Answer:
No work is done since no distance is given
Explanation:
Since no distance is given, the force is not doing any work
No work is done by the man since we do not know the distance or displacement.
Work is only said to be done when the force applied on an object moves it through a particular distance.
Work done = Force x distance.
Since no distance is given in this problem, we can as well assume that the force applied is doing no work on the object.
Hi, does anyone know what this last drop down menu would be? Thank you!
How much work is done on a small car if a 3150 N force is exerted to move it 75.5 m to the side of the road?
Answer:
237,825 J
Explanation:
Una bombilla de incandescencia tiene un filamento de wolframio cuya resistividad es de 5,6 por 10 a la -8 m , su longitud es de 200 cm y su sección es de 8,0 por 10 a la -7 malcuadrado ¿resistencia?
Answer:
R = 0.14 Ω
Explanation:
The resistance of a metal is given by the relation
R = [tex]\rho \frac{L}{A}[/tex]
where ρ the resistivity is 5.6 10-8 Ω m, they also give the length and the cross section (area)
Let's reduce the magnitudes to the SI system
L = 200cm (1m / 100cm) = 2.00m
A = 8.0 10⁻⁷ m²
let's calculate
R = 5.6 10⁻⁸ [tex]\frac{2.00}{8.0 \ 10^{-7} }[/tex]
R = 1.4 10⁻¹ Ω
R = 0.14 Ω
mention effects of heat
Answer:
See explanation
Explanation:
Heat is defined as a form of energy due to temperature difference. Heat is also a measure of the total internal energy of a body.
Heat has the following effects;
1) Heat causes change of state of a body
2) Heat changes the temperature of a body
3) Heat causes expansion of a body
4) Heat may alter certain physical properties of a body such as electrical conductivity, density etc
5) Heat causes a change in the pressure and volume of a body
6) Heat may lead to the emission of electrons from metals(thermionic emission)
What is the current if 3600 C of charge passes a point in 15 min.
Answer
A)6.5A
B)3.5A
C)4A
D)1A
What is the velocity of a dog who travels south 50 meters in 9 seconds
According to Einstein's theory of relativity, what happens to the mass of an object as the object approaches the
speed of light?
A. The mass of the object decreases.
B. The mass of the object increases.
C. The mass of the object remains the same.
Answer:
B
Explanation:
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What happens to Roberto’s kinetic energy when he runs twice as fast?
What work will you do in the future and why?
Answer:
I wants to be a successful person because is wants to stay happy life and I don't wants
If the acceleration is 600m/s/s and the mass is 300kg, calculate the for the force
Answer:
180000N
Explanation:
Given parameters:
Acceleration = 600m/s²
Mass = 300kg
Unknown:
Force = ?
Solution:
From Newton's second law of motion;
Force = mass x acceleration
Force = 300 x 600 = 180000N
Plz help me
A negative charge of-3.0Cand a lositive charge of 3.0 Care separated by 1m, What is the force between the two
charges?
A negative charge of -0,5 Cexerts a repelling force of 10.0 N on a second charge that is 0.5m away. What is the sign
and magnitude of the second charge?
R21
Answer:
sign of the other charge is -ve
Hello I need help with
9.3 Density calculations
ASAP
Answer:
sorry for the late.... if u have queries comment me
Can Vehicles us bike lanes when they are empty?
Fill in the blank: A _____________ circuit has multiple paths for a charge to follow to and from the power source.
Answer:
A parallel circuit
Explanation:
there you go
hope that helps
thanx
Answer:
parallel circuit
Explanation:
9. A van travels at a speed of 40.0 m/s has a mass of 600kg. What is the van’s kinetic energy? *
[tex]ke = \frac{1}{2} m{v}^{2} \\ = \frac{1}{2} (600)( {40}^{2} ) \\ = 300 \times 800 = 240000 = 240kjoule[/tex]
A horizontal force of 0.9N act on a body of mass 0.1kg there is resistance of 0.15 Newton opposing the first Force what acceleration will be produced please help
Answer:
a = 7.5 [m/s²]
Explanation:
To solve this type of problem we must remember Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.
∑F = m*a
where:
∑F = sum of forces [N]
m = mass = 0.1 [kg]
a = acceleration [m/s²]
Now replacing:
[tex]0.9-0.15=0.1*a\\a=7.5 [m/s^{2} ][/tex]
DESPERATE WILL GIVE BRAINLIST AND THANKS
what is a small section of DNA that codes for protection?
Answer:
Exons
Explanation:
The sections of DNA (or RNA) that code for proteins are called exons
When a student combed his dry hair for a long time, his hair began to stand up. Which of these has MOST LIKELY happened
Answer:
brainliest please
Explanation:
The answer would be static electricity
A force of 2.0 × 102 newtons is applied to a lever to lift a crate. If the mechanical advantage of the lever is 3.43, what is the weight of the crate? A. 2.0 × 102 newtons B. 58 newtons C. 6.9 × 102 newtons D. 7.1 × 102 newtons
Answer:
C. [tex]6.9\times 10^2\ \text{N}[/tex]
Explanation:
[tex]\text{Supplied force}=2\times 10^2\ \text{N}[/tex]
M = Mechanical advantage = 3.43
Mechanical advantage is given by
[tex]M=\dfrac{\text{Weigh of crate}}{\text{Supplied force}}\\\Rightarrow \text{Weigh of crate}=M\times \text{Supplied force}\\\Rightarrow \text{Weigh of crate}=3.43\times 2\times 10^{2}\\\Rightarrow \text{Weigh of crate}=6.86\times 10^2\ \text{N}\approx 6.9\times 10^2\ \text{N}[/tex]
The weight of the crate is [tex]6.9\times 10^2\ \text{N}[/tex].
A 10 kilogram radio controlled airplane at 1000 meters has 100,000
joules of potential energy, and moving at 10 meters per second it has 500
joules of kinetic energy. How much mechanical energy does the radio
controlled airplane have? Include units in your answer but no decimal
point or digits to the right of the decimal point. *
Answer:
The mechanical energy of the airplane is 100,500 joules
Explanation:
The given parameters are;
The mass of the airplane = 10 kg
The height at which the airplane is located = 1000 meters
The potential energy of the airplane, P.E. = 100,000 joules
The speed of the airplane = 10 m/s
The kinetic energy of the airplane, K.E. = 500 joules
The Mechanical Energy, M.E. = The Potential Energy, P.E. + The Kinetic Energy, K.E.
M.E. = P.E. + K.E.
∴ M.E. = 100,000 joules + 500 joules = 100,500 joules
The mechanical energy of the airplane, M.E. = 100,500 joules.
What is the mass of a person running at 2.5 m/s with momentum of
200 kg m/S
Answer:
m = 80 kg
Explanation:
p = m × v
200 = m × 2.5
2.5m = 200
m = 200/2.5
m = 80 kg
What other kind of simple machine is a special kind of lever?
saitama is the strongest
If a ball is thrown alt 96 m/s, and it travels 3 seconds, what is the total distance the ball travelec
Answer: 288 m
Explanation: 288 m is the correct answer because the question states that the ball is thrown at 96 m every second, and our question tells us that the ball travels 3 seconds. This means we have to multiply 96 x 3 = 288 m.
Answer:
288
Explanation:
A piece of glass’ mass is 10g and it’s displaced volume when submerged is 4 mL. What is its density and what type of glass is it?
Answer:
Explanation:
Try using Density calculator I think it will work
Because of the dangers associated with the open neutral (grounded conductor), NEC 300.13(B) does not permit the continuity of the ____ conductor to depend on a receptacle.
Answer:
Grounded ( neutral)
Explanation:
In electrical works there are usually safety measures which needs to be specially adhered to.
We have to take into perspective the dangers associated with the open neutral (grounded conductor) which is the main treason why NEC 300.13(B) does not permit the continuity of the grounded(neutral) conductor to depend on a receptacle.
Magma presses against limestone creating pressure. Over time it turns into marble. What am I?
Metamorphic
Igneous
Sedimentary
Answer:
Metamorphic
Explanation:
Metamorphic rocks form when rocks are subjected to high heat and high PRESSURE.
A crane lifts a 1000 newton pallet 30 meters. How much work does the
crane do on the pallet? Include units in your answer but no decimal point
or digits to the right of the decimal point. *
Answer:
Workdone = 3000Nm
Explanation:
Given the following data;
Force, F = 1000 N
Distance, d = 30 m
We know that workdone is given by the formula;
Workdone = force * distance
Substituting into the equation, we have;
Workdone = 1000 * 30
Workdone = 3000Nm
Which Energy is missing in the windmill energy transformation?
Wind> _________> Electrical
1.Solar
2.Light
3.Mechanical
4.Sound
Answer:
3.mechanical is the answer
Mechanical energy is missing in the windmill energy transformation.
Wind> Mechanical> Electrical. Hence option (3) is correct.
What is Wind energy?The process of using the wind to produce mechanical or electrical energy is known as wind power or wind energy. The kinetic energy of the wind is transformed into mechanical power by wind turbines. This mechanical energy can be used to particular activities (such pumping water or grinding grain) or can be transformed into electricity by a generator.
When the project size is created to match the energy requirements of the load while simultaneously monetizing economies of scale and equipment track record, wind turbine economics are maximized. A modest turbine (usually less than 10 kW) that can produce the amount of electricity needed by a residence for daily operation is needed for residential onsite energy consumption.
Learn more about wind power here:
https://brainly.com/question/13266865
#SPJ2
HELP PLEASE!!! 20 POINTS!!
In the formulas for latent heat of fusion and latent heat of vaporization, what does Q represent?
the amount of heat released or absorbed by a substance
the mass of a substance
the amount of a substance that changes state
the temperature of a substance
Answer:
The amount of heat absorbed or released by a substance.
[tex]Q = ml _{v} \\ or \\Q = ml _{f}[/tex]
Answer:
The amount of heat released or absorbed by a substance.
Explanation:
The middle-C hammer of a piano hits two strings, producing beats of 1.60 Hz. One of the strings is turned to 250.00 Hz. What frequencies (in Hz) could the other string have? (Answer to the nearest 0.1 Hz.)
Answer:
248.5Hz or 251.5Hz
Explanation:
Given :
Beat frequency, Fbeat = 1.5 Hz
Frequency of string 1, f1 = 250 Hz
Frequency of string 2, f2 =?
Recall:
Fbeat = |f1 - f2|
1.5 = 250 - f2
f2 = 250 - 1.5
f2 = 248.5 Hz
OR
- Fbeat = |f1 - f2|
- 1.5 = 250 - f2
f2 = 250 + 1.5
f2 = 251.5 Hz
Hence, the two possible frequencies of the other string are 248.5Hz or 251.5Hz
