We have that the the instantaneous speed is given as
[tex]v=15m/s[/tex]
From the Question we are told that
Calculate the instantaneous speed
Accelerates at
[tex]a=10 m/s2 \\\\t= 1.5 seconds.[/tex]
Generally the equation for the instantaneous speed is mathematically given as
[tex]v=\frac{d}{t}[/tex]
Acceleration
[tex]a=\frac{v}{t}[/tex]
Therefore
[tex]v=10*1.5\\[/tex]
[tex]v=15m/s[/tex]
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What makes a good scientific question? (1 point)
o It helps decide the right choice in a situation.
o It directs how to apply knowledge.
O It is answered by observation and evidence.
O It is outside the bounds of natural phenomena.
C. It is answered by observation and evidence.
Good scientific explanations are defined, measurable and controllable. They can be answered by an experiment.
how far will a rubber ball fall in 10 seconds
what would be the final velocity of this and what would be the average velocity
Answer:
490 meters
Explanation:
hope this helps!
Warm air is more dense than cool air. Warm air is less dense than cool air Warm air and cool air have the same density
Answer:
You are exactly right. The molecules in hot air are moving faster than the molecules in cold air. Because of this, the molecules in hot air tend to be further apart on average, giving hot air a lower density. That means, for the same volume of air, hot air has fewer molecules and so it weighs less
Bobo, the clown, wants to set the world record for the furthest range traveled by a clown shot out of a cannon. Write a sentence describing the cannon that Bobo would need to use to accomplish this feat. Be sure to include the necessary initial velocity and the required angle of the cannon. Score: 0 / 1
In the human cannonball act makes use of of a special type of "cannon" that more safely ejects a person who acts as the "cannonball"
The world record for the longest flight by a human cannonball is approximately 194 feet and therefore the human cannon catapult that Bobo would need is one that would be able to propel him with an initial velocity of more than 120 kilometer per hour (more than the speed of the current record holder) with the cannon directed at an angle 45 degrees above the horizonal
The reason the values given above are correct is as follows:
The world record of the furthest range of the human cannonball is 193 ft. 8.8 inches. The maximum claim for the furthest range of a human cannonball is 200 ft. 4 in. Therefore, to safely set the world record would be to reach a range of 194 feet
The speed with which the world record was accomplished (120 km/jhr) should be expected to be exceeded given, horizontal speed in free fall motion is constant (decreasing in the presence of drag), and the conditions are likely to be more or less similar
In order to reach the furthest range, R, at the possible speed, the angle of inclination of the "cannon" required is 45°, according to the range formula, which is given as follows;
[tex]Range, \ R = \dfrac{v^2 \times sin(2\cdot \theta)}{g}[/tex]
The maximum range is given where θ = 45, such that sin(2·θ) = sin(90°) = 1
A further range than the world record van be obtained using the above values
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Write any three condition required for nuclear fussion that are found in the sun.
Answer:
High pressure squeezes the hydrogen atoms together. They must be within 1x10-15 meters of each other to fuse. The sun uses its mass and the force of gravity to squeeze hydrogen atoms together in its core. We must squeeze hydrogen atoms together by using intense magnetic fields, powerful lasers or ion beams.
What are the similarities between theory and law ?
A law is created using a theory
Write a formular to show force experienced by charge in magnetic field.
Answer:
[tex]{ \boxed{ \sf{F = Bev}}}[/tex]
Explanation:
F » Force
B » Magnetic flux density
e » magnitude of charge
v » voltage
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Which of the following best represents R=A+B ?
A)
B)
C)
Answer:
C
Explanation:
Options A and B are not even pointing in the direction as the vectors in the question so they shouldn't even be considered.
Option C looks like the closes since vectors A and B are pointing in a similar direction (negative x-axis)
The best representation for the resultant vector representing the resultant R=A+B would be option C because the result is represented by the closing side of the triangle, therefore the correct answer would be C.
What is a vector quantity?The quantities that contain the magnitude of the quantities along with the direction are known as the vector quantities.
Examples of vector quantities are displacement, velocity acceleration, force, etc.
As given in the problem we have to find out the resultant vector from the sum of vector A and vector B,
The resultant of the vector can be calculated with the help of the triangle law of the vector addition in which the sum is given by the closing side of the triangle.
Thus, the correct answer is option C.
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plz help me with this question
Explanation:
Here,
initial velocity(u)=25m/s
final velocity (v)=0m/s
time taken(t)= 5 second
Now,
A bicyclist steadily speeds up from rest to 6.00m/s in 7.30s.
How far did she travel during this time?
Answer:
21.899 m
Explanation:
The explanation here is a little differe because we are starting from rest. So, everyone does physics a little differently, but what I would start with is trying to find the accelaration. I've given the formula, now you are able to plug this into the displacement formula where you Velocity Initial = 0m/s (Since you are starting from rest) and V final = 6.00 m/s...
You just plug numbers into the formula after solving for accelaration and do some simple algebra! I hope this helps! I am attaching a new pdf for visuals! If you can't open it let me know! Also there is a star by accelaration because I didn't know if I spelled it right, sorry!
what is the answer to {36m= ? dm}
Answer:
360
Explanation:
just add a 0 when using dm
Every mass exerts a gravitational force on every other mass.
a. True
b. False
Answer:
A
Explanation:
newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses
When you put water in the ice tray in the freezer, water becomes ice. Ice is more ordered than water. Is this a violation of Second Law of Thermodynamics
Answer:
No because the heat that moved out of the water to make ice caused an even greater disorder in the environment around it.
Explanation:
Convert 4 centimeters to meters using dimensional analysis and scientific notation. Please go step by step as I am having difficulty with this subject.
Answer:
[tex]thank \: you[/tex]
A car traveling at 90 m/s can stop in a distance of 110 m. What is the magnitude of the cars acceleration as it slows down?
I think I have already answer this question. Anyways please do let me know whether it is useful or not
Identify the parts of the body based on the medical terminology given:
1. mr. heart describes pain that is midline, superior to the chest but inferior to the chin.
2. miss triangle says that she has a ‘tweak’ that is superior to the waist, inferior to the breast bone, lateral to the umbilicus on the left side of the body on the anterior surface.
3. mr. square states that he has pulled a muscle, inferior to the buttocks, superior to the knee, medial to the right side of the body on the posterior surface.
4. miss circle complains of a sharp pain inferior to her ears, superior to the scapula at midline on the posterior side of her body.
5. mr. x says that he has numbness and tingling on the anterior side of his left arm, distal to the wrist.
6. mrs. diamond describes a throbbing pain on the posterior side of her body, inferior to her shoulder blades and superior to her waist.
7. miss arrow states that she has had a pain on the left side of her body, superior to her neck and inferior to her forehead, lateral to her nose.
8. mr. teardrop says that he has been bitten by a spider lateral to his umbilicus on the anterior aspect of his body, superior to his hip on the right side of his body.
9. miss eight describes a burning sensation on the posterior side of her body, lateral to the spine on the left side of the body inferior to the shoulder blade, inferior to the waist but anterior to the knee.
10. mr. four shows you a deep wound on the anterior side of his body, medial to the left hip, lateral to the umbilicus, inferior to the collarbone and anterior to the waist.
Answer:
1. Right hypochondriac region (upper, right).
2. Epigastric region (upper, middle).
3. Left hypochondriac region (upper, left).
4. Right lumbar region (middle, right).
5. Umbilical region (centre).
6. Left lumbar region (middle, left).
7. Right iliac region (lower, right).
8. Hypogastric region (lower, middle).
9. Left iliac region (lower, left).
Explanation:
1. Right hypochondriac region (upper, right)- Liver, gallbladder, right kidney, small intestine.
2. Epigastric region (upper, middle)- stomach, liver, pancreas, duodenum, spleen, adrenal glands
3. Left hypochondriac region (upper, left)- Spleen, colon, left kidney, pancreas
4. Right lumbar region (middle, right)- Gallbladder, liver, right colon
5. Umbilical region (centre)- Umbilicus, parts of the small intestine, duodenum
6. Left lumbar region (middle, left)- Descending colon and left kidney
7. Right iliac region (lower, right)- Appendix and cecum
8. Hypogastric region (lower, middle)- Bladder, reproductive organs, sigmoid colon
9. Left iliac region (lower, left)- Descending and sigmoid colon.
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In Physics what's does cos and sin stand for?
Answer:
Sin = Sine
Cos = Cosine
Explanation:
Sin(θ) = Opposite/Hypotenuse
Cos(θ) = Adjacent/Hypotenuse
a car is traveling north. can its acceleration vector ever Point South? explain
When a car is traveling north, its acceleration vector can point south when it is slowing down.
A vector quantity has both magnitude and direction. The direction of a vector is always shown by the direction to which the arrow points.
If the car is travelling north, the direction of the acceleration vector will continue to point northwards.
However, when the car slows down, the direction of the accelerating vector will now point southwards.
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12
The motion of an object can be described by it
A.
speed.
В.
position.
C.
direction.
D.
all of these
Answer:
D
Explanation:
The motion of an object can be described by its speed, position, and direction so its all of the above
Select the correct answer.
Calculate the force of gravity on a 1–kilogram box located at a point 1.3 × 107 meters from the center of Earth. (The value of G is 6.673 × 10-11 newton meter2/kilogram2. The mass of Earth is 5.98 × 1024 kilograms.)
A.
2.36 newtons
B.
3.58 newtons
C.
4.87 newtons
D.
8.95 newtons
Answer:
A. 2.36 Newtons
Explanation:
F = GmM/d²
F = 6.673 x 10⁻¹¹(1)(5.98 x 10²⁴) / (1.3 x 10⁷)²
F = 2.36121...
Very poor question design.
mass of box... 1 significant digit
distance... 2 significant digits
mass of earth... 3 significant digits
value of G... 4 significant digits
Answer precision to 3 significant digits is not justifiable
Add these two velocity vectors to find the magnitude of their resultant vector.
5.8 meters/seconds + 1.2 meters/seconds
The magnitude of their resultant vector is 4.6 meters/seconds
Since we are to add the velocity vectors in order to find the magnitude of their resultant vector.
Hence:
Resultant vector magnitude=5.8 meters/seconds + (1.2 meters/seconds)
Resultant vector magnitude=5.8 meters/seconds-1.2 meters/seconds
Resultant vector magnitude 4.6 meters/seconds
Inconclusion The magnitude of their resultant vector is 4.6 meters/seconds
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Which statement is true?
The combustion of biomass can replace fossil fuels in conventional power plants.
Hydroelectric energy uses the energy from the sun, which is a renewable resource.
Oil is a non-renewable resource that is hardly ever used, so there is not a concern of depleting the Earth's supply.
Solar energy is a non-renewable resource that is used by many countries all over the world.
Answer:
Hello,
The combustion of biomass can replace fossil fuels in conventional power plants, which is true.
I hope I helped you :)
If it takes Tanya 9.4 hours to get to her cousin's house while driving an average of 40 mph, how far away does her
cousin live?
Answer:
376 miles
Explanation:
speed = distance / time
therefore distance = speed * time
distance = 40 miles/hr * 9.4 hr
then
distance = 375 miles
When are theories constructed?
A. after data is collected from an experiment
B. after there is numerous data collected during the experiment
Hi, This is the answer...
Theories are constructed after there is numerous data collected during the experiment.
Hope it helps you...Pls mark brainliest if it helps you....(by Benjemin)
The correct answer is B.
Theories are constructed after there is numerous data collected during the experiment.
Theory construction is simply a process of formulating and bringing together different components of theories into a single form that is more meaningful.
These theories are usually supported by evidence (data) gathered from many experiments.
In addition, these theories may answer the basic questions of our universe such as;
how does nature work? and,why it exhibits certain characteristicsThus, from the given options, only option B matches the above explanations.
"theories are constructed after there is numerous data collected during the experiment"
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Which correctly describes electric potential, electric field, and electric (or electrostatic) force?
a. The potential, the field, and the force are vector quantities.
b. The potential, the field, and the force are scalar quantities.
c. The potential and the field are scalar quantities, and the force is a vector quantity.
d. The potential and the force are vector quantities and the field is a scalar quantity.
e. The potential is a scalar quantity, and the field and the force are vector quantities.
f. The potential and the force are scalar quantities, and the field is a vector quantity
Answer:
E
Explanation:
A vector is a physical quantity that has magnitude and direction while a scalar is a physical quantity that has magnitude only
*electric potential is a scalar quantity because it only has magnitude
*electric field and electric force are vector quantities because they have magnitude and direction
poopybutt pickle juice
Answer:
poopybutt pickle juice????? baa?
Explanation:
Convert the following in to SI units without changing its values
a. 4000 g
b. 2.4 km
Plz help. I will make you a brailyest and 10,000 $
Answer:
4000g
Thank You
Hope it helps
Answer:
a 4 kg
b 2400 meter
Explanation:
International system of units Sl
the units are
kelvin for temperatures
meter for distance
Ampere for electric current
Second for time
Kg for mass
...etc
1. Calculate the height of tree, 250 m away that produces
an image 1.5cm high
in a
pin-hole camera of width 30 cm.
Answer:
Explanation:
1.5/30 = x/250
x = 12.5 m
write two differences between practical machine and ideal machine
Answer:
Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done. So these are the differences between Ideal Machine and Practical Machines.
what is work - energy theorem ??
The work-energy theorem explains the idea that the net work - the total work done by all the forces combined - done on an object is equal to the change in the kinetic energy of the object. After the net force is removed (no more work is being done) the object's total energy is altered as a result of the work that was done.
This idea is expressed in the following equation:
is the total work done
is the change in kinetic energy
is the final kinetic energy
is the initial kinetic energy
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