Answer:
Plug in the given values and solve for the final velocity. Remember, when the ball is on the ground it has a height of zero.
Explanation:
Write any Four Characteristics of image, formed by Plane Mirrors .
Question :-
Write any Four Characteristics of image, formed by Plane Mirrors .Answer :-
The Image formed by Plane Mirrors are Virtual and Erect .The Image formed by Plane Mirrors are laterally Inverted .They are Same Sized as that of the Objects .The Image Distance from the Mirror is Same as the Distance of Object from the Mirror .[tex] \underline {\rule {180pt} {4pt}} [/tex]
what is instantaneous motion?
A block of mass 5kg is moved from position A to B as shown above The speed of the block is 12 m/s at A and 5 m/s at B. What is the work done by friction on the block as it moves from A to B.
Answer:
-220 j
Explanation:
For how long must an object travel at 29.8 km/s to cover 940 Gm?
Answer:
For how long must an object travel at 29.8km/s to cover 940Gm? t = 940 Gm 29.8 km/s = 940 ⋅ 1 0 9 m 29.8 ⋅ 1 0 3 m s = 9.4 ⋅ 1 0 11 m 2.98 ⋅ 1 0 4 m s ≈ 3.154 ⋅ 1 0 7 s .
Explanation:
It will take 3,15,43,674 sec to cover a distance of 940 Gm with a speed of 29.8 km/s.
How are speed, distance and time interrelated?
Speed [s], distance [d] and time [t] are related to each other by the following relation -
s = d/t
Given is an object travelling at 29.8 km/s in order to cover 940 Gm.
In 1 Gm(Gigameter) there are 1000000000 m or 10⁹ m
Speed of object [s] = 29.8 km/s = 29800 m/s.
Distance to be covered [d] = 940 x 10⁹ m
Time taken to cover the distance of 1 Gm will be -
t = 1 Gm / 29800
t = (10⁷ x 100) / 29800
t = 10⁷/ 298
t = 33557.1 seconds
Therefore, in order to travel 940 Gm, it will take -
940 x 33557.1 = 3,15,43,674 sec
Therefore, it will take 3,15,43,674 sec to cover a distance of 940 Gm with a speed of 29.8 km/s.
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For resistors in series, the _____ is the same for each resistor.
Answer:
answer is equivalent resistance
∘₊✧──────✧₊∘
Answer:
the answer is electric current
Explanation:
when resistors are connected in series current is same .
but the voltage is divided between resistors.
What has more KE a 2 kg mass at 10 m/s or a 20 kg mass at 3 m/s?
An ocean wave has a speed of 36 m/s and a frequency of 3 Hz.
What is its wavelength?
Answer:
f=4Hz
Explanation:
frequency of a wave if it has a wavelength of 3.0 m and a wave speed of 12m/s
v=fλ → f=v/λ
f=12/3
f=4Hz
3CuCl2 + 2A1 ---> 2AlCl3 + 3Cu Which type of reaction is this? O double displacement combustion synthesis single displacement decompostion
this is a single displacement reaction
It's a single displacement because Cu and Au switched places while Cl stayed in the same spot
HELP PLS-how do tadpoles differ from an adult frog?
Answer:
tadpoles do not have limbs and possess long tails, adult frogs on the other hand have two hind limbs and two fore limbs...
Explanation:
Hope it helps!!!
what makes urban heat island worse and what effects it and how can it be reduced?
Answer:
Extreme heat events often affect our most vulnerable populations first. Trees, green roofs, and vegetation can help reduce urban heat island effects by shading building surfaces, deflecting radiation from the sun, and releasing moisture into the atmosphere.
HEYYYY! PLEASE HELP ME!!
Turn this Algebraic expression into a verbal expression.
2(3j+5+8j)
I need this today! The rest of it is due today too! Thank you!! <33
Answer:
22j+10
Explanation:
that is it in a verbal expression
good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.
Correct ones are
Technical improvements that have made alternative energy sources more practical to useIncrease in concern for environment.why?
Fossil fuels are hydrocarbons
Hydrocarbons on burning with oxygen releases harmful carbon dioxide .What factors do you think contribute to the increased use of alternative energy sources during the last 40 years? CLICK ALL THAT APPLY
Technological improvements that have made alternative energy sources more practical to use ✓⇢ Technology has played a vital role in bringing out the best of alternative energy sources which helped in making a lot of things possible.
Increasing demand for fossil fuel use and demand for cars with low gas milage ✓⇢Due to the high number of population with vehicles , the demand for fossil fuel is unattainable and during the time and to save fossil fuels for the next generation, alternative energy sources are eureka moment
Increase concern for the environment ✓⇢ Alternative energy sources are a little step to save our environment which has been polluted by many toxic gases & particles.
Increase in impacts of climate changeFour forces are exerted on a disk of radius R that is free to spin about its center, as shown above. The magnitudes are proportional to the length of the force vectors, where F1 = F4, F2 = F3 , and F1 = 2F2. Which two forces combine to exert zero net torque on the disk? Select two answers.
(A) F1
(B) F2
(C) F3
(D) F4
The given magnitude of forces of F₁ = F₄, F₂ = F₃, F₁ = 2·F₂, give the
forces that exert zero net torque on the disk as the options;
(B) F₂
(D) F₄
How can the net torque on the disk be calculated?The given parameters are;
F₁ = F₄
F₂ = F₃
F₁ = 2·F₂
Therefore;
F₄ = 2·F₂
In vector form, we have;
[tex]\vec{F_4} = \mathbf{\frac{\sqrt{3} }{2} \cdot F_4 \cdot \hat i - 0.5 \cdot F_4 \hat j}[/tex]
[tex]\vec{F_2} = \mathbf{ -F_2 \, \hat j}[/tex]
Clockwise moment due to F₄, M₁ = [tex]-0.5 \times F_4 \, \hat j \times \dfrac{R}{2}[/tex]
Therefore;
[tex]M_1 =- 0.5 \times 2 \times F_2 \, \hat j \times \dfrac{R}{2} = \mathbf{ -F_2 \, \hat j \times \dfrac{R}{2}}[/tex]
Counterclockwise moment due to F₂ = [tex]-F_2 \, \hat j \times \dfrac{R}{2}[/tex]
Given that the clockwise moment due to F₄ = The counterclockwise moment due to F₂, we have;
Two forces that combine to exert zero net torque on the disk are;
F₂, and F₄
Which are the options; (B) F₂, and (D) F₄
Learn more about the resolution of vectors here:
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Please help me it is the number 19
Answer:
R = U^2 sin 2 θ / g
θ represents the degrees above the horizontal that the particle was fired
sin 2 θ is a maximum for θ = 45 deg
Then sin 2 θ = sin 90 = 1 the max value of R
A box sits at rest on a rough 33° inclined plane. Draw the free-body diagram, showing all the forces
acting on the box. (b) How would the diagram change if the box were sliding down the plane. (c) How
would it change if the box were sliding up the plane after an initial shove?
(a) The free body of all the forces include, frictional force, weight of the box acting perpendicular and another acting parallel to the plane.
(b) When the box is sliding down, the frictional force acts towards the right.
(c) When the box slides up, the direction of the frictional force changes, it acts towards the left.
Free body diagramThe free body diagram of all the forces on the box is obtained by noting the upward force and downward forces on the box as shown below;
/ W2
Ф → Ff
↓W1
where;
Ff is the frictional force resisting the down motion of the boxW1 is the perpendicular component of the box weight = Wcos(33)W2 is the parallel component of the box weight = Wsin(33)(b) When the box is sliding down, the frictional force acts towards the right.
(c) When the box slides up, the direction of the frictional force changes, it acts towards the left.
Learn more about free body diagram of inclined objects here: https://brainly.com/question/4176810
Along the horizontal section at the bottom of
a tall slide, a child slows to a stop.
This situation can best be described as a transformation of
Kinetic energy into Dissipated energy (eg, heat)
Potential energy into Kinetic energy
Kinetic energy into Chemical energy
Chemical energy into Dissipated energy (eg, heat)
Potential energy into Chemical energy
Answer:
Kinetic Energy to Dissipated energy
Explanation:
Kinetic Energy is Energy that is in motion and being used, Dissipated energy is energy that has been used up by whatever movement or motion was present.
How is the answer d??
Answer:
To keep from falling at the top;
M V^2 / R = M g
This can be rewritten
1/2 M V^2 = M g R /2
2 M g R = 1/2 M V^2 difference in KE between top and bottom
2 M g R + M g R / 2 = 5/2 M g R
Adding the minimum KE at the top to the KE gained when the potential energy of 2 M g R is converted to KE
An electron is constrained to the central perpendicular axis of a ring of charge of radius 2.7 m and charge 0.027 mC. Suppose the electron is released from rest a distance 0.035 m from the ring center. It then oscillates through the ring center. Calculate its period. (The electron is always much closer to the ring center than a radius.)
The period is mathematically given as
t=7.34*10^{-8}s
What is the period?
Question Parameters:
Charge of radius 2.7 m and charge 0.027 mC.
The electron is released from rest at a distance of 0.035 m from the ring center.
Generally, the equation for the angular velocity is mathematically given as
[tex]w^2=\frac{KQq}{R^3}[/tex]
Therefore
[tex]W^2=\frac{9*10^9*9.1*10^{-5}*1.6*10^{-19}}{2.7^3*9.1*10^{-31}}[/tex]
w^2=7.316*10^{15}
w=8.55*10^2
Therefore
[tex]2\pi/t=w\\\\2\pi/t=8.55*10^2[/tex]
t=7.34*10^{-8}s
In conclusion, The period is
t=7.34*10^{-8}s
Read more about Time
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can you explain why when the capacitor is
put into the circuit the ammeter shows 0
Amps
How does food affects carbon footprint?
Answer:
Food accounts for 10-30% of a household's carbon footprint, typically a higher portion in lower-income households. Production accounts for 68% of food emissions, while transportation accounts for 5%.
Explanation:
Answer: Food accounts for 10-30% of a household's carbon footprint, typically a higher portion in lower-income households.
Explanation:
13) How much mechanical energy does a swinging bowling ball have if it has 250J of kinetic energy and
800J of potential energy?
A)
B)
C)
A. ME = PE + KE
ME = mechanical energy
PE = potential energy
KE = kinetic energy
B. ME = 800 + 250
C. 1050 J
A body of mass 10 kg is being rotated in a circular path of
diameter 1.0 mm on a frictionless horizontal plane by means of
a string. It performs 10 revolutions in 3.14 s. Calculate the
centripetal force acting on it.
Answer:
The answer is 2N
Explanation:
Given;mass (m) = 10 kgDiameter (d) = 1 mmTo Find;The centripetal force acting on it.Now,
Radius (r) = Diameter ÷ 2
r = 1/2
r = 0.5 mm = 5 × 10‾⁴
T = 3.14 ÷ 10 = π/10 sec
∴ F = mrω² = mr (2π/T)² = 4π²mr/T²
F = 4 π² × 10 × 5 × 10‾⁴/(π/10)²
F = 4 π² × 10 × 5 × 10‾⁴ × 100/π²
F = 4 × 0.5
F = 2 N
Thus, The centripetal force acting on it is 2 Newton
-TheUnknownScientist 72
Explain how radiation takes place
Answer:
Heat transfer through radiation takes place in the form of electromagnetic waves, mainly in the infrared region. The radiation is emitted by some body as a consequence of the thermal agitation of its composing molecules.
Explanation:
The transfer of heat by radiation involves the carrying of energy from an origin to the space surrounding it. The energy is carried by electromagnetic waves and does not involve the movement or the interaction of matter.
Answer:
depressions of ozyan leyar
What element is an important part of forming polymers? Why?
Answer:
What element is most likely to form polymers?
Because they contain carbon, polymers are categorized as organic compounds. The most common element found in polymers, besides carbon, is hydrogen. Many polymers are manufactured from feedstock, or starting materials, obtained from petroleum.
can someone please answer this, Ill give you brainliest and your getting 100 points.
Explanation:
Take a look at South American and African plates.
Both have plates moving in opposite directions Soon they will go away and leave water in sideOption C is correct
The light we see from the sun comes from which layer?.
Answer:
The Photosphere
Explanation:
It's photosphere is the sun's area that lights . This layer is responsible for nearly all of the Sun's light.
Answer:
The photosphere
Explanation:
The light we see from the sun comes from the photosphere.
DUE TOWMOROW HELP
"When a grasshopper egg hatches, a baby grasshopper called a pupa comes out of the egg and begins to grow. Although the nymph grasshopper already looks like a grasshopper, it still needs to molt its exoskeleton many times before becoming a full-grown adult."
Which statement corrects the error in the passage?
Help plss
Answer:
a baby grasshopper is a nymph
Explanation:
hope this helps
Which of the following statements describe an object in equilibrium?
I. The object is at rest.
II. The object is moving at constant velocity.
III. The net external force on the object is zero.
Explanation:
Which of the following statements describe an object in equilibrium?
III. The net external force on the object is zero
I hope this helps
good morning to you all! can someone please answer this, ill give you brainliest and your earning 50 points.
Despite the risks, Human populations can be found near volcanoes. This can be associated with the availability of which natural resource?
Geothermal energyGeothermal energy is the form of energy obtained from the heat of the earth. Near volcanoes the land is more hot compared to the normal areas. So, the heat of the lava will help in producing Geothermal energy...~
Answer:
Geothermal energy
Explanation:
The volcanoes erupt the hot magma or lava This is the main source of geothermal energy.As energy is most important thing for survival so many humans establish community near volcanoesWith a damaged liver, which of the following is MOST likely?
e: carbon dioxide build up in the body
O toxin build up in the body
less oxygen in the body
fewer nutrients in the body