Explanation:
work = 0
Work is zero because it remains in its place x=0
Question 1. What is the acceleration if the initial velocity was 5 m/s, the final
velocity is 20 mhy and the time taken is 3 s?*
Answer:
a = 5m/s²
Explanation:
a = (v - u)/t
a = (20 - 5)/3
a = 15/3
a = 5m/s²
pls give brainliest
fighter jets can travel at speeds of 2,500 miles per hour. how far will a fighter jet travel in 30 seconds at that speed?
Answer:
75000 mph
Explanation:
Explanation:
1 hr= 3600 sec
speed( miles/ sec)= 2500/3600
speed= 0.6944 miles/sec
speed=dis./time
0.6944= dis./30
dis.= 30 ×0.6944
dis.= 20.832 miles
Which of the following is a chemical property?
Answer:
Reactivity with other chemicals
Toxicity
Coordination number
Flammability
Enthalpy of formation
Heat of combustion
Oxidation states
Chemical stability
Explanation: just think of something that wont stay the same
Answer:
Flammability I believe. I'm not for sure tho.
NEED ANSWER ASAP WHOEVER ANSWERS THE QUICKEST ILL GIVE BRAINILEST ANSWER!!!
For which one of the following motions is the object's displacement different than the
distance traveled?
a. A car accelerates from rest to a high speed.
b. After a home run, a baseball player runs all the way around the bases.
c. A buggy car moves across the floor at a constant speed.
what the answer for my amswer get a brainly list plessss
jhelppppp
meeee i neeed the best answeerrrrr
Answer:
A
Explanation:
to simplify let's make it apart the denominator into three part
[tex] \frac{ {3xy}^{2} }{ {x}^{2} {y}^{2} } - \frac{ {8x}^{2} y}{ {x}^{2} {y}^{2} } + \frac{ {5x}^{2} {y}^{2} }{ {x}^{2} {y}^{2} } [/tex]
now let's simplify
[tex] \frac{3}{x} - \frac{8}{y} + 5[/tex]
so the answer is A
hope it helps
for any question comment me ❤❤
The image on the left shows the charges on a balloon after it’s been rubbed with a wool cloth. The image on the right is a piece of tissue paper. What will happen to the tissue paper as it approaches the balloon and why? A. The tissue paper will stick to the balloon because the tissue paper is negatively charged. B. The tissue paper will stick to the balloon because the tissue paper is positively charged. C. The tissue paper will move away from the balloon because the tissue paper is negatively charged. D. The tissue paper will move away from the balloon because the tissue paper is positively charged.
When the balloon comes in contact with the tissue paper it will stick to the balloon because the tissue paper is positively charged.
What is static electricity?Static electricity is the electrical current generated when a negatively charged material polarize other material temporarily. When a material is rubbed with a conducting surface it will gain electrons and become s negatively charged.
When this negatively charged body comes in contact with a nonpolar material, The non-polar one will be polarized partially and its positive charges will allocate near the negative charges.
When the balloon is rubbed on a wool it gans negative charges and the electrons from the balloon tends to attract the positive pole of the tissue paper and the paper will stick on it. Thus, option B is correct.
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Which sports are similar to the sport that you’ve chosen? How are the sports similar? How are they different?
Answer:
sports are not that simular they are just diferrent ok bud
Explanation:
Answer:
if you chose boxing..
Explanation:
Boxing is similar to any one-on-one sport where opponents go head to head. I think it’s like wrestling, karate, and mixed martial arts. The sports are similar in that they require one opponent to overtake another. They are different in how that is accomplished. For example, karate and mixed martial arts are about striking. But wrestling is about putting someone in a hold without hitting them. Boxing and wrestling have been around for a long time. I think karate has too.
cardiorespiratory fitness improves the efficiency of the cardiovascular and the respiratory systems in delivering oxygen to the body
T
or
F
Answer:
true.
Explanation:
Which coordinates best estimates the location of Woonsocket, RI?
Answer:
\43 ° n, 72 ° w
42° 0' 30" N, 71° 30' 58" W
A bar of gold has a temperature of 22°C, and a bar of aluminum has a
temperature of 27°C. Which statement explains why the bar of aluminum ha
a higher temperature?
A. The particles that make up the aluminum bar are moving more
slowly.
B. The particles that make up the aluminum bar are moving faster.
C. The aluminum bar has a lower density than that of the gold bar.
O D. The aluminum bar has less thermal energy.
The bar of aluminum has a higher temperature than gold bar as the particles that make up the aluminum bar are moving faster.
What is temperature?Temperature is a physical quantity that expresses hot and cold or a measure of the average kinetic energy of the atoms or molecules in the system.
What is thermal conductivity?Thermal conductivity is the rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area.
What are properties of aluminum?Aluminum has low density. It has high thermal conductivity, has excellent resistance for corrosion and can be easily cast, machined and formed.
What are properties of Gold?Gold has high corrosion resistance. It is good conductor of electricity.
Aluminum has high thermal conductivity than gold. So, the particles in the aluminum bar moves faster as compared to gold. Therefore, the temperature of aluminum bar is higher than gold bar.
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Answer: 3 years ago thats crazy
Explanation:
Explain what cell theory is. Describe the history behind cell theory and the
scientists who were involved in forming the theory
Answer:
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Explanation:
i got that from google hopefully it works
Janet ran 30 meters in 4 seconds,what is her speed.
Answer:
7.5 meters per second
Explanation:
30 / 4 = 7.5
7.5 * 1 = 7.5
7.5 * 2 = 15
7.5 * 3 = 22.5
7.5 * 4 = 30
7.5 i believe it's right.
Alice climbs 100 meters directly up the face of a cliff to reach the summit. Her friend Peter hikes the long way around taking a 3 km trail to meet her at the top of the cliff. Compare the distance and displacement of the two friends.
Answer:
Alice Distance = 100 meters
Peter's Distance = 3 km
Alice Displacement and Peter's displacement are both 100 meters upwards.
Explanation:
To solve this question, we have to first define distance and displacement.
Distance is simply the measurement of the sum of all paths travelled from one point to another while displacement is measurement of the shortest distance from initial point to final point.
Now, Alice and Peter are moving from the same point.
Alice distance travelled is 100 meters.
Also, her displacement will be 100 meters because it is the shortest distance to the summit of the cliff.
Now, for Peter, he decides to take a longer route which is 3 km in distance.
However, the shortest path which is the displacement is still 100 meters.
Thus, Peter's displacement is 100 meters.
What is the resultant of vectors shown
Answer:
adding to or more vectors together . When displacement vectors are added, the result is a resultant displacement. But any two vectors can be added as long as they are the same vector quantity.
Explanation:
What do we call the condition of the atmosphere at a certain time and place?
Answer:
Weather
Weather describes what the atmosphere is like at a specific time and place, and may include temperature, wind, and precipitation. Weather is the change we experience from day to day. Climate is the long-term average of weather in a particular spot.
Explanation:
A ball is thrown straight up with a velocity of 16 m/s; what will be its velocity 2.0s after being released?
You are asked to design an experiment which is similar to Match Graph activity. If you move 3m back from the motion sensor in 2s. What is your speed?
Answer:
The speed is 1.5 m/s.
Explanation:
Given that,
Distance = 3 m
Time = 2 sec
We know that,
The position and time graph shows the speed of motion.
We need to calculate the speed
Using formula of speed
[tex]v=\dfrac{d}{t}[/tex]
Where, d = distance
t = time
Put the value into the formula
[tex]v=\dfrac{3}{2}[/tex]
[tex]v=1.5\ m/s[/tex]
Hence, The speed is 1.5 m/s.
A car is traveling at an average speed of 70 m/s. How many km would the car travel in 6.5 hrs. ?
Answer:
38,769.23 milesExplanation:
given:
A car is traveling at an average speed of 70 m/s.
find:
How many km would the car travel in 6.5 hrs. ?
solution:
distance = velocity over time
let velocity = 70 m/s
time = 6.5 hrs.
convert velocity 70 m/s into m/h for consistency of units.
70 mi. x 3600 sec. = 252,000 mi/hour
sec. 1 hr.
now plugin values into the formula d = v/t
d = 252,000 miles/hour
6.5 hours
d = 38,769.23 miles
therefore, the distance travelled in 6.5 hours with a speed of 70 m/s is 38,769.23 miles
A car goes North a distance of 120 kilometers during a time period of 3.0 hours. What is the average
speed of the car during this time interval?
Answer:
the average speed of the car during this time interval is 40 m/s i thinkk..
First to answer and gets it correct gets brainliest
What creates Earth's magnetic field? Choose the best answer from the selections below.
a
the hot, dense ball of solid iron at the Earth's inner core
b
hot swirling iron at the Earth's outer core
c
The north and south poles
d
magnetic force
Answer:
b
Explanation:
try looking it up if u need further help google is there to help you
Answer:
the answer is b
A comet is cruising through the Solar System at a speed of 50,000 kilometers per hour for 4.5 hours time. What is the total distance traveled by the comet during this time?
Answer:
The total distance traveled by the comet is 225000 [km]
Explanation:
In order to determine the travel distance we must use the following kinematics equation:
x = v*t
where:
x = distance traveled [km]
v = velocity = 50000 [km/h]
t = time = 4.5 [h]
x = 50000*4.5 = 225000 [km]
Explain an example of how energy is transferred from one form to another
you will get max points
Answer:
read the explanation
Explanation:
Purchased electricity is fed into our TVs and is converted to light and sound.
Electricity goes into an electric bulb and is converted to visible light and heat energy.
Chemical Energy is converted to Electrical Energy (stove)
Chemical food energy is converted to Energy to Work (person running).
Answer:
Gasoline/chemical is put into our cars, and with the help of electrical energy from a battery, provides mechanical energy/ kinetic energy
red is sus
Asking a question is the same thing as creating a hypothesis.
Answer:
That's not true. With an hypothesis, you are sure this whatever is going to work, open to being wrong. A question is just a question.
Explanation:
Hope this helps
16
11 Priya and Lily investigate friction
Here is the equipment they use.
massos
wooden block
forcemeter
pull
table
material
They pull the wooden block with a forcemeter
They repeat the investigation using different materials
(a) Priya says
"We must be careful because we are using heavy masses."
Lily says
"We must make this investigation safe."
Describe two things they can do to reduce the risk of hurting themselves or others.
1
2
[2]
Explanation:
the table and the wooden block
Answer:
so you should try to find what things would cause the most risk. apply these to yourself as if you were doing this project and then think which two ways you can stay safe.
Explanation:
does anyone know what Base jump is?
Answer:
BASE jumping is the recreational sport of jumping from fixed objects, using a parachute to descend safely to the ground. "BASE" is an acronym that stands for four categories of fixed objects from which one can jump: building, antenna, span, and earth (cliff).[1][2] Participants exit from a fixed object such as a cliff, and after an optional freefall delay, deploy a parachute to slow their descent and land. A popular form of BASE jumping is wingsuit BASE jumping.
Explanation:
In contrast to other forms of parachuting, such as skydiving from airplanes, BASE jumps are performed from fixed objects which are generally much lower altitude, and BASE jumpers typically carry only one parachute. BASE jumping is significantly more hazardous than other forms of parachuting, and is widely considered to be one of the most dangerous extreme sports
Velocity and Time
Using the graph above, what is the approximate velocity of the object at 5 seconds? *
During what time interval is the object slowing down? Explain how you can tell.
At what time or times was the velocity of the object about 4 m/s?
Describe the motion of the object being described in above graph.
Answer:
h=112.35
Explanation:
becuase it had to
its not b...................
sir what's the question you have all you wrote is it's not b
Ahmad was moving to the south with v= 10 km/hr ,and Mohammed was moving with half of Ahmad's speed to the North .Write the vector that represents Mohammed's speed as a magnitude and direction
I’m sorry I answered with my question but it’s really urgent I asked this multiple times and no one is answering.
you can get 35 points just help me.
Answer:
5 km/hr to the South
Explanation:
VM = VA/2
VM = 10km/2hr =5km/hr
Is this a Midterm question!!!
PLS ANSWER ASAP
A cone with a mass of 6 g has a radius measuring 5 cm and a height of 2 cm. What is its density?
A. 60 g/cm3
B. 52.33 g/cm3
C. 0.6 g/cm3
D. 0.11 g/cm3
Answer: Answer is D
I took the test little while back.
104470
Consider this group of rocks: granite, marble, and gneiss.
What property was used to group these rocks?
color
hardness
streak
O grain
Answer:
Grain
Explanation:
I just got it wrong :)
