Answer:
Robotic arms used aboard the ISS are now used in delicate surgeries on Earth.
Explanation:
The ISS allows users to address hardware product development gaps, advanced manufacturing, and emerging technology proliferation. Microgravity-enabled material production capabilities and advanced manufacturing facilities are demonstrating scientific and commercial merit for Earth benefit
Answer:
a
Explanation:
A Physics question regarding circuits and electricity.
Answer:
The other bulbs would stay lit.
Explanation:
You're just unscrewing one bulb, not turning off the circuit.
What is used in the name of ionic compounds containing a cation with multiple charges to indicate which charge?
(No answers to display)
Answer:
Roman Numerals?
Explanation:
Iron(II), would be iron 2+
iron(III), would be iron 3+
for example.
The scientific theories to the law of parsimony?
Answer:
vfx local KFC kid lsd Ltd Ltd KFC
Match each type ol energy with its description
chemical
electrical
sound
nuclear
mechanical
A type of potential energy stored inside atoms
Boccurs when a vibrating object's kinetic energy moves through matter in waves
C possessed by substances that do work through chemical reactions
D kinetle energy of charged particles called electrons
energy of moving objects
Answer:
B
Explanation: yes
Aray diagram is shown.
What does the letter red line represent?
Answer:
Red line is reflected ray.
Explanation:
According to the given figure, the blue line represent the incident ray. It strikes the surface and reflection occurs. The dotted line shows normal.
After reflecting the surface, the ray of light is reflected. Red line shows the reflected light.
In this case, the laws of reflection follows i.e. the angle of incidence is equal to the angle of reflection.
A force of 310.0 N is used to push a 120 kg mass, 30.0 m horizontally in 3.00 s.
(a) Calculate the work done on the mass.
[ ] × kJ
(b) Calculate the power developed.
[ ] kW
Explanation:
We have,
Force acting on the mass is 310 N
Mass, m = 120 kg
Distance covered by the mass is 30 m
Time, t = 3 s
To find,
(a) Work done (b) power developed
Solution,
(a) The work done on the mass is given by the product of force and displacement such that,
[tex]W=Fd\\\\W=310\times 30\\\\W=9300\ J[/tex]
(b) The rate at which the work is done is called power developed. Its formula is given by :
[tex]P=\dfrac{W}{t}\\\\P=\dfrac{9300}{3}\\\\P=3100\ W[/tex]
Therefore, the work done on the mass is 9300 J and the power developed is 3100 W.
The diagram shows the field lines near the poles, X and Y, of two magnets.
At left a rectangular box with the long horizontal side labeled X. At right a rectangular box with the long horizontal side labeled Y. There is a gap between the boxes. Curved lines with arrowheads emerge from the right end of X and the left end of Y and point up and down.
Based on the field lines, what are the poles of the magnets?
X: north
Y: south
X: south
Y: north
X: north
Y: north
X: south
Y: south
Answer: I think it is C
Explanation: sorry if it wrong
Answer:
C
Explanation:
got it right on edge
A pendulum reaches a height of 0.3 m at the top of its swing. If the
bob has a mass of 5 kg, what is the potential energy at the top of its
swing?
Select one:
14.7)
7.35 J
0.45 J
1.5 J
Answer: A
Potential energy = 14.7 J
Explanation:
Given that the
Mass M = 5 kg
Height h = 0.3 m
Let us take acceleration due to gravity g = 9.81 m/s^2
Potential energy = mgh
Substitute all the parameters into the formula above
P.E = 5 × 9.81 × 0.3
P.E = 14.715 J
P.E = 14.7 J approximately
The correct option is therefore A
Can someone answer this for me pls?
Answer:
near the 11'th mark I believe. I can't be sure until I see the options It'll be close to the 2n weight.
Explanation:
hope this helps I Can't answer so I don't want a thanks.
What effect does force have on the motion of an object?
Answer:
When a force acts on an object that is stationary or not moving, the force will cause the object to move, provided there are no other forces preventing that movement. If you throw a ball, you are pushing on it to start its movement. If you drop an object, the force of gravity causes it to move.
hope this helps :)
After nuclear explosions animals and humans can continue to die due to ingestion of radioactive particles and nuclear ______________.
fallout
rainout
whiteout
50W of power is generated using 100J of work to move a box onto a shelf. How long did it take to move the box from the floor to the shelf?
Answer: time t = 2 seconds
Explanation:
Given that
Power P = 50W
Energy E = 100J
How long did it take to move the box from the floor to the shelf ? This implies time taken.
Power is defined as the rate at which work is done. I.e
P = W.D/t
Where work done = energy
50 = 100/t
Make t the subject of formula
t = 100/50
t = 2 second
This question is about waves. I need help,thanks. I need full sentences.
How much voltage must be applied across a 0.20 Ω wire in order to create a 30 A current? (Please show work for it too)
Answer:
6 V
Explanation:
By ohm's law :
V = IR
V = 0.2 × 30 = 6 V
Answer:
V=6V
Explanation:
Use the equation I=V/R and solve for V then use V=IR plug in the numbers.
V=IR
V=30(0.2)
V=6V
what was a luxury but is now considered a necessity.
Answer:
a cellphone
Explanation:
pls mark brainliest
Answer:
A car
Explanation:
this is about Electrostatics
Answer:
Force, [tex]F=2.88\times 10^{-3}\ N[/tex]
Explanation:
Charge 1, [tex]q_1=1\times 10^{-7}\ C[/tex]
Charge 2, [tex]q_2=-2\times 10^{-7}\ C[/tex]
Distance between charges, d = 0.25 m
It is required to find the force between charges. The charges are opposite the force between them is attractive. The force between charges is given by :
[tex]F=\dfrac{kq_1q_2}{d^2}\\\\F=\dfrac{9\times 10^9\times 1\times 10^{-7}\times 2\times 10^{-7}}{(0.25)^2}\\\\F=2.88\times 10^{-3}\ N[/tex]
So, the force between charges is [tex]2.88\times 10^{-3}\ N[/tex].
25 POINTS !!!! PLS HELP
Answer:
G
Explanation
The acceleration of gravity is constant, and = 9.8 m/s² , no matter what mass of the object is. Initial speed for both objects = 0 m/s. So, after 2 sec the objects will have the same speed and the same distance.
Answer G: speed=v, distance =d.
Identify the following equation: H2 - 2H+ + 2e
A. oxidation
B. reduction
C. redox
D. none of the above
Answer:
(A.) H2 --> 2H+ 2 e- (oxidation)
Explanation:
A. oxidation is the removal of electron(s) from a substance. This is the case here, since AFTER the reaction you can see that there were electons "removed" from H2.
H2 --> 2H+ 2 e- (oxidation)
B. reduction is the addition of electron(s) to a substance
1/2 O2 + 2 e- + 2H+ --> H2O (reduction)
By the way:
Biochemical reactions often involve the transfer of complete hydrogen atoms, meaning an electron and a proton.
The substance oxidized (H2) is electron donor.
The substance reduced (O2) is electron acceptor.
Just remember this:
Prior to the reaction, the e donor is always reduced.
Prior to the reaction, the e acceptor is always oxidized.
What is the kinetic energy of a bicylcle with a mass of 15 kg traveling at a velocity of 3 m/s?
KE = 0.5 x mv^2
Kinetic energy equals 1/2 times mass times velocity squared.
Mass = 15kg
Velocity = 3m/s
Plug it into the formula.
KE = 0.5 x 15(3^2)
KE = 0.5 x 15(9)
Multiply the mass and velocity squared.
KE = 0.5 x 135
Then, multiply the result by 1/2 or 0.5
KE = 67.5
The kinetic energy of a bicycle that has a mass of 15kg and travels at 3m/s is 67.5J.
Answer:
67.5 J
Explanation:
Kinetic energy can be found using the following formula.
[tex]KE=\frac{1}{2}mv^2[/tex]
where m is the mass in kilograms and v is the velocity in m/s.
We know the bike has a mass of 15 kilograms. We also know the velocity is 3 m/s. Therefore, we can substitute 15 for m and 3 for v
[tex]KE=\frac{1}{2}*15*3^2[/tex]
Evaluate the exponent first. 3^2 is the same as 3*3, which is equal to 9.
[tex]KE=\frac{1}{2} *15*9[/tex]
Multiply 15 and 9.
[tex]KE=\frac{1}{2} *135[/tex]
Multiply 1/2 and 135
[tex]KE=67.5[/tex]
Add appropriate units. Kinetic energy uses Joules or J as the units.
[tex]KE= 67.5 Joules[/tex]
The kinetic energy of the bike is 67.5 Joules
What is the potential difference if a resistance of 20 ohms produces a current of 10 amperes?
Answer:
200 Volts
Explanation:
V= IR
V = 20 Ohm * 10 A = 200Volt
Potential difference V is 200 volt
Given that;Resistance R = 20 ohms
Current I = 10 Amp.
Find:Potential difference V
Computation:Potential difference V = IR
Potential difference V = 20(10)
Potential difference V = 200 volt
Learn more:https://brainly.com/question/21808222?referrer=searchResults
why is it dangerous to connect a battery to itself. what is the term used to describe that
Why are force fields used to describe magnetic force? A. Magnetic force acts between two objects that are not touching. B. Magnetic force is a form of gravity. C. Magnetic force acts between any two objects with mass. D. Magnetic force can only attract objects.tic force?
Answer:A
Magnetic force acts between two objects that are not touching
Explanation:other choices are not specific enough (method of elimination)
The electromagnetic force, one of the four fundamental forces in nature, produces the magnetic force, which is caused by the movement of charges. Thus, option A is correct.
What force fields used to describe magnetic force?Compass needles, motors, refrigerator magnets, railroad tracks, and modern roller coasters all use magnetic force.All moving charges produce a magnetic field, which exerts a force on any charges that cross its boundaries.
Moving electric charges generate magnetic fields. Everything is constructed of atoms, and each atom has an orbiting nucleus that is composed of protons and neutrons.Due to the circling electrons' small size and motion, each atom is surrounded by a mild magnetic field.
Therefore, When two charge-containing objects move in the same direction, a magnetic attraction pulls them together.
Learn more about magnetic force here:
https://brainly.com/question/3160109
#SPJ2
2. The length of time you take to execute an
action is called your *blank*
time.
(a) total stopping (c) braking
(b) perception
(d) reaction
Answer:
Reaction
Explanation:
The products of photosynthesis _____.
are the same as the products of cellular respiration
provide the energy needed to start cellular respiration
provide the reactants needed to start cellular respiration
provide the reactants needed to start cellular respiration
Explanation:
The thing you should know is that photosynthesis is exactly opposite from cellular respiration.
the products of photosynthesis are the oxygen and the organics.
And the oxygen and the organics are also the reactants of the cellular respiration.
Answer:Water
Explanation:
Read more from the chapter
I need an answer ASAP .....
Why Is total internal reflection important in the use of fiber optics?
Answer:
Hope this helped :
Explanation:
When light passes from a medium with one index of refraction (m1) to another medium with a lower index of refraction (m2), it bends or refracts away from an imaginary line perpendicular to the surface (normal line). As the angle of the beam through m1 becomes greater with respect to the normal line, the refracted light through m2 bends further away from the line.
At one particular angle (critical angle), the refracted light will not go into m2, but instead will travel along the surface between the two media (sine [critical angle] = n2/n1 where n1 and n2 are the indices of refraction [n1 is greater than n2]). If the beam through m1 is greater than the critical angle, then the refracted beam will be reflected entirely back into m1 (total internal reflection), even though m2 may be transparent!
Alex has to pick up a 20 N stack of documents and raise them 5 meters from the floor.
A. How much work does Alex do on the stack of documents as he lifts it?
B. While Alex is holding the documents, what type of energy do they have relative to the floor?
C. Alex gets tired and drops the documents to the floor. As the stack falls, what type of energy does it possess?
Answer:
1.Work done=100 joules
2.potential energy
3.kinetic energy
Explanation:
W=Force x distance
w= 20 N x 5 M
W = 100 JOULES
Read the ruler in centimeters to the correct degree of precision.
12.0
12.05
12.10
12.13
Answer:
Option B
Explanation:
One centimeter is equal to10 mm. The reading on the scale lies with in the mark of 12 and its adjacent division.
This length between two sub units is equal to 1 mm. Since the scale shows falls somewhere between 1 mm unit of length, it can be taken as half of it i.e 0.05 mm.
Hence the total length would be 12.05 mm
Option B is correct
12.05 mm
I hope this helps you
ASAP pls answer Right please I have soooo much work they overwork me
The thylacine is an extinct marsupial that once roamed Tasmania and Australia. There are several preserved specimens in existence. Which of the following DNA technologies offers the best chance for bringing back the thylacine?
A) DNA cloning
B) DNA sequencing
C) Gel electrophoresis
D) Selective breeding programs.
Answer:
D
Explanation:
selective breeding programs
What are all the elements of a perfect graph?
Answer:
It states that a graph is perfect if the sizes of the largest clique, and the largest independent set, when multiplied together, equal or exceed the number of vertices of the graph, and the same is true for any induced subgraph
