Answer:
When you moved the compass near a bar magnet, the needle pointed toward the magnet's magnetic field and not toward the north.
Explanation:
What is a joule?
1 foot/lb
1 meter per second squared
1 meter
1 N-m
Answer:
Input Output
1 ft-lb 12 in-lb
1 in-lb 0.113 Nm
1 Nm 0.7376 ft-lb
1 in-lb 0.0833 ft-lb
1 ft-lb 1.3558179 Nm
1 in-lb 15.999999461875 in-oz
1 Nm 8.850746106833 in-lb
1 l-atm 101.325 J
1 Nm 3.72506E-7 hph
1 J 1 Nm
Explanation:
please mark as briliant
Answer:
1N-m
Explanation:
teacher just taught this an hour ago for my class
Write a summary paragraph discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.
According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)
Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task.
In this experiment, you will determine the IMA, AMA, and efficiency.
The materials for this experiment are:
a smooth board
smooth block or other object to drag up a plane
a spring scale (calibrated in newtons)
string
books or blocks to support the inclined plane
and a meter stick.
Your job is to observe the experiment and collect your own data from this demonstration.
Be ready to record your observations and data.
You will be pulling an object up an inclined plane at different inclines.
Make and record a hypothesis about how changine the slope of inclined plane will affect the efficiency.
Measure the height and length of the plane, record the measurements.
Measure the mass of the object, and record. Convert the mass from grams to newtons by dividing by 102, and record.
Now slowly and steadily pull the object up the incline with the spring scale and string kept parallel to the incline.
Record the readout on the scale.
This will be the effort force.
Now increase the slope of the incline by increasing the height.
Measure the height of the new incline.
The length of the incline remains constant.
Slowly and steadily pull the object up the incline, record the readout from the scale.
You are now ready to complete the rest of this assignment.
Answer:
LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right bcs i got it lol, yw btw! hahaha! good luck also, subscribe to my channel!
Explanation:
The radius of the aorta is about 1 cm and the blood flowing through it has a speed of about 30 !" ! . Calculate the average speed of the blood in the capillaries given the total cross section of all the capillaries is about 2000 !"!
Answer:
The average speed of the blood in the capillaries is 0.047 cm/s.
Note: The question is incomplete. The complete question is as follows:
The radius of the aorta is about 1 cm and the blood flowing through it has a speed of about 30 cm/s. Calculate the average speed of the blood in the capillaries given the total cross section of all the capillaries is about 2000 cm².
Explanation:
From the given values:
radius of the aorta, r₁ = 1 cm
speed of blood, v₁ = 30 cm/s
Area of the aorta, A₁ = πr₁² where π = 3.142
Area of aorta = 3.142 × (1)² = 3.142 cm²
Area of the capillaries, A₂ = 2000 cm²
let the average speed of the blood in the capillaries = v₂
From the continuity equation of fluid flow, the product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is always constant. In formula, A₁v₁ = A₂v₂
Using the continuity equation, the average the average speed of the blood in the capillaries can be calculated thus:
A₁v₁ = A₂v₂
v₂ = (A₁v₁) / (A₂)
v₂ = (3.142 x 30) / (2000)
v₂ = 0.047 cm/s
Therefore, the average speed of the blood in the capillaries is 0.047 cm/s.
Calculate equivalent resistance in the following between points P and Q
[tex] \sf{(i) \: We \: are \: given \: a \: figure \: of \: Series \: Circuit. }[/tex]
[tex] \sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3Ω[/tex]
[tex] \sf• \: R_{3} =3Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Series \: Circuit, }[/tex]
[tex] \bf \purple {\bigstar {\: R_{s} = R _{1} + R _{2} + R_{3}+...+ R_{n}}}[/tex][tex] \sf ⇒ R_{s} =(3 + 3 + 3)Ω[/tex]
[tex] \sf \therefore R_{s} =9Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 9 Ω.}}[/tex]
[tex] \\ \\ [/tex]
[tex] \sf{(ii) \: We \: are \: given \: a \: figure \: of \: Parallel \: Circuit. }[/tex]
[tex]\sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3 Ω[/tex]
[tex] \sf• \: R_{3} =3 Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Parallel \: Circuit, }[/tex]
[tex] \bf \purple {\bigstar {\: \frac{1}{R_{p}} = \frac{1}{R _{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}+...+\frac{1}{R_{n}} }}[/tex][tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1}{3} + \frac{1}{3} + \frac{1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1 + 1 + 1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{3}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = 1[/tex]
[tex] \sf \therefore R_{p} = 1Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 1 Ω.}}[/tex]
i have answered . check that. ok? what is ur name? can u tell me?
It is a hot summer day at the beach. From your understanding of specific heat capacity, what can you expect to be the difference between the sand and the water?
The water will gain more thermal energy than the sand
The water will heat up faster then the sand
The sand will heat up faster than the water
The sand will lose its energy more slowly than the water
Answer:
the sand will heat up faster than the water
Explanation:
water has slow heat conduction
and sand had high heat conduction
A 2-cm tall object is located 10 cm in front of a concave lens that has a focal length of -20 cm. Calculate the image distance and the image size. (Describe the image) *
Answer:
image distance =-6.6 7cm
image size=1.3cm
Explanation:
Help me my brain cant comprehend this
Answer:
delta(️) means
Explanation:
plz mark me as brainlist
Answer:
The 'change of'.
Explanation:
So basically think delta as a prefix for a word and delta means change of. So if we are looking for delta (v), then that means we are looking for the change of the velocity. Another example is that if we are looking for delta (t), then that means we are looking for the change of the Time. You can find the change of pretty much anything and everything by using the formula ( final x - initial x ) and x equals whatever value you are trying to final the delta of. Hope this makes sense, and if you want a more detailed answer lmk.
A 25.0 kg object is held 8.50 m above the ground. Calculate its PE
Answer:=mgh
Explanation:
Suppose you increase your walking speed from 1 m/s to 3 m/s in a period of 2 s. What is your acceleration?
Answer:
1 m/s²
Explanation:
a = (Vf - Vi)/t
a = (3-1)/(2)
a = 2/2
a = 1 m/s²
I might be wrong ¯\_(ツ)_/¯
what is electron affinity?
Answer:
The electron affinity of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion.
any 4 differences between latitudes and longitudes..
Answer:
latitude implies the geographic coordinates that determine the distance of a point, north- South of the equator. longitude alludes to the geographic coordinates, which indentifies the distance of a point, east-west of the prime meridian.
P2O5 is a covalent compound used to purify sugar. How many atoms of phosphorus does this compound have? How many atoms of oxygen does this compound have?
Answer:
2 atomic of phosphorus and 5 of oxygen
Explanation:
The numbers attached to the elements (ie. subscript) show the amount of atoms present for each element.
A ball bounced by a basketball player on the floor bounces back up at her. Newton's First Law Newton's Second Law Newton's Third Law
Answer:
Newton's Third Law of Motion
Explanation:
Newton's Third Law of Motion which states that, for every action there is an equal but opposite reaction.
This ultimately implies that, in every interaction, there is a pair of forces acting on the two interacting objects.
In this scenario, a ball bounced by a basketball player on the floor bounces back up at her.
According to Newton's Third Law of Motion, the statement above simply means that in every interaction, there is a pair of forces acting on the two interacting objects i.e the ball and floor. The size of the force on the ball equals the size of the force on the floor. These two forces are called action and reaction forces and are the subject of Newton's third law of motion.
Hence, the ball bounced by the basketball player on the floor would bounce back in equal magnitude.
A minibus drives with a constant speed of 32 km/h. How long will it take to travel a distance of 48 kilometers?
Distance covered = (speed) x (time)
Time = (Distance covered) / (speed)
Time = (48 km) / (32 km/hr)
Time = (48/32) hr
Time = 1.5 hrs (1 hour 30 minutes)
Which radio wave technologies would be unaffected by satellites that are not working properly?
space communication and television broadcasting television broadcasting and GPS O MRI and radio telescopes
O radio telescopes and space communication
Answer:
MRI and Radio telescopes
MRI and radio telescopes would be unaffected by satellites that are not working properly.
What is radio wave?The longest wavelengths in the electromagnetic spectrum are found in radio waves, which typically have frequencies of 300 gigahertz (GHz) and lower. The wavelength for 300 GHz is 1 mm, which is shorter than a grain of rice, while the wavelength for 30 Hz is 10,000 km (6,200 miles) (longer than the radius of the Earth).
Radio waves move at the speed of light in a vacuum, as do all electromagnetic waves, and at a nearly identical speed in the Earth's atmosphere.
Among the given options, space communication and television broadcasting television broadcasting and GPS and radio telescopes and space communication are affected by satellites that are not working properly because they are operated by satellite technology.
Hence, only MRI and radio telescopes would be unaffected by satellites that are not working properly.
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EASY PLEASE HELP. As the rocket rises, it's kinetic energy changes. at the time the rocket reaches its highest point most of the energy of the rocket has been-
A) permanently destroyed
B) transformed into potential energy
C) converted to friction
D) stored inside the body of the
Answer:
c
Explanation:
3. A car has an acceleration of +2m/s2. What does this tell you about the velocity of the car? What
is meant by an acceleration of -2m/s2?
Answer:
acceleration is the rate of change of velocity
therefore in the above statement, the velocity increases twice per second.
when acceleration is negative, then it is accelerated motion.
ie. the car accelerates twice per second
What it the direction of the weight or force of gravity?
Answer:
The weight is distributed throughout the airplane, but we can often think of it as collected and acting through a single point called the center of gravity. In flight, the airplane rotates about the center of gravity, but the direction of the weight force always remains toward the center of the earth.
Explanation:
Convert 250mm to kilometers using conversion factor
Answer:
0.00025 kilometers
Explanation:
divide the length value by 1e+6
Answer:
250 mm = 0.00025 km.
Explanation:
250 mm equal 0.00025 km
Conversion details
To convert mm to km use the following formula:
1 mm equals 0.000001 km
So, to convert 250 mm to km, multiply 0.000001 by 250 i.e.,
250 mm = 0.000001 * 250 km = 0.00025 km
(hope this helps can i plz have brainlist :D hehe)
Which of the following statements BEST explains why ball-and-socket joints have the greatest range of motion?
A.
The contours of the two bones allow for maximum movement.
B.
The even planes of the bones allow full rotation.
C.
The two matching surfaces allow for movement in multiple directions.
D.
The cup shape of the socket allows for nearly circular motion.
Answer:
its d on edge c:
The inner planets have a smaller diameter than the outer planets.
True
False
Answer:true
Explanation:
Variables in physics often include a subscript. What are subscripts used for in physics?
A.) As a numerical coefficient used in multiplication
B.) To accurately juxtapose two congruent terms.
C.) To indicate different versions of the same variable.
D.) To indicate multiplication of the variable.
Answer:
C.) To indicate different versions of the same variable.
Explanation:
Variables in physics often include a subscript. These subscripts are used for indicating different versions of the same variable in physics.
Basically, subscripts are used to represent the beginning (initial) and ending (final) position or point of a variable in physics.
For example, we would look at Gay Lussac' Law of gases.
Gay Lussac law states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas.
Mathematically, Gay Lussac's law is given by;
[tex] PT = K[/tex]
[tex] \frac{P1}{T1} = \frac{P_{2}}{T_{2}}[/tex]
Where;
[tex] T_{1} [/tex] represents the initial temperature.
[tex] T_{2} [/tex] represents the initial temperature.
[tex] P_{1} [/tex] represents the initial pressure.
[tex] P_{2} [/tex] represents the initial pressure.
Note: 1 and 2 are the subscript while T and P are the variables.
Differences between luminous and non luminous as a source of light.
Explanation:
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Hi
Differentiate between luminous and non luminous objects.user
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The difference between luminous and non-luminous objects are -:
1. Luminous objects are the objects which emit light energy by themselves are called luminous objects. Whereas, non-luminous objects are the objects which does not emit light energy by themselves. 2) Luminous objects cause the sensation of light. Whereas, non-luminous objects do not cause the sensation of light. 3) Luminous objects are seen on their own. Whereas, non-luminous objects are seen due to luminous objects. 4) Examples of luminous objects are sun, candle, electric bulb. Whereas, examples of non-luminous objects are the moon, chair, plants.
Answer:
Explanation:
Objects that can emit light energy by themselves are known as luminous objects. These objects can cause the sensation of light.Objects that cannot emit light energy by themselves are known as non-luminous objects.These objects do not cause the sensation of light.
Please help its urgent 10 points!!
When you jump off a step, you usually bend your knees as you reach the ground. By doing this, the time of impact is about 10 times longer than what it would be in a stiff-legged landing and the average force on your body is
unchanged
increased by 100
increased by 10
reduced by 10
The average force on our body when jump off a step, having a stiff-legged landing is 10 time smaller. Thus, the correct answer is option D, reduced by 10.
What is average force?The average force is the force exerted by an object moving at a given rate of speed, i.e. velocity, over a given time period. The term "average" is used here to indicate that the velocity is not instantaneous or precisely measured.
When we jump from a certain height and bend our knees upon reaching the ground, the time it takes to come to complete rest is increased by ten times , and the impact force is reduced to one-tenth of its initial value. This is consistent with Newton's second law of motion, which states that the rate of change in velocity is proportional to the force applied to the body.
Therefore, if you make the time of the impact about 10 times as great as for a stiff-legged landing, the average force that you experience would be 10 times smaller.
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A crate moves DOWN an inclined plane below with a
diagram for the crate?
Answer:
The answer should be the one on the top in the picture.
Explanation:
Friction is opposing the downward movement of the crate therefore the friction force is pointing upwards. that is why the answer should be the one on the top of the picture.
What type of relationship exists between the comma teasel and all of the other plant
Answer:
Parasitic Relationship
A symbiotic relationship that is mutualism exists between the comma teasel and all of the other plants.
What is a Symbiotic relationship?Symbiosis or symbiotic relationship is any type of close and long-term biological interaction which is present between two different biological organisms, be it mutualistic relationship, commensalistic relationship, or parasitic relationship. The organisms, each termed as a symbiont, must be of different species.
The comma teasel and all of the other plants share a relationship where, the comma teasel pollinates flowers of different plant species. Pollination is important for the reproduction in plants and in return, the plants provide nectar to the organism.
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What will be the value of both charges if they are 5 cm apart and suffer a
attraction force of 5.2 N.
Answer:
[tex] \boxed{q = 1.2 \times {10}^{ - 6} C}[/tex]
Explanation:
[tex]f_e = \frac{{q}^{2}k }{ {r}^{2} } \\ q = \sqrt{ \frac{f_e( {r}^{2} )}{k} } = \sqrt{ \frac{5.2(5 \times {10}^{ - 2} )^{2} }{9 \times {10}^{9} } } \\ q =\sqrt{ \frac{5.2(5 \times {10}^{ - 2} )^{2} }{9 \times {10}^{9} } } = \sqrt{ \frac{0.013}{9 \times {10}^{9} } } \\ q = 1.2 \times {10}^{ - 6} [/tex]
Draw the position vs. time graph for a person walking at a constant speed of 1m/s for 10 seconds. On the same axes, draw graph for a person running at a constant speed of 4m/s
Plot a graph, constant speed of movements represented as straight lines. Time on X axis (seconds) and position on Y axis (metres) , calculated by moving, e.g 4metres in a second.
A river flows at 2.50 m/s to the north,
while a boat travels from south to north with a
constant velocity of 12.5
m/s relative to the water.
What is the velocity of the boat relative to an
observer at rest on the shore?
Answer:
15 m/s towards the North
Explanation:
we need to add both velocities to find the effective velocity from the point of view of an observer at rest on the shore:
2.5 m/s + 12.5 m/s = 15 m/s pointing North
Describe the factors that affect the stopping distance of a vehicle. In your answer explain the difference between thinking distance braking distance and stopping distance how they are related and factors which affect their lengths? 6 marks
Please can anyone help me ASAP please
Answer:
In an emergency, a driver must bring their vehicle to a stop in the shortest distance possible.
Stopping distance = thinking distance + braking distance
This is when: thinking distance is the distance a vehicle travels in the time it takes for the driver to apply the brakes after realizing they need to stop .
braking distance is the distance a vehicle travels in the time after the driver has applied the brake .
Reaction times vary from person to person, but are typically 0.2 seconds (s) to 0.9 s. A driver's reaction time can be affected by:
-tiredness
-drugs
-alcohol
-distractions
Longer reaction times increase the thinking distance when stopping from a given speed.
There are different ways to measure reaction times. One simple method involves dropping a ruler between someone's open thumb and forefinger. The further the ruler falls before being stopped, the higher the reaction time of the person grabbing the ruler. The ruler can be marked in s rather than in mm.