Answer:
binoculars
Explanation: I am taking astronomy
Answer: B) binoculars just took the test
Explanation:
Question 5 (1 point)
You push a 34.2 kg box with a force to 97.7 N. At what rate will the box accelerate?
Your Answer:
Answer:
2.86 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{force}{mass} \\ [/tex]
From the question
force = 97.7 N
mass = 34.2 kg
We have
[tex]a = \frac{97.7}{34.2} = 2.856725 \\ [/tex]
We have the final answer as
2.86 m/s²Hope this helps you
A 20kg object is at rest, and then speeds up to 16m/s. How much work is done on this system.
Answer:
2560 J
that the answer i came up with
If your hammer develops a loose head, you can tighten it by banging
it on the ground. A little physics secret though - it's better to bang
the hammer head up rather than head down. Explain, using inertia.
weight from the hammer head makes the inertia better making it better with the head up it. the body has less weight the inertia force isn't as good. (or something like that.)
4. In which of the following circuits will the bulb glow?
a) switch ON, a connecting wire broken
b) switch OFF
c) switch ON, no broken wire
d) switch ON, one of the wires replaced by a
rubber band
Answer:
I believe is C.
Explanation:
its quite obvious:)
how can you increase the sensitivity of a Mercury thermometer?
The sensitivity of a mercury thermometer can be increased by using a smaller mercury bulb, thinner wall and smaller bore. A smaller bulb contains less mercury and hence absorbs heat in shorter time. As a result it can response faster to temperature change.
plz help owo
What characteristic is shared by sunspots, solar flares, and coronal mass ejections? Select the two correct responses.
They are caused by outward fluctuations of the sun's magnetic field.
They appear as dark spots on the sun's surface.
They tend to occur during active periods of the solar cycle.
They appear as bright spots on the sun's surface.
Answer:
They are caused by outward fluctuations of the sun's magnetic field.
They tend to occur during active periods of the solar cycle.
Explanation:
While sun spots will appear darker than the surrounding surface, flares will tend to appear brighter. CME's are associated with massive flares.
The two correct responses are as follows:
They are caused by outward fluctuations of the sun's magnetic field.They tend to occur during active periods of the solar cycle.The following information should be considered:
At the time when sunspots should appear darker as compared to the surrounding surface, so flares should be appear brighter. CME's are along with massive flares.Due to this, the above answers are considered.Learn more: brainly.com/question/16911495
PLEASE HELP ME RIGHT AWAY, ITS DUE NOW PLEASE HELP ME!!!!!!!
Answer:
B
Explanation:
0= no movement
Answer:
Explanation:A
A school bus moves at speed of 35 mi/hr for 20 miles. How long will it take the bus to get to school
Answer:
Explanation:
Assuming school is at the end of the 20 mile route, then
20 mi / 35 mi/hr = 0.57142...hr
which is about 34 minutes 17 seconds
2. Starting from rest, a racecar has a displacement of 201 m south while accelerating at
16 m/s?. Calculate the time it takes the car to travel the 201 m.
Help solve please!
Answer:
Explanation:
Assuming you mean a = 16 m/s²
s = ½at²
t = √(2s/a)
t = √(2(201)/16)
t = 5.012484...
t = 5.0 s
how is th ekinetic energy of the particles
will mark brainliest
The kinetic energy of the particle is less after it changes from gas to liquid, (Option B).
What is the kinetic energy of a particle?The kinetic energy of a particle is the energy it possesses due to its motion. It is a scalar quantity and is dependent on the mass and speed of the particle.
The formula to calculate the kinetic energy (KE) of a particle is:
KE = ¹/₂ mv²
Where:
KE = Kinetic Energym = Mass of the particlev = Speed (velocity) of the particleThus, the kinetic energy of the particle is less after it changes from gas to liquid, because the speed of the particle is less in liquid phase than in gaseous phase.
Learn more about kinetic energy here: https://brainly.com/question/25959744
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help me plzzz
The punter on a football team tries to kick a football so that it stays in the air for a long "hang
time". If the ball is kicked with an initial velocity of 30 m/s at an angle of 60 degrees above the
ground.
a. Calculate the "hang time".
b. How far does the ball go in the horizontal direction?
c. What is the maximum altitude (height) the ball reaches?
first resolve the initial velocity of the ball into two components
1)one parallel to ground(u)
2)another perpendicular to ground(v)
call the initial velocity=p=25.4 m/s at 58.0° deg to ground
so the horizontal component of velocity=25.4cos58=13.46 m/s
so the vertical component of velocity=25.4sin58=21.54 m/s
we have nothing to do with the horizontal component of velocity as it plays no part in the hang time
only vertical component of velocity determines the hang time
hang time=2*(vertical component of velocity)/(acceleration due to gravity)
==>hang time=2*21.54/9.8=4.39 s
==>hang time =4.39 s
If I'm wrong please let me know, thank you.
Suppose that John lives on a square block that is 180 yards per side, and in the evenings, he walks with his dog around the block for a little exercise.
A) If John walks once around the block, what distance does he travel?
B) If John walks once around the block, what is his final displacement?
Answer:
It's A
Explanation:
Although I'm not sure about the second one, I'm sure the first one is A
A ball of mass 2 kg is being pulled sideways by a force 3 N to the right, and a force of 8N to the left - these are the only forces acting on it..
1.) What is the net force in the horizontal (x) direction?
2.) what is the acceleration in the horizontal (x) direction?
Answer:
Explanation:
1.) What is the net force in the horizontal (x) direction?
Fnet = 8 - 3 = 5 N left
2.) what is the acceleration in the horizontal (x) direction?
a = Fnet/m = 5/2 = 2.5 m/s² left
We can only tell the earth is rotating almost 960 miles an hour if we
a
look at other people around us as a reference point.
b
look at mountains far away from us as a reference point.
c
use a reference that is not on the earth, like the sun or stars.
Answer:
C
It is C i have to type this because i need 20 characters.
Which of the following is the best hypothesis
Answer:
Melting and frezzing are physical changes
Anne pushed a cart by 12 N. How far did the cart move if the work done was 9 J?
[tex]\\ \sf\longmapsto W=Fd[/tex]
[tex]\\ \sf\longmapsto d=\dfrac{W}{F}[/tex]
[tex]\\ \sf\longmapsto d=\dfrac{9}{12}=0.72m[/tex]
Answer:
Anne pushed a cart by 12 N.
● Force = 12 N
Work done is 9 J
● Work = 9 J
=> Work = Force × distance
[tex]=> distance = \frac{work}{force} [/tex]
[tex]=> distance = \frac{9}{2} [/tex]
[tex]=> distance = 0.72m[/tex]
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a dishwasher has a wattage of 1,500 watt. It takes the dishwasher 100 minutes to complete one wash cycle. How much energy does the dishwasher use to complete one wash cycle
Answer:
ima be honest i don't know the answer im just doing this so brainly can leave me alone sorry lol
Explanation:
blah blah blah blah blah blah blah yada yada yada i answerd this question i guess
bus travels 6 km east and then 8 km south. What is the displacement?
Answer:
d = √(6² + 8²) = 10 km
Explanation:
displacement is a vector and subject to vector addition.
Daily variations in biological and psychological processes, such as blood pressure and the secretion of hormones, are called:
A. free-running conditions.
B. REM rebound effects.
C. circadian rhythms.
D. delta brain wave activity.
How Biological Rhythms Work
How Biological Rhythms WorkDiurnal (night and day)
How Biological Rhythms WorkDiurnal (night and day)Circadian (24 hours)
How Biological Rhythms WorkDiurnal (night and day)Circadian (24 hours)Ultradian (less than 24 hours)
How Biological Rhythms WorkDiurnal (night and day)Circadian (24 hours)Ultradian (less than 24 hours)Infradian/Circalunar (1 month)
How Biological Rhythms WorkDiurnal (night and day)Circadian (24 hours)Ultradian (less than 24 hours)Infradian/Circalunar (1 month)Circannual (1 year)
According to astronomers, how many galaxies are distributed across the observable universe?
A. several thousand
B. 100 billion
C. 1 trillion
D. 50
Answer:actually it's 120 billion so you can choose 100 billion
Explanation:
Answer: 1 billion
Explanation:
FIGURE 1 shows a 10 kg uniform metal rod with 2.0 m long pivoted at its centre C. A 20 N force is exerted on the rod, 0.5 m from point C. If the rod is in equilibrium, determine the
a) force, F needed.
b) magnitude and the direction of the force exerted at point C.
Answer:
Explanation:
Assuming we are looking parallel to a horizontal pivot pin with positive UP to the top of the picture, and the 20 N force acts perpendicular to the rod.
Sum moments about C to zero assume CW is the positive moment.
The rod mass causes no moment because there is no moment arm about C.
Fsin50[1.0} - 20[0.5] = 0
F = 10/sin50
F = 13 N
Summing vertical forces to zero With R being the pin reaction at C
Ry - F - 20sin50 - mg = 0
Ry = 13 + 20sin50 + 10(9.8)
Ry = 126.32 N
Summing horizontal forces to zero assuming a right directed force is positive.
Rx + 20cos50 = 0
Rx = -12.855...
R = √(-12.855² + 126.32²) = 126.972
R = 127 N
θ =arctan(126.32/-12.855) = 95.8107... = 5.8° CCW from UP
A student practicing for a cross country meet runs 250 m in 30 s. What is the average speed
Answer:8.3m/sec 30 sec,
Explanation:
A student practicing for a track meet, ran 250 m in 30 sec. a. What was her average speed? 250 m = 8.3 m/sec 30 sec.
Energy can be transformed from one form to another. The diagram shows one such process.
Which energy transformation is represented in the diagram?
nuclear to thermal and radiant
nuclear to electrical and chemical
chemical to nuclear and radiant
chemical to electrical and nuclear
Answer:
b
Explanation:
Answer
nuclear to electrical and chemical
Explanation:
Energy can be transformed from one form to another. The diagram shows one such process.
Which energy transformation is represented in the diagram?
nuclear to thermal and radiant
nuclear to electrical and chemical
chemical to nuclear and radiant
chemical to electrical and nuclear and it is ovisly b
If the tension in the string is equal to 2 W when the stone is at its lowest point, then the tension when the stone is at the highest point will be
This question involves the concept of tension, centripetal force, centrifugal force, and weight.
The tension of the stone at the highest point is "0 N".
The centrifugal force always acts away from the circle. The tension always acts toward the support that is the center of the circle in this case. When the stone is at its lowest point, the centrifugal force, and the weight of the stone, both act downward. But the tension is pointing in the upward direction. Hence, the equilibrium equation will be:
[tex]Tension = Weight\ + \ Cenrifugal\ Force\\T = W + F_c\\T = 2\ W\ (given)\\2\ W = W+F_c\\F_c = 2\ W - W\\F_c = W[/tex]
Now, we consider the stone at the top position. Here, the centrifugal force will act in the upward direction (away from the center of the circle), while the weight and tension will be acting in the downward direction. Thus, the equilibrium equation, in this case, will be:
[tex]F_c = W+T\\T=F_c-W\\T = W-W\\[/tex]
T = 0 N
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The attached picture shows the free body diagram of the stone at different locations.
Write down the units for the following physical quantities:
a. Velocity
b. Acceleration
c. Momentum
d. Force
e. Power
f. Energy
g. Pressure
The period of rotation of Mars is 1 day and 37 minutes. Determine its frequency of rotation in Hertz.
The frequency of rotation of Mars is 0.0000113 Hertz.
Given the following data:
Period = 1 day and 37 minutes.To find the frequency of rotation in Hertz:
First of all, we would convert the the value of period in days and minutes to seconds because the period of oscillation of a physical object is measured in seconds.
Conversion:
1 day = 24 hours
24 hours to minutes = [tex]60[/tex] × [tex]24[/tex] = [tex]1440[/tex] minutes
[tex]1440 + 37 = 1477 \; minutes[/tex]
1 minute = 60 seconds
1477 minute = X seconds
Cross-multiplying, we have:
[tex]X = 60[/tex] × [tex]1477[/tex]
X = 88620 seconds
Now, we can find the frequency of rotation of Mars by using the formula:
[tex]Frequency = \frac{1}{Period}\\\\Frequency = \frac{1}{88620}[/tex]
Frequency of rotation = 0.0000113 Hertz
Therefore, the frequency of rotation of Mars is 0.0000113 Hertz.
Read more: https://brainly.com/question/14708169
Which of the following statements is false about photosynthesis and cellular respiration?
O Photosynthesis uses carbon dioxide.
O Cellular respiration gives off carbon dioxide.
O Photosynthesis makes glucose.
O Both photosynthesis and cellular respiration occur in all living things.
Answer:
photosynthesis uses carbon dioxide
Explanation:
Consider the following statements:
1. Carbon dioxide, chlorophyll, and sunlight are all essential for photosynthesis.
2. Rate of photosynthesis is maximum in red light and minimum in green light.
3. Increase
concentration decreases the rate of photosynthesis.
Which of the statements given above are correct about photosynthesis?
The image shows a dam.
A large dam has point X behind it where the water level is high and point Y below it to, which the water flows.
Which descriptions best fit the labels?
X: kinetic energy
Y: potential energy
X: potential energy
Y: kinetic energy
X: mechanical energy
Y: electrical energy
X: electrical energy
Y: mechanical energy
Answer:
The Correct answer is B on Edge
Explanation:
I did the quiz! :)
the position of an ant and a spider in a room are A(2,3,5) and B(6,0,8) determine the distance
Answer:
[tex] |d| = \sqrt{ {(x_{2} -x_{1})}^{2} + {(y_{2} -y_{1})}^{2} + {(z_{2} -z_{1})}^{2}} \\ = \sqrt{ {(6 - 2)}^{2} + {(3 - 0)}^{2} +{(5 - 8)}^{2} } \\ = \sqrt{16 + 9 + 9} \\ = \sqrt{34} [/tex]
The position of an ant and a spider in a room are A(2,3,5) and B(6,0,8) the distance between ant and spider is 5.83 m.
What is Distance between two points?The distance formula states that the distance between two points in xyz-space is the square root of the sum of the squares of the differences between corresponding coordinates A( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] , [tex]z_{1}[/tex] ) and B( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] ,[tex]z_{2}[/tex]),
AB² = ([tex]x_{2}[/tex] - [tex]x_{1}[/tex])² + ([tex]y_{2}[/tex] - [tex]y_{1}[/tex])² + ( [tex]z_{2}[/tex] - [tex]z_{1}[/tex] )²
In reality, the Pythagorean Theorem is nothing more than the distance formula. Draw a right triangle using the segment AB as its hypotenuse in order to get the distance AB between points A( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] ) and B( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] ).
Given that in the question two points are A(2,3,5) and B(6,0,8), so the distance between them is
AB² = ([tex]x_{2}[/tex] - [tex]x_{1}[/tex])² + ([tex]y_{2}[/tex] - [tex]y_{1}[/tex])² + ( [tex]z_{2}[/tex] - [tex]z_{1}[/tex] )²
AB² = 4² + 3² + 3²
AB² = 34
AB = 5.83 m
Position of an ant and a spider in a room are A(2,3,5) and B(6,0,8) the distance between ant and spider is 5.83 m.
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Potential energy is due to_blank_?
Answer:
To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.
Explanation:
if it helped plz mark brainiest
