an 85 kg construction worker has 37,485 j of gravitational potential energy to the nearest whole number the worker is blank m above the ground. answer the blank = )

Answer:

combination

Explanation:

In the equation to make h20 they are both their; they combine to make h20 PLEASE AMRK BRAINLIEST I NEED IT ヾ(•ω•`)o

Diagram (c) represents the force between the two charges. Like charges repel, each other, and unlike charges repel each other.

The electric force between the two charges is directly propotional to the product of the charge and inversly propotional to the square of the distance between them.

The electric force is found as;

\(\rm F = \frac{K q_1q_2}{r^2}\)

Like charges repel, each other, and unlike charges repel each other. Both the charge is of the opposite sign they attract each other.

Hence diagram (c) represents the force between the two charges.

To learn more about the electric force refer to the link;

https://brainly.com/question/1076352

The phenomenon that demonstrates the particle nature of light is option (a) the photoelectric effect.

The photoelectric effect refers to the emission of electrons from a material when it is exposed to light. This effect cannot be explained solely by classical wave theory but requires the understanding of light as discrete packets of energy called photons.

According to the particle nature of light, each photon carries a specific amount of energy. When photons strike a material, they can transfer their energy to electrons in the material, causing them to be ejected and creating an electric current.

On the other hand, diffraction effects and interference effects, mentioned in options b and c, respectively, demonstrate the wave nature of light. These phenomena involve the bending and interference of light waves as they pass through or interact with different objects or obstacles.

Option d, the prediction by Maxwell's electromagnetic wave theory, is also associated with the wave nature of light. Maxwell's theory describes light as an electromagnetic wave and successfully explains various optical phenomena based on wave behavior.

Therefore, the correct answer is option (a) the photoelectric effect, which specifically demonstrates the particle nature of light.

To know more about the photoelectric effect refer here,

https://brainly.com/question/9260704#

#SPJ11

Answer:

0.28 m

Explanation:

The following data were obtained from the question:

Force (F) = 5×10¯⁶ N

Charge 1 (q₁) = 6.7×10¯⁹ C

Charge 2 (q₂) = 6.7×10¯⁹ C

Electrical constant (K) = 9×10⁹ Nm²C¯²

Distance apart (r) =?

Thus, the distance between the two charges can be obtained as follow:

F = Kq₁q₂/r²

5×10¯⁶ = 9×10⁹ × 6.7×10¯⁹ × 6.7×10¯⁹/r²

5×10¯⁶ = 4.0401×10¯⁷ / r²

Cross multiply

5×10¯⁶ × r² = 4.0401×10¯⁷

Divide both side by 5×10¯⁶

r² = 4.0401×10¯⁷ / 5×10¯⁶

Take the square root of both side

r = √(4.0401×10¯⁷ / 5×10¯⁶)

r = 0.28 m

Therefore, the distance between the two charges is 0.28 m

Answer:

Explanation:

Angle of refraction is the angle made by refracted ray with the normal at the point of incidence . In this figure , refracted ray has been shown by line having arrow-head . Normal has been shown by broken line .

We observe that in figure D , angle made by refracted ray with normal is greatest . So figure D is the answer.

The  image where the angle of refraction is the greatest is the image D

The angle of refraction is the angle that the refracted ray made with the x-axis.

The higher the angle between the refracted ray and the x-axis, the higher the angle of refraction and vice versa.

From the given diagram, we can see that the  image where the angle of refraction is the greatest is the image D

Learn more on angle of refraction here: https://brainly.com/question/15838784

The statement that best summarizes the information given is: The gravitational force exerted by Earth on the satellite depends on the satellite's mass.

The correct option is A.

Gravitational force is the force of attraction that exists between two objects.

Gravitational force is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance of separation.

Greater gravitational forces will be used to attract heavier things since the gravitational force is directly proportional to the mass of both interacting objects. Therefore, the gravitational attraction between two objects grows as their respective masses do as well.

Learn more about gravitational force at: https://brainly.com/question/24783651
#SPJ1

Explanation:

The kinetic energy is basically the energy possesses by virtue of a body's motion

1. The truck moving to the quarry

let the mass be x

and the velocity is given as 20m/s

we know that the kinetic energy is given as

KE=1/2mv^2

KE=1/2(x)*20^2

KE=1/2(x)400

KE=200x

2. The truck leaving to the quarry

let the mass be 2x

and the velocity is given as 20m/s

we know that the kinetic energy is given as

KE=1/2mv^2

KE=1/2(2x)*20^2

KE=1/2(2x)400

KE=400x

From the analysis the kinetic energy is a function of mass, doubling the mass doubles the kinetic energy

In Mitchell's diagram, unbalanced forces cause an object to move.

Kyson  is sitting and reading. The characteristics of all types of forces is: Forces act in pairs.

The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

A spring balance can be used to calculate the Force. The Newton is the SI unit of force.

For balanced force net force is zero and unbalanced force causes motion.

Learn more about force here:

https://brainly.com/question/13191643

#SPJ1

Answer:

it is being accountable basically like some one can relive and trust that you'll do what you say your going to do

R= 2+4=6Ω

in series connection, same current and different voltage

total voltage= total current × total resistance

6=I×6

I=6/6= 1A

voltage across 4Ω resistor= 1×4=4v

Therefore, heat dissipated by the 4Ω resistor in 5s= (v²/R)×t= (4²/4)× 5 = 16/4 × 5 = 20J

Answer:

101201.2 Pascal.

Explanation:

Given that the difference h between the two liquid levels is 2.0 cm. The density of the liquid is 800 kg /m3.

Calculate the difference between the pressure of the gas and atmospheric

pressure.

The pressure of the gas can be calculated by using the formula

Pressure = density × acceleration due to gravity × height

Substitute all the parameters into the formula

Pressure = 800 × 2/100 × 9.8

Note that the height is converted to metre.

Pressure = 156.8 Pascal

pressure difference = 101358 - 156.8

Pressure difference = 101201.2 Pascal

The bicycle will experience more force.

Force is the intensity by which an object is pushed or pulled.

Let the mass of the pedestrian = M kg

Let the mass of bicycle = m kg

Also M > m

The more the mass the more will be the force exerted on the opposite object.

Therefore the bicycle will experience more force when both of them collided in the street.

To know more about force,

https://brainly.com/question/28545289

#SPJ1

The "d" in "Scd" signifies a small bulge, while the "c" indicates a relatively loose and poorly defined spiral pattern.

In Hubble's classification system, the type of galaxy that has a small bulge and a loose, widely spread, and poorly defined spiral pattern is classified as a "Scd" galaxy.

Hubble's classification scheme categorizes galaxies into different types based on their visual appearance, particularly the structure of their spiral arms, the size of their central bulge, and the overall shape of the galaxy. The scheme ranges from elliptical galaxies (labeled E) to spiral galaxies (labeled S), with further subdivisions denoted by additional letters and numbers.

Within the spiral galaxy category, the classification progresses from tightly wound and well-defined spiral arms (Sa type) to intermediate spiral arms (Sb type) and finally to loosely wound and poorly defined spiral arms (Sc type). The "d" in "Scd" signifies a small bulge, while the "c" indicates a relatively loose and poorly defined spiral pattern.

Learn more about Hubble's classification system

brainly.com/question/29693174

#SPJ11

Answer:

B=14

Explanation:

2(14)-20=8

28-20=8

Answer:

Universal law is the set of natural, non-man-made, and immutable conditions that determine how reality and consequence operate within the realm that humans exist in.

Explanation:

Answer:

4.    0.12mm

5:

a. screw gauge

b. caliper

Answer:

0.11 mm

vernier calipers

im not sure about the sure about B

Explanation:

Answer:

110°C = 230°F

32°F = 0°C

Explanation:

(110*9/5)+32=230

(32-32)*5/9=0

Cutting speed, which is the distance a cutting tool travels in 1 minute, is measured in feet per minute (ft/min).

Cutting speed indicates how fast a metal is removed from the workpiece. Cutting feed focuses on how far the cutting spindle travels across the metal part during one full rotation of the tool.

According to this question, cutting speed is the distance that a point on the circumference of a rotating cutting tool travels in 1 minute.

The measurement of cutting speed is shown as feet per minute or meters per minute (ft/min or m/min) based on the cutting speed velocity.

Learn more about cutting speed at: https://brainly.com/question/29105531

#SPJ1

Answer:

respuesta d)

Explanation:

Answer:

b) 72 F°

Explanation:

In Fahrenheit, the difference between freezing and boiling is 180 F° (that’s 212 °F minus 32 °F). In Celsius, the difference is 100 C° (by definition of 0 °C and 100 °C for those two points). So 100 C° = 180 F°; dividing by 100 gives us 1 C° = 1.8 F°.

So a difference of 40 C° is equal to 40 times (1.8 F°) = 72 F°.

Notice I am using °F and °C for actual temperatures, and F° and C° for temperature DIFFERENCES.

If you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

This is because we add the velocity of the person to the velocity of the train to determine their combined velocity relative to the ground. If the person were to walk in the opposite direction of the train, their speed relative to the ground would be 59 km/h since we would subtract their velocity from that of the train. The same concept applies to any situation where two objects are moving relative to each other.

For example, let's say that two cars are driving in the same direction on a highway. Car A is driving at 70 km/h and Car B is driving at 90 km/h.

The relative velocity of Car A with respect to Car B would be 20 km/h (90 km/h - 70 km/h) while the relative velocity of Car B with respect to Car A would be -20 km/h (70 km/h - 90 km/h).

So therefore if you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

Learn more about speed relative at:

https://brainly.com/question/32038972

#SPJ11

Answer:I need the answer too

Explanation:

Answer:

The half-life of plutonium-238 is 87.7 years.

What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 years?

12.5

%

What percentage of the atoms in the same sample of plutonium-238 will have changed to a stable isotope after 263.1 years?

87.5

%

Explanation:

Answer:

neutrons have a negative charge is incorrect

Explanation:

neutrons are neutral

Answer:

Explanation:

Neutrons and protons are found in the nucleus of an atom. Unlike protons, which have a positive charge, or electrons, which have a negative charge, neutrons have zero charge which means they are neutral particles.

The angle between the velocity vector and acceleration vector at any given point in the orbit would be 90 degrees, therefore the correct answer is option A.

The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².

As given in the If a  satellite in orbit around Earth is in a uniform circular motion then we have to find the angle between the velocity vector and acceleration vector.

In a uniform circular motion, the angle between the velocity vector and acceleration vector is always π/2.

The angle between the velocity vector and acceleration vector at any given point in the orbit would be 90 degrees.

Thus, the correct answer is option A.

To learn more about acceleration from here, refer to the link ;

https://brainly.com/question/16768483

#SPJ2

The magnitude of the gravitational acceleration on this planet is 11.8 m/s²

How can the magnitude of the gravitational acceleration be determined?

On earth, gravity causes an acceleration of 9.8 m/s2.

G = GM/r2 is the formula used to calculate the acceleration caused by gravity.

The gravitational field on Earth has a strength of 9.8 or 10.

The Earth's gravitational field has a strength of 9.8 N/kg.

Accordingly, for every kg of mass, an object will experience 9.8 N of pressure.

If the gravitational field is weaker, the object has a lower weight.

Solving this for g:

g = (4p^2*L)/P^2.

I am assuming that the pendulum as a length of 49.0 m and that the pendulum completes 104 full swings in 133 s.

Since the pendulum completes 104 full swings in 133 s:

P = 133/104 s.

Then, given that L = 49.0 m:

g = (4p^2*L)/P^2

= [4p^2*(49.0 m)]/(133/104 s)^2

= 1.18 x 10^3 m/s^2.

This value of g seems rather large. Did you happen to have 49.0 cm = 0.49 m? If so, then:

g = (4p^2*L)/P^2

= [4p^2*(0.49 m)]/(133/104 s)^2

= 11.8 m/s^2.

To know more about gravitational acceleration visit:

brainly.com/question/13769294

#SPJ4

Answer:

2/B

6/E

7/F

12/6

Explanation:

Hope this helps i dont know ither i will put if i think of them

The speed of the wind from the east with 3.7 m/s is pushing the paper airplane that flies with a velocity of 1.5 m/s north. Then the resultant velocity of the plane is 3.9 m/s.

Velocity is a physical quantity measuring the distance travelled by an object per unit time. It is a vector quantity thus characterized by a magnitude and direction.

The velocity of an object moving north relative to wind towards east can be expressed as a resultant velocity or relative velocity of the former as:

v = √v1² + v2²

Given v1 = 1.5 m/s

v2 = 3.7 m/s

then v = √1.5² + 3.7² = 3.9 m/s

Therefore, the total velocity of the paper airplane is 3.9 m/s.

Find more on velocity :

https://brainly.com/question/17127206

#SPJ9

The coefficient of the kinetic friction is the ratio of the friction force experienced to the normal force acting on the body.

When the girl encounters an area where the floor has been waxed, making it slippery, the friction force in that area reduces, which causes a decrease in the coefficient of kinetic friction.

Therefore, option (a); the coefficient of kinetic friction decreases, is the correct choice.

Answer:

  96 m

Explanation:

The average velocity over those 4 seconds is the velocity after 2 seconds:

  30 m/s -(2 s)(3.0 m/s^2) = 24 m/s

The displacement is the product of this average velocity and the duration of the acceleration:

  d = (24 m/s)(4 s) = 96 m

The boat covered 96 m while being accelerated.