock.Racquet sport played using racquets to hit a shuttlecock across a net is called badminton.The year when the first rules for badminton was established is 1877.A rectangular in shape and divided into halves by a net. is called the court.What was Poona about?This was known to be the first and original name that was given to badminton. This word was said to have originated from a city that has the same name in India where badminton was said to be a popular sport that was played by the British military officers.
Conclusively, badminton is a very popular sport today and the name and rules used in Poona were first made public in 1873.
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A ball falls from rest from a height of 7.5 m above the ground level. How much time does the ball take to reach the ground?. Consider g = 9.81 m/s².
2.47 s
0.62 s
1.24 s
0.87 s
HELP!!! Think about the soccer ball rolling down the inclined plane from the previous lesson if a student used a 6 kg bowling ball instead of a 05 kg soccer ball the acceleration would_____ and the kinetic energy would____
A spring has a natural length of 28.0 cm. If a 23.0-N force is required to keep it stretched to a length of 36.0 cm, how much work W is required to stretch it from 28.0 cm to 32.0 cm
Answer:
0.23 J
Explanation:
k*(36 - 28) = 23
so k = 23/8 N/cm
W = k(32 - 28)²/2 = 23/8 * 4²/2 = 23 N-cm = 0.23 J
an object of mass 5 kg is raised above the ground calculate work done on the object.
Answer:
work done on the body is the product of the 3 quantities provided
mass in kilogram, macceleration due to gravity in meters per seconds, gdistance or height in meters, hExplanation:
Raising the object, the work done will be the potential energy.
potential energy equals mgh.
Get the remaining quantities and multiply it out g is usually 10m/s
4. In the image, a rubber balloon is being rubbed back and forth against a wool
scarf. Which of the following is true? *
The balloon lost some electrons to the scarf during the charging process.
The balloon lost all of its electrons to the scarf during the charging process.
After rubbing, the balloon has the opposite charge as the scarf.
The scarf would now be repelled by the balloon.
lost some electrons I think