Answer:
The answer is option DExplanation:
From the question we are finding the final velocity of the bicycle
To find the final velocity given the initial velocity , acceleration and time we use the formula
v = u + at
where
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
From the question
u = 10 m/s
a = 6 m/s²
t = 20 s
Substitute the values into the above formula and solve
That's
v = 10 + 6(20)
= 10 + 120
We have the final answer as
130 m/sHope this helps you.
Answer:B
26m/s
Explanation:
What is the area of a rectangle whose sides are 3.2 m and 8.01 m? Answer in units of m²
Answer:
25.632 m²
Explanation:
area = a*b
area = 3.2m * 8.01m
area = 25.632 m²
Explanation:
sides:3.2m,8.01marea of rectangle=l×b=3.2×8.01[tex]3.2 \times 8.01 = 25.632[/tex]
area=25.632m²Which atom is involved in giving your heart energy to beat?
carbon
gold
oxygen
Iron
which of the following is a quantitative observation?
a. A rough surface
b. An apple is red on color
c. Acid tasting sour
d. A leaf is 10cm long
A person lifts a load of 60kg ustag a wheel and axle
Of VR 3. If the diameter of the axle is 5 cm, find the
radius of the wheel, MA and effort applied . Also find
its efficiency
Explanation:
Hope it will help you alot.
please help find the clockwise and anticlockwise
Answer:
clockwise is 2.5 Nm
Anticlockwise is 0.25 F Nm.
Explanation:
Moment is equal to force × distance
what is the formula for solving force
Answer:
[tex]\boxed{\sf{f=m*a}}[/tex]Explanation:
The formula of force is:
[tex]\Longrightarrow: \sf{F=M*A}[/tex]
F= forceM= massA= accerlerationForce = Mass* Acceleration
I hope this helps. Let me know if you have any questions.
Derive the unit of intensity???
My answer is "Watt per square meter".
Explain the following (using the concepts of moment, center of gravity and stability.) a) Racing cars are low, with wide wheels. b) It is difficult to steer a bicycle by gripping the center of the handlebars
Answer:
b
Explanation:
A charge of 12c passes through an electroplating apparatus in 2 min, what is the average current?
Answer:
Explanation:
If I am not wrong
current = charge/time
All you have to take care of is the units should be in the same system
so
current = 12/(2*60) --------- 2 min = 2*60 sec
current = 12/120 = 0.1 amp
1) Displacement is to velocity as ____________ is to acceleration. A) direction B) speed C) time D) velocity
Answer: C) time
Explanation:
Cumulative Problem 1
A typical human cell is approximately 11 um in diameter and enclosed by a membrane that is 4,4 nm thick. To
simplify the calculations, model the cell as a sphere.
1) What is the volume of the cell? (Express your answer to two significant figures.)
Answer:
Volume, [tex]V=696.55\ \mu m^3[/tex]
Explanation:
Given that,
The diameter of a human cell is 11 μm
It is enclosed by a membrane that is 4,4 nm thick.
We need to find the volume of the cell. The cell is spherical in shape. The volume of a sphere is given by the formula as follows :
[tex]V=\dfrac{4}{3}\pi r^3[/tex]
r is the radius of the sphere, r = 5.5 μm
So,
[tex]V=\dfrac{4}{3}\times 3.14\times (5.5)^3\\\\V=696.55\ \mu m^3[/tex]
So, the volume of the cell is [tex]696.55\ \mu m^3[/tex].
the pacific ocean has a surface area of about
Answer:
150,000,000 km 2
Explanation:
Steve walks from his house 5 km South then turns east and walks 2 km. Then he walks 9 km North to his older sister's house. She gives him a ride to his friend Fred's house 2 km West. Find his distance
Given :
Steve walks from his house 5 km South then turns east and walks 2 km. Then he walks 9 km North to his older sister's house. She gives him a ride to his friend Fred's house 2 km West.
To Find :
The total distance covered by Steve .
Solution :
We know , distance is the actual measurement space between two points .
Now , total distance travelled by Steve is the sum of all distance travelled .
[tex]T=5+2+9+2\\\\T=18\ km[/tex]
So , total distance covered by Steve is 18 km .
Hence , this is the required solution .
The distance Steve traveled is mathematically given as
T=18Km
What is distance has Steve traveled?Question Parameters:
Steve walks from his house 5 km South then turns east and walks 2 km.
Then he walks 9 km North to his older sister's house.
Generally, the total distance has Steve traveled is mathematically given as
T=5+2+9+2
T=18Km
In conclusion, because the distance is the measure of space b/w two points the total distance traveled is
T=18Km
Read more about Mesurement
https://brainly.com/question/17972372
Using the following equation, find in seconds 145m = 9 m/s x t-35m
Answer:
t = 20 s
Explanation:
145 m = 9 m/s × t – 35m
We can obtain the value of t in seconds by doing the following:
145 m = 9 m/s × t – 35m
Add 35 m to both side as shown below:
145 m + 35 m = 9 m/s × t – 35m + 35 m
180 m = 9 m/s × t
Divide both side by 9 m/s
t = 180 m / 9 m/s
t = 20 s
Therefore, the value of t is 20 seconds.
88 L + 120 dL = _____________ L
100 l
Explanation:1 dl = 0.1 l
120 dl = 120×0.1l = 12 l
88 l + 12 l = 100 l
what do you mean by electromagnet induction?under what condition is this phenomenon possible?
Answer:
Electromagnetic induction is a phenomenon in which a changing magnetic field across a loop of wire results in the generation of an induced emf. When there is relative motion between a magnet and the coil, magnetic flux changes and hence an electromotive force is generated in the coil.
what is the main aim of pokhara regional international airpot project
Answer:
Explanation:
The main aim of pokhara regional international airpot project is to provide improved air transportation services to the people. It will also strengthen the country's civil aviation sector and contribute to economic and social development, as well as tourism.
hope this helps
plz mark as brainliest!!!!!!
The main aim of Pokhara regional international airport project is to improve the country's aviation services and contribute to economic and social development as well as tourism.
calculate The number of neutrons present in the nucleus if an atom X with number of electron 15, and mass number 31. identify the Element..
ans=17. Chlorine
Explanation:
You subtract 15 which is the electron from 35 which is the mass number to get the neutron, and note number of electrons is same as number of protons. chlorine is the 17th element of the periodic table
the image formed by a convex mirror of focal length 30 cm is a quarter of the length of the object the distance of the object from the mirror is
Answer:
The answer to the question is 90 cm i.e the object distance is 90 cm from the mirror.
CALCULATION:
As per the question, the focal length of the convex mirror f = 30 cm.
The magnification is: 1/4
We are asked to calculate the object distance [u].
As per the sign convention for reflection, the measurements taken along the direction of light is taken as positive and its reverse is taken as negative.
The transverse measurement above the principal axis is taken as positive and below the principal axis is taken as negative.
Hence, the focal length of the convex mirror f = +30 cm.
The image formed by a convex mirror is virtual and erect.
Hence, the magnification will be positive.
Hence, magnification m = +1/4=+0.25
The relation between focal length, magnification and object distance is given as -
m= f/f=u
u= m=1/m multiplyed by f
= 0.25=1/0.25 multiplyed by -(30)
= -90 cm [ans]
Here, the negative sign is due to the fact that object distance is measured opposite to the direction of light.
(sorry, brainly didn't allow me to put pictures of the calculation)
hope this helps :)
Microwave ovens heat food through the process of A) COnduction B) Convection C) Radiation D)Stratification
Answer:
[tex]\huge\boxed{Radiation}[/tex]
Explanation:
In microwave, there are waves called "microwaves" as per the name. So, The heating of food is done with the help of waves. Radiation is "the transfer of heat through waves". That is why the process of heating food in a microwave is "Radiation".
Answer:
[tex]\huge \boxed{\mathrm{\bold{C.} \ Radiation}}[/tex]
Explanation:
Microwaves heat food through the form of waves.
The waves are electromagnetic waves that transfer heat through the process of radiation.
if an object is moving with constant speed then its distance time graph will be a straight line. a) along time axis b) along distance axis c) parallel to time axis d)inclined to time axis.
Answer: I’m not sure but the time and distance will be increasing while they required the distance time so my answer is ((A))
Explanation:
Rearrange the formula F=ma, and solve for the variable (a)
Answer:
a = F/m
Explanation:
So we have to isolate a, in order to do this we need to move m to the other side, and we do that by diving both sides by m, resulting in a = F/m
a bullet of mass 0.01kg is fired from a gun weighing 5.0 kg. if initial velocity of the bullet is 250m/s. Calculate the velocity with which the gun recoils.
Answer:
The formula is MgVg=MbVb.
which is 5×Vg=0.01×250.
5Vg=2.5.
Vg=2.5/5.
Vg=0.5m/s.
2. The stage choreography for a play requires an
actor to walk 5 steps forward, 9 steps left, and
2 steps backward to be standing over the trap
door. What are the components of the actor's
motion from the starting position?
O a. 7 steps left and 2 steps forward
Ob.7 steps left and 2 steps backward
O c. 9 steps left and 3 steps backward
d. 9 steps left and 3 steps forward
Answer:
D
Explanation:
Given that the actor walk 5 steps forward, 9 steps left, and 2 steps backward to be standing over the trap
door.
Let first consider the steps forward and the steps backwards
The displacement = 5 - 2 = 3
That is, 3 steps forward.
Therefore,
The components of the actor's
motion from the starting position will be:
9 steps left and 3 steps forward
D is the correct answer.
what is meant by input and output work
Answer:
the x and y values
Explanation:
because on the table the x is the input and y is the output
when 20 grams of water is heated from 10 c to 15 c, the required energy in joule is
Answer:
418.6 J
Explanation:
We know the specific heat for water is 4.186 kJ/kg * °C, so this can also write as 4.186 J/g * °C, so the heat increases 5 C in this question, so you can get 4.186(J/g * C) * 5C * 20g = 418.6 J
What is the velocity of a rocket if it travels a distance of 2400 m in 3 s?
Answer:
v = 800 m/s
Explanation:
Given that,
Distance, d = 2400 m
Time, t = 3 s
We need to find the velocity of a rocket. Distance covered per unit time equals velocity. So,
[tex]v=\dfrac{d}{t}\\\\v=\dfrac{2400\ m}{3\ s}\\\\v=800\ m/s[/tex]
So, the velocity of the truck is 800 m/s.
How fast will a boat that normally travels 10km/h in still water be moving with respect to land if it sails directly across (perpendicularly) a stream that’s flows at 10km/h ?
Answer:i think 20km
Explanation:
Melody is riding her mountain bike along a trail with multiple hills. At the bottom of the second hill, she has 3200 J of kinetic energy. At the top of the third hill, when she is going the slowest, her potential energy measures 1650 J. Which statement below is true? A. The total amount of energy at the bottom of the hill cannot equal the amount at the top, because some of the energy from the environment is gained. B. The total amount of energy at the top is equal to the amount at the bottowm, but she gained some energy as she traveled due to a higher speed going down the first two hills. C. The total amount of energy at the bottom of the hill cannot be equal to the amount at the top, because some of the energy is lost.
Answer:
Eventually it reaches bottom of hill so C
Explanation:
If the earth was hollow and you jumped into the middle, what would happen?
Answer:
Since there is a gravitational pull, you wouldn't reach the other side. You'd probably be floating in the center of the earth.