1. Newton's 1st Law: A skydiver opened their parachute and now experiences a force of gravity of -450 N (down) and a force of air resistance of +450N (up).

a) What is the net force (sum) acting on the skydiver?

Answer:

Answers

Answer 1
Net force is zero, so skydiver continues to fall at a constant velocity (called terminal velocity)

Related Questions

I need help ASAP this is due tomorrow at 8 AM its four questions and I don't understand none of them please help!!

1. Draw a series circuit with a 2-cell battery, 2 motors and an open switch.

2. Draw a parallel circuit with a 3-cell battery, 4 lamps and 1 closed switch that turns off all lamps.

3. Draw a circuit with a 3-cell battery, 2 motors (one motor on and one off).

4. Draw a circuit with a 2-cell battery, 2 lamps, 1 closed switch (wire it so if one lamp burns out, both lamps will not work).

Answers

Answer:

Is it a test

Explanation:

What voltage produces a current of 100 amps with a resistance of 50 ohms?

Answers

Answer:

To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)

To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω)

To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps)

To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)

Explanation:

good price

Answer:

what is it

Explanation:

Katrina’s recipe for orange muffins calls for 400 grams of flour. How many kilograms of flour are in the recipe?

Answers

Answer:

0.4 Kilograms of flour

Explanation:

If you convert 400 grams into kilograms (400 ÷ 1,000), you would get 0.4 kilograms.

What unit is force always in?
Pounds
Kilograms
Meters
Newtons

Answers

The answer would be newtons.

Which is a characteristic of atoms?

They come in ten major types.
They are the smallest units of matter.
They can be divided.
They cannot combine together.

Answers

Atoms consist of three basic particles ptotons electrons and neutrons.

Answer:

the answer is b

Explanation:

We act out our forbidden fantasies in our dreams.
a. True
b. False

Answers

Yes that’s true we do act out our forbidden fantasies in our dreams.

Samuel's car has a mass of 3,000 kg. If your car produces a force of 500 N, how fast will it accelerate?​

Answers

Answer:

The answer is 0.17 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex] a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{500}{3000} = \frac{5}{30 } = \frac{1}{6} \\ = 0.166666...[/tex]

We have the final answer as

0.17 m/s²

Hope this helps you

What is the displacement of a soccer player who moves from 20 yards to 65 yards down the field?

Answers

Answer:

All that is necessary is that car A has a greater speed (is moving faster). ... A fullback is running down the football field in a straight line. ... At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3 seconds, he is on ... Since average velocity is displacement over time, his average velocity is also 0 m/s.

Explanation:

Answer:

45 yards of displacement from the 20 yard point

Explanation:

take the 65 and subtract 20 from it and that will give you your displacement.

Someone help please.....
A person jogs 4.0 km in 32 minutes, then 2.0 km in 22 minutes, and finally 1.0 km in 16 minutes. What is the jogger's average speed in km per minute?​

Answers

Answer:

0.0928km/min (4dp)

Explanation:

To find the jogger's speed in km per minute, we just need to divide the number of km jogged by the time in minutes it took to jog that distance. This will give us the distance they jogged every minute which is their speed.

4km in 32 minutes:

4/32 = 0.125km/min

2km in 22 minutes:

2/22 = 0.091 (3dp)km/min

1km in 16 minutes:

0.0625km/min

Now to find the average speed of these 3 speeds, we just add them all together and divide by how many values there are (3 values).

Average (mean)  = [tex]\frac{0.125+0.091+0.0625}{3}[/tex]

Average = 0.2785/3

Average speed of jogger = 0.0928 (4dp) km/min

Hope this helped!

An object launched at 65 degrees from the horizontal would have the same range
(distance travelled) as an object launched from? Write only the WHOLE number with
no units (example: 65)

Answers

Answer:

An object launched from 65° will have the same range as an object launched from 25°

Explanation:

The formula for the horizontal range, R, is given as follows;

[tex]R = \dfrac{v \times sin(2\cdot \theta)}{g}[/tex]

Therefore, given that sinθ increases from 0 to 1 for θ values from 0 to 90° and decreases from 1 to 0 for θ values from 90° to 180°, and that the values of sin(θ) are positive in the first and second quadrant, we have that for the given angle, θ = 65°, the range is therefore;

[tex]R = \dfrac{v \times sin(2\times 65 ^{\circ})}{g} = \dfrac{v \times sin(130 ^{\circ})}{g}[/tex]

The location of 130° = Second quadrant

A rotation of 130° in the counterclockwise is equivalent to a rotation of 50° in the clockwise direction

Therefore, we have sin(130°) = sin(50°)

Therefore, the range for 130°/2 = 65° is the same as the range for 50°/2 = 25° and an object launched from 65° will have the same range as an object launched from 25°.

QUICK QUESTION: What forces are acting upon a flying baseball when someone throws it?

Answers

Air friction gravity and yeayayayayayya

Answer:

weight, drag, and lift

Explanation:

nasa

A tennis ball, 0.384 kg, is accelerated at a rate of 187 m/s2 when hit by a professional tennis player. What force does the player's tennis racket exert on the ball?

Answers

Answer:

The answer is 71.81 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 0.384 × 187 = 71.808

We have the final answer as

71.81 N

Hope this helps you

A car accelerates from 15 m/s to 25 m/s for 6 seconds. What is the car's displacement? (use: d=>(); + v) ) ​

Answers

Answer:

hope this helps  : )

Explanation:

brainliest plz

What collides and creates a movement of heat called conduction?

A. photons

B. compounds

C. Molecules

D. atoms

Answers

Answer:

c.

Explanation:

Molecules collide and create a movement of heat called conduction.

What is conduction?

Conduction is defined as a process  as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to  a body which is cold.

In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules  while in liquids and gases it is due to the random motion of the molecules ,

When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state  conduction 2) transient conduction.According to the type of energy conduction is of three types:

1) heat conduction

2) electrical conduction

3)sound conduction

Learn more about conduction,here:

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which statements describes a chemical property

Answers

Answer:

a chemical property can be observed without changing the identity of the substance.

Explanation:

a physical property is a characteristic that can be observed without changing the substance into another substance. The object reacts with acid to form water.

When a gas increase in thermal energy it will go through...?
A. thermal contraction
B. thermal expansion
C. freeze
D. smell​

Answers

Answer:

b

Explanation:

What does hydrosphere and cryosphere both have in common?

Answers

Answer:

cryosphere is all those areas of earth where the surface is frozen while hydrosphere is all waters of earth, as distinguished from the land and the gasses of the atmosphere

BMW has introduced a program of covered scheduled maintenance for its cars. That is, when you bring in your vehicle for maintenance at a BMW dealership, BMW will cover the costs of everything (except for worn-out tires). This practice specifically targets which stage of the product life cycle?

Answers

Answer:

Usage

Explanation:

A product life cycle refers to the duration from the introduction of the product into the market until it's taken off the shelves.

A program of covered scheduled maintenance for the cars refers to the practice in which the dealership will cover the costs of everything when you bring in your vehicle for maintenance.

In this question, the mentioned practice specifically targets the stage - Usage of the product life cycle

Why does the earth orbit the sun instead of the moon? *

Answers

Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

what is science and examples with it​

Answers

Answer:

science is the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Explanation:

A ball is thrown up in the air for 1 second and has a displacement of 5 m.
Assume the ball is under the influence of gravity. a = -10 m/s. Determine the
initial velocity of the ball.
d=yt+at

Answers

The ball drop 2kms in the air

List the 4 things technology can be.

Answers

Technology can be the four things listed below...

PhonesComputersTVsPlaystation or Xbox

Answer:

mechanical

electronic

medical

industrail and manufacturing

A water-balloon launcher with a mass of 2.2 kg is suspended on a wire. It
fires a 0.85 kg balloon to the north at a velocity of 13.0 m/s. What is the
resulting velocity of the launcher if the net force on the launcher is equal to
the reaction force?
A. 5.0 m/s south
B. 33.6 m/s south
C. 5.5 m/s north
D. 6.3 m/s south

Answers

Answer:

5.0 m/s south.

Just did it.

Hope This Helps!

Answer:

5.0 m/s south

Explanation:

non-example of Newton's third law of motion

Answers

Answer:

Unbalanced forces

Explanation:

what is induced current​

Answers

Answer:

tu sala chutiya hai madarchod harami

fill in the line to complete each statement

Joints in train tracks are designed with extra space to allow for _____
In hot weather

Answers

Answer:

expansion

Explanation:

all metals are conductors of heat and this heat can wear down the tracks as trains go by. this extra spacing allows the tracks to expand and contract so that the tracks do not wear down

A helicopter takes off from the ground and rises vertically. It then hovers at a constant height above the ground. Which sequence of energy changes takes place during the gain in height?

Answers

Answer:

First the fuel in the engine gives chemical energy during burning. That chemical energy then converts to kinetic energy if the rotor of blades of the helicopter. Then kinetic energy converts in gravitational potential energy as it gains height.

Joe follows the procedure below to make a compass. 1. Move a magnet from the top of a needle to its point fifty times. 2. Lay the needle on a cork that is floating in a bowl of water. 3. Observe the direction that the needle points. What is the purpose of step 1? to give the needle an electric charge to make the needle sharper to magnetize the needle to flatten the side of the needle

Answers

Answer:

C) To magnetize the needle

Explanation: I took the test!

When a magnet is moved away or towards a needle, current is bound to flow through the needle. The answer is  to give the needle an electric charge.

What is a Magnet?

A magentic is a material that has megnetic properties, it can also be defined as any material that attracts metals to itself.

A major uitlity of a magnet is found in the generator using the principle of electro-magnetic induction to generate electric current.

Learn more about magnet here:

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Use the drop-down menus to complete the statements.
The of light is the rate at which light travels through empty space, or about 300,000 km per second.
A light-year is a measurement of .
The distance between stars is measured in light-years rather than in miles or kilometers because the distance between stars .

Answers

Answer:

speed

distance

is very large

Explanation:

a. speed, distance , very large

What is a light year?

Light-year is the distance light travels in one year. Light zips through interstellar space at 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.

The speed of light measures the space traveled by electromagnetic waves every second.

In a vacuum, electromagnetic waves propagate at a constant velocity of approximately 299,792,458 meters per second.

In other words we can state that the speed of light refers to the rate that light travels through empty space.

Light-year is a unit of measurement used to calculate distances in astronomical space, i.e. where planets, stars, comets and so on are found.

The distances between the stars are huge, so to measure the immense dimensions of the universe requires the application of a special unit of measurement: the light year.

Because of this gigantic distance, the distance between the stars is measured in light years.

The complete question is given below:

Use the drop-down menus to complete the statements.

The ____ of light is the rate at which light travels through empty space, or about 300,000 km per second.

A light-year is a measurement of ____ .

The distance between stars is measured in light-years rather than in miles or kilometers because the distance between stars _____ .

Learn more about light year here:https://brainly.com/question/1302132

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A physics student drops a water balloon from an upstairs window. The window is 26.45 m
from the ground. How long does it take for the balloon to hit the ground? (Round to the
nearest tenth)

Answers

Answer:

Explanation:

Given:

Distance S = 26.45m

Using the equation of motion

S = ut+1/2gt²

26.45 = 0+1/2(9.81)t²

26.45 = 4.905t²

t² = 26.45/4.905

t² = 5.392

t = 2.528s

Hence the it took the balloon 2.52s to reach the ground

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