A rock is dropped from a cliff that is 45 m high. How long does it take to hit the ground?​

Answers

Answer 1

Answer:

It will take 6 seconds.

Explanation:


Related Questions

As an object is heated, the amount of energy radiated at all wavelengths increases,
but the wavelength of maximum emission
m
is shifted to longer wavelengths
is shifted to shorter wavelengths
O remains constant
none of these answers are correct

Answers

: I'm sorry it won't let me exit so

125.5 micrograms = ____ kilograms

Answers

it’s 1.255 i believe ! good luck ahah
The previous answer is wrong the correct answer is .00000013 kilograms (may I please receive brainliest)

Greg, Matt, and Stephen work together to hold the door shut to keep out the zombies. Greg pushes
with a force of 15 N, Matt with 12 N, and Stephen with 22 N. What is their net force on the door?

Answers

add them 15+12+22= .... N

6. In the reaction C+02 → C02, 18 g of carbon react with oxygen to produce 72 g of carbon
dioxide. What mass of oxygen would be needed in the reaction?
O 18 g
54 g
072 g
90 g

Answers

Answer:

I think ur answer might be 54 g

As 72-18=54

Hope this helps....

How fast was the storm that hit Galveston and how men died?​

Answers

Answer:

The storm was a category 4 hurricane that struck Galveston, Texas, on September 8, 1900, bringing winds of 130 miles (210 km) per hour and high tides that overwhelmed the low-lying coastal city, demolishing buildings and claiming more than 8,000 lives.

00p- now I can actually answer :)

Hope that I helped you a little :0

A plane is traveling North at 80km/hr into a 20 km/hr headwind (South). What is the plane's resultant velocity?

Answers

Answer:

Consider our plane flying at a speed of 80 km/hr into a 40 km/hr crosswind. Its speed, relative to the ground, can be calculated by adding the two vectors as shown on the right. What happens to the speed of the plane as the crosswind increases in magnitude? Look at the animation on the right. It is obvious that the speed of the plane, relative to the ground, increases in magnitude.

Explanation:

Answer:

60km/hr

Explanation:

R=80 - 20

=60km/hr, north

What is the correct definition of an element?

Answers

“An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.”
i just looked this up lol, but hope this helps! :)

I NEED HELP!! PLEASE ANSWER WITHIN 30MIN.. THANK YOU
Another way to represent a substance is with a picture. What information does the picture provide about carbon dioxide?

Answers

Answer:

The picture gives information about how many kinds of atoms are in carbon dioxide and how they are connected.

Explanation:

This was the answer to my test on Plato. I hope this helps :)

Answer:

The picture gives information about how many kinds of atoms are in carbon dioxide and how they are connected.

Explanation:

Give at least three examples of energy and explain why they have energy.

Answers

Answer:

plants because of photosynthesis humans because of food and the energy causing cells in it and batteries or solar panels because of the sun.

Explanation:

(01.06 LC)
Which factor can decrease the kinetic energy of an object?
Decrease in volume
Decrease in speed
Increase in temperature
Increase in speed
Previous

Answers

(01.06 LC)
Which factor can decrease the kinetic energy of an object?

Increase in speed


Answer:

*Decreasing an object's velocity can increase kinetic energy. *Increasing an object's velocity can decrease kinetic energy. *The velocity of an object has no effect on kinetic energy.

ExplanIf the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure (Figure 1).

Giselle leaves the ground at an angle of 25° above the horizontal at a velocity of 5.5 m/s to leap over the fence.

Round all answers to the nearest hundredth.

a) What is the horizontal component of the gazelle’s velocity?

b) What is the vertical component of the gazelle’s velocity?

c) How much later did the Gisele hit the ground?

d) What is her maximum height?

e) How far did she leap?

Answers

Answer:

a) 5.01 m/s

b) 3.28 m/s

c) 0.67 s

d) 0.45 m

e) 2.78 m

Explanation:

Answer:

a) 3.04 m/s

b) 3.7 m/s

c) 0.72 s

d) 0.36 m

e) 4.12 m

Explanation:

A train is resting on a track when another train with several more cars bumps it and causes it to move forward 10 meters. This is an example of acceleration because:

Answers

Answer:

The answer is below

Explanation:

Acceleration is the rate of change of velocity with respect to time. The S.I unit of acceleration is m/s².

We say that there is acceleration if there is a change of distance or change in velocity (increase or decrease) or both.

The statement above is an example of acceleration because there is a change in velocity. The velocity when the motor was at rest was 0, but an increase in acceleration caused the train to move a distance of 10 meters.

help pls pls i give reward

Answers

Answer:

B

Explanation:

There is no new substances formed in choice B

Answer:

the answer is B. boiling of water, bursting of a balloon, crumpling a piece of paper.

calculate the area of the brick if the pressure is 180pa and the force 80N​

Answers

Answer:

A = 0.44 [m^2]

Explanation:

To solve this problem we must remember that pressure is defined as the relationship between Force and area, so we have the following equation:

P = F/A

where:

P = pressure = 180 [pa]

F = force = 80 [N]

A = area [m^2]

Now replacing and solving:

180 = 80/A

A = 80/180

A = 0.44 [m^2]

At 1:00 p.m. a car, traveling at a constant
velocity of 82 km/h toward the west, is 24 km
to the west of our school.
How far from the school will it be at 3:30
p.m.?
Answer in units of km.
.....

Answers

The distance from the school will be 229 Km

What is Velocity ?

Velocity is the distance travel in a specific direction per time taken. Velocity is a vector quantity.

Given that at 1:00 p.m. a car, traveling at a constant velocity of 82 km/h toward the west, is 24 km to the west of our school. How far from the school will it be at 3:30 pm ?

The time taken by the car will be = 3:30 - 1:00 = 2:30 = 2.5 hr

Since the speed is constant, V = s/t

82 = s / 2.5

s = 82 x 2.5

s = 205 Km

The distance from the school = 24 + 205 = 229 Km

Therefore, the distance from the school will be 229 Km

Learn more about Velocity here: https://brainly.com/question/24445340

#SPJ1

The number of protons in an atom is that element’s __________________ number.
PLEASE HELP

Answers

Answer:

Explanation:

atomic number

A net force of 500 N acts on a 100 kg cart. a. What is the acceleration?

Answers

5 you divide the net force by the mass

All atoms of an element have the same number of__But within the same element there may exist atoms that have__numbers of__.Atoms that have the same number of protons but different numbers of neutrons are called__.The neutrons are located in the__ along with protons.
Isotopes can occur__or they may be__. All__are isotopes. Isotopes are written by using the__ of the element, followed by a__
and the s of the protons and neutrons.
1

Answers

Atoms of the same element can have different numbers of neutrons, however. Atoms of the same element (i.e., atoms with the same number of protons) with different numbers of neutrons are called isotopes. Most naturally occurring elements exist as isotopes...

THIS IS THE ANSWER

In ionic bonding , atoms _____

Answers

Answer:

atom is formed by sharing

Explanation:

Answer:

sharing or transferring

What is the frist thing you should do when making an individual decision

Answers

Think about how it may affect others

A student is sitting in a moving car. Through the car's window, the student sees a traffic
light at an intersection pass by and out of sight as the car travels down the road.
Which statement accurately describes the student's motion?
• The student is moving relative to the car’s window but not to the traffic light.
• The student is moving relative to the traffic light but not to the car’s window.
• The student is moving relative to both the car’s window and traffic light.
• The student is moving relative to neither the car’s window nor the traffic light.

Answers

Answer:

I believe it would be the first one "The student is moving relative to the cars window bunt not to the traffic light".

Explanation:

be cause he would be in the car so he would be moving with the car

is an object on the surface of earth sitting still relative to outer space?

Answers

Answer:

Nothing anywhere is sitting still. As all is moving.

What what are the si units for average speed?

Answers

Answer:

m/s

Explanation:

Position/Displacement is measured in meters (m).

Velocity is measured in meters per second (m/s).

Acceleration is measured in meters per second squared (m/s²).

if an object left earth which direction would it travel

Answers

Answer:

In a straight line

Explanation:

Why, because of the power of inerta

Your friend is trying to figure out which flap configuration makes a paper airplane fly the farthest. Which of the following is the independent variable?

Answers

Answer:

answer choices?

Explanation:

An 18.0 N force pulls a cart against a 15.0 N frictional force. The speed
of the cart increases 1.0 m/s every 5.0 s. What is the cart's mass?


Someone please help me on this I only have a few minutes

Answers

Answer:

m = 15 kg

Explanation:

Applied force to the cart, F' = 18 N

Force of friction, f = 15 N

Net force acting on the cart,

F = F' - f

F = 18 - 15

F = 3 N

The change in velocity of the cart is 1 m/s every 5 s.

We need to find the mass of the cart.

The formula of net force is given by :

F = ma, where a is the acceleration of the cart

[tex]F=\dfrac{m\Delta v}{t}\\\\m=\dfrac{Ft}{\Delta v}\\\\m=\dfrac{3\times 5}{1}\\\\m=15\ kg[/tex]

So, the cart's mass is 15 kg.

What allows a pump to raise fluids in pipes

Answers

Answer: The energy to move the fluid is provided by the pressure on the fluid surface.

Explanation:  The frictional losses in the suction pipework and rises in the suction pipework system will reduce the fluid pressure at the pump inlet. If the pump inlet connection is removed the fluid will not flow out of the suction pipework. Hope this helps! :)

Acceleration is caused by a force acting on a mass.​

Answers

Answer:

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Explanation:

ples give a crown

Mr. Linnartz climbs a vertical distance of 100 meters in 20 seconds. If his weight is 990 newtons what is the power he has exerted?

Answers

Answer:

4950W

Explanation:

Given parameters:

Height = 100m

Time  = 20s

Weight = 990N

Unknown:

Power = ?

Solution:

Power is the rate at which work is done.

     Power  = [tex]\frac{Work done }{time }[/tex]

 Workdone  = Force x distance

Input the parameter and solve for the workdone;

   Workdone  = 990 x 100 = 99000J

Now;

    Power = [tex]\frac{99000}{20}[/tex]   = 4950W

Calculate the electrostatic force between a negatively charged PVC pipe (m = 300 g, q = -0.0000007 C) and a positively charged sweater (m = 650 g, q = 0.0000009 C) when they are held 6 cm apart (the centers of their charges are 6 cm apart). Your answer should include the magnitude of the force and clearly state whether they would be pushing or pulling each other with that amount force.

Answers

Answer:

1.575 N

Explanation:

Given that,

Charge on a PVC pipe, q₁ = -0.0000007 C

Charge on a positively charged sweater, q₂ = 0.0000009 C

Separation between charges, d = 6 cm = 0.06 m

We need to find the magnitude of the force between charges. The force between two charges is given by :

[tex]F=\dfrac{kq_1q_2}{r^2}\\\\F=\dfrac{9\times 10^9\times 0.0000007 \times 0.0000009 }{(0.06)^2}\\\\F=1.575\ N[/tex]

So, the electrostatic force has a magnitude of 1.575 N.

Other Questions
Agatha made a five-digit number with 0.3.5.8 and 9. The number isbigger than 39 and smaller than 53. The thousandths digit is 3 times thetenths digit. What number did Agatha make?help pls help with homework im stuck and i donnt want to get it wrong :( can someone help me please. What is the answer? On April 1, 2019, AFC Corporation was organized. The following transactions occurred during 2019:On April 1, 2019, 10,000 shares of $1 par value common stock were issued for $20 per share.On April 2, 2019, a one year rent for $64,000 a year was signed on a store. The corporation paid the entire $64,000 on this date.On April 2, 2019 the company borrowed $50,000 from the bank by signing a three year, 8%note with interest payable each April 1 (first interest payment due April 1, 2020).The company purchased furniture and equipment for $40,000 in cash on April 2, 2019. Thefurniture and equipment has an estimated life of 5 years with no residual value.During the 2019 the company purchased $130,000 worth of merchandise for cash.Merchandise costing $120,000 was sold for $290,000 in 2019. All sales were cash sales.Salaries and wages of $50,000 were paid during 2019.Other operating expenses totaled $10,000 in 2019 and were paid in cash.Dividends of $1 per share were declared on December 15, 2019 to be paid on January 15, 2020.List of Accounts:Cash, Inventory, Prepaid Rent, Furniture & Equipment, Accumulated Depreciation, Interest Payable, Notes Payable, Dividends Payable, Salaries & Wages Payable, Common Stock, Additional Paid In Capital, Retained Earnings, Sales Revenue, Cost of Goods Sold, Rent Expense, Salaries & Wages Expense, Interest Expense, Depreciation Expense, Other Expenses, Dividends1. Journalize the transactions2. Prepare an unadjusted trial balance3. Prepare and Post Adjusting Entries. Prepare all necessary adjusting entries at December 31, 2019. Note that salaries and wages earned by employees in December of 2019 but not yet paid at December 31, 2019 amounted to $3,000 (Remember to update ledger accounts).4. Prepare an adjusted trial balance5. Prepared Financial Statements for the period in good forms how do i evaluate 3/7r+5/8s when r=14 and s=8 Use the diagram to complete the statement. All atoms of an element have the same number of__But within the same element there may exist atoms that have__numbers of__.Atoms that have the same number of protons but different numbers of neutrons are called__.The neutrons are located in the__ along with protons.Isotopes can occur__or they may be__. All__are isotopes. Isotopes are written by using the__ of the element, followed by a__ and the s of the protons and neutrons.1 Identify each picture/box below as an element, compound or mixture: Acceleration is caused by a force acting on a mass. The region of the world that was likely occupied last by early humans was _____________. two eights of a circle is what percent of a circle my teacher told me to anser this plz help Describe the difference between elaboration and visual imagery. -5y + 4x = 4-7y - 10x = - 10 What is an equation of the line that passes through the points (-8,0) and (8,4)? Four lab rats stage a daring escape in broad daylight, eventually establishing a colony behind thelaboratory's parking garage. After one month, the population of the colony has risen to eight rats.After two months, the population is sixteen; after three months, thirty-two, and so on. If the patterncontinues, how many months will it take for the colony population to reach 1,024 rats? which is greater 42.9 or 42.900 identify the typeof reactionC,H,OH + O2 CO2 +H2O A _______ is an injury to either a muscle or tissue that connects muscle to bone, called a tendon Okay 480...... here is the next onewhich property provides clues about how ignneous rocks were formed? A. colorB. textureC. streaksD. luster