Physics High School


From the frame of reference of car 2, what is the velocity of car

From The Frame Of Reference Of Car 2, What Is The Velocity Of Car

Answers

Answer 1
It’s is the last one d

Related Questions

The Earth’s ________________ on its ________ causes day and night.

Answers

Answer:

1. rotation. 2. axis

Explanation:

The Earths rotation on its axis causes day and night

When a racer gets thrown out of a race they gets this?

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What do you mean sorry confused

Answer:

A black flag

Explanation:

PLEASE HELP IT IS URGENT! NET FORCE

Answers

C is the answer because you subtract 20-18

The North American Plate moves at 2.5 cm per year. How many mm does it move in 1 year? Millimeters per day?

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If the North American plate moves 2.5 cm in a year it would convert to 25 mm. To find how many mm it moves in year you would divide 25 by 365. You would get 0.06849315068.


I really hope this is correct :)

action reaction forces are in which one of newtons laws

Answers

Answer:

the third law

Explanation:

could u vote me brainliest plz? thx :)

why displacement has a fixed direction and change in position​

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The position of an object is where it sits on the number line. When the object moves to another position, its displacement is the second position minus the first position.

Δ x = x2 − x1

The word displacement implies we keep track of which way the movement occurs. In one dimension the direction is indicated by the sign: negative if to the left and positive if to the right. The word distance means how far the object moves regardless of direction. It is always positive and is equal to the absolute value, or magnitude, of the displacement.

If one follows the rule of always subtracting the first position from the second, the sign always works out to be positive if the displacement is to the right and negative if the displacement is to the left.

A delivery drone uniformly slowed down from 45 m/s to 23 m/s in a straight line over a 30-minute duration within a 16-kilometer radius of its warehouse. What was the magnitude of its average acceleration?
A. 1.2 x 10^−2 m/s^2
B. 5.3 x 10^−1 m/s^2
C. 7.3 x 10^−1m/s^2
D. 4.4 x 10^1 m/s^2

Answers

I think it is letter A

URGENT WILL GIVE BRAINLIEST TO BEST ANSWER
In a windy day,
(pick one)
high and low pressure are the same
low pressure is greater than high
air temperature is greater than the air pressure
high pressure is greater than low pressure
high pressure is less than low pressure
low pressure is less than high pressure

Answers

Answer:

D, high pressure is less than low pressure low pressure is less than high pressure

Explanation:

Answer:

a

Explanation:

what element has 3 protons and 4 electrons?

Answers

Answer:

Li⁻

Explanation:

# of protons = # element on the Periodic Table.

# of protons (+) + # of electrons (-) = overall charge

3 protons is the 3rd element on the Periodic Table: Lithium

All elements on the Periodic Table have a neutral charge. Lithium neutral has 3 protons and 3 electrons.

We are given 4 electrons; 3 + -4 = -1 charge overall.

Therefore, our ion is Li⁻

An ice skater weighs 500 [N]. He is coasting to the right at a constant velocity of 2 [m/s]. Assume
the ice is frictionless.
What is the net force on the skater?

Answers

Answer:

The net force on the skater is zero. ([tex]F_{net} = 0\,N[/tex])

Explanation:

According to Newton's First Law, an object is at equilibrium when either it is at rest or moves at constant velocity, which means a net force of zero. Based on the given statement, there are no external forces acting on skate and, therefore, the net force on the skater is zero. ([tex]F_{net} = 0\,N[/tex])

I took a picture of my problem.

Answers

I’m pretty sure it’s C

Which describes an object in projectile motion?

A. Gravity acts to push the object sideways.
B. The object moves in a straight path.
C. The forward velocity of the object is 0 m/s.
D. The object’s inertia carries it forward.

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D the objects inertia carries it forward
your answer is D the object carries it forward

All atoms want to be like which group of atoms?

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I believe it is the noble gasses

1300 J of work are done when a rock is pushed 40 m. How much force was used? ​

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Explanation:

Work=ForcexDisplacement

Force= Work/Displacement

= 1300/40

= 32.5 N

Help please and explain elaborately thanks in advanced

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Answer:

So overall, motion and interference of matter are needed equally for friction, which is held together by the force of gravity. Without gravity, everything would have fly away in the universe, and the friction would not have exist. Hence, friction is dependent on gravity.

Elaborately means in a detailed and carefully arranged manner.

Explanation:

hope this helps!!!!

1) Calculate the speed of a runner who runs 100 m in 20s

Answers

This is how you calculate his speed, for the 100metres. That is, the average speed for the entire distance, including the start from intertia until the race end where the athlete is decelerating. Multiply the time by 10, and divide 3600 by that figure. i.e. 10 by10 equals 100. Divide 3600 by 100 and you get 36 which is the speed figure you requested.

A female athlete ran 200 metres a few years ago and in the middle section of the race covered 100 metres in that race in a time under 10 seconds. That is, she ran a sub 10second 100metres from a flying start. This great athlete from Slovenia, also ran a 100 metre race (from a stationary start) in a time under 11 seconds, when she was 48 years of age. Her name is Merlene Ottey.

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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please help! newton's laws. please give a legit answer

Answers

Answer:

yuhhh

Explanation:

get into it

why is epidermis important for plants​

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Answer:

Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

hope this helps

What are the two parts of an atom?

the nucleus and the proton cloud
the neutron and the electron cloud
the neutron and the proton cloud
the nucleus and the electron cloudWhen an atom that has no charge loses two electrons, it becomes a

positive ion.
negative ion.
positive isotope.
negative isotope.

Answers

Answer:

The two main components of an atom are the nucleus and the cloud of electrons

postive ion

Explanation:

your welcome !!

postive ion explation - When an atom that has no charge loses two electrons, it becomes a positive ion. negative ion. positive isotope. negative isotope When an atom that has no charge loses two electrons, it becomes a positive ion.

a 0.006kg bullet is fired at 350 m/s into a container that stops it at .30 m. what is the average force stopping the bullet?

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Answer:

is this a mudder question

why would hydras avoid reproducing asexually when condition are difficult?

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Answer:

I'm soooooooo happy you asked the answer is yes

Melanie and Lance gathered data about the effectiveness of masks
preventing disease. One of the questions they ask the experimental
subjects is their age. What type of observation is this? *

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When she gathers the effectiveness of mask prevention the disease of mask that is when she has to experiment on whether it’s effective or not! Hope this helps!

Which circuit is a series circuit

Answers

Answer:

The answer is A

Explanation:

Answer:

it is A)

Explanation:

it has multiple circuits.

What is the magnitude of force required to accelerate a car of mass
1.7 × 103 kilograms by 4.75 meters/second2?

Answers

Answer:

The answer is 8075 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

mass = 1.7 × 10³ kg = 1700 kg

acceleration = 4.75 m/s²

We have

force = 1700 × 4.75

We have the final answer as

8075 N

Hope this helps you

What are the Differences between ancient and modern astronomy?

Answers

Answer:

ancient astronomy is back in the 1600s and is really old and modern astronomy is present and astronomy today

Time period and technology are the main differences between ancient and modern astronomy.

The main differences between ancient and modern astronomy is the era in which they were created and developed. The ancient astronomy developed by Greeks and technology for study is very old. The first documented records of systematic astronomical observations occurs in Assyro-Babylonians around 1000 BCE.

While on the other hand, modern astronomy refers to the astronomy that is developed in this modern period and use advance technology. Modern astronomy includes many elements of the motions as well as characteristics of moving bodies so we can conclude that time period and technology are the main differences between ancient and modern astronomy.

Learn more: https://brainly.com/question/18659457

A wave has a frequency of 3 Hz, how long is the period?

A 9

B 6

C 3

D .33

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Answer D

Explanation I did the quiz

How much does a bowling ball weigh if it has a mass of 6 kg on Earth?

Answers

Answer: pretty sure 14 pounds

Explanation:

WILL REWARD brief history of nuclear power. inventors and or who discovered nuclear power and when it was first used.

Answers

Answer:

1951 an experimental nuclear reactor in Arco, Idaho, produces enough electricity to power for light bulbs...... 1954 the atomic energy act authorizes development of nuclear energy for a civilian use.1957 first commercial nuclear-powered Generating Station is built in the shippingport,Pa.

Explanation:

● Enrico Fermi was the one who discovered nuclear power.

● nuclear power was first used

[ December 20, 1951]

The question is 6 please help

Answers

Answer:

none of the answers are correct

Explanation:

Lithium = 3

Berillium = 4

Boron = 5

Carbon = 6

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