An egg is thrown horizontally off the top row bleachers at the Brickyard,
which is 30 meters high, with a horizontal velocity of 7.5 m/s. How long
does it take to hit the ground?

Answers

Answer 1

Answer:

4

Explanation:

Divide 30 meters by 7.5 and you´re answer is 4. This is how I would think you solve the problem


Related Questions

The specific heat capacity of oxygen is 918 J/kg °C. The specific heat capacity of water is 4181 J/kg °C. Which substance will require more energy to raise its temperature by 1°C?

Oxygen and water

Answers

Answer:

Water

Explanation:

Answer:

So, water has a specific heat of exactly 1.00 calorie per gram per °C. Because one calorie is equal to 4.18 J, it takes 4.18 J to raise the temperature of one gram of water by 1°C. In joules, water's specific heat is 4.18 J per gram per °C.

The answer is water.

A motorcyclist drives around a bend with a 20 m radius, with a constant velocity of 3 m/s. The motorcyclist and the motorcycle have a combined mass of 50 kg. What is the motorcyclist’s centripetal acceleration?

Answers

Answer:

[tex]a=0.45\ m/s^2[/tex]

Explanation:

Given that,

The radius of a bend, r = 20 m

Velocity of motorcyclist, v = 3 m/s

The combined mass of motorcyclist and the motorcycle is 50 kg

We need to find the motorcyclist’s centripetal acceleration. The formula used to find the centripetal acceleration is given by :

[tex]a=\dfrac{v^2}{r}\\\\a=\dfrac{(3)^2}{20}\\\\a=0.45\ m/s^2[/tex]

So, the acceleration of the motorcyclist is [tex]0.45\ m/s^2[/tex].

Calculate the pressure exerted by the elephant (24000 Newtons) on the ground, assuming that
the total area of its feet is 0.8 m2.​

Answers

Answer:

3000 Pa

Explanation:

The pressure exerted by the elephant can be found by using the formula

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

f is the force

a is the area

From the question we have

[tex]p = \frac{2400}{0.8} \\ [/tex]

We have the final answer as

3000 Pa

Hope this helps you

What is the end product of mitosis?
A. Four gametes
B. Two identical nuclei
C. One complete zygote
D. A cell with one set of chromosomes

Answers

Answer:

It is B

Explanation:

I did the test

From the given options, the end product of mitosis is Two identical nuclei (option b)

Mitosis is a fundamental cellular process that occurs in somatic (non-reproductive) cells, aiming to create two genetically identical daughter cells from one parent cell. It consists of several stages: prophase, metaphase, anaphase, and telophase.

During prophase, the chromatin (a combination of DNA and proteins) condenses into visible chromosomes, and the nuclear membrane disintegrates. In the subsequent stage, metaphase, the chromosomes align at the cell's equator, ensuring each daughter cell receives an equal number of chromosomes.

Next comes anaphase, where the paired chromosomes are pulled apart and move towards opposite poles of the cell. The final phase, telophase, involves the formation of two separate nuclei around the separated chromosomes.

At the end of mitosis, the single parent cell has divided into two genetically identical daughter cells, each containing a complete set of chromosomes. These daughter cells are fully functional and capable of carrying out their specific tasks within the organism.

So, the correct Answer: B. Two identical nuclei.

To know more about mitosis here

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The average mass of a car in the US is 1.440 x 10^6 g. Express this mass in kg.

Answers

Answer:

Average mass of acar in the US (in kg) = 1440 kg

Explanation:

Average mass of a car in the US (in g) = 1.440 × 10⁶ g

Mass in kg:

[tex] \rm 1 \: g = {10}^{ - 3} \: kg \\ \\ \rm 1.440 \times 10^6 \ g = 1.440 \times 10^6 \times {10}^{ - 3} \ kg \\ \\ \rm = 1.440 \times 10^{6 - 3} \ kg \\ \\ \rm = 1.440 \times 10^3 \ kg \\ \\ \rm = 1.440 \times 1000 \ kg \\ \\ \rm = 1440 \ kg[/tex]


If Judy walks 2 blocks north, 5 blocks west, and then 2 blocks south, what is her final
displacement?

Answers

Answer: 2 blocks east if i'm not mistaken.

I will mark a brainluest, And good ponits, Please help me out​

Answers

Answer:

gas, liquid and the last one is opaque solid

Explanation:

Answer:

gas, liquid and the last one is opaque solid

Explanation:

what are insulators of electricity​

Answers

Answer:

Rubber

Glass

Pure water

Oil

Air

Diamond

Dry wood

Dry cotton

Plastic

Asphalt

Other strong insulators include:

Fiberglass

Dry paper

Porcelain

Ceramics

Quartz

Explanation:

I hope this helps

15. Sandra decided to talk a walk at her neighborhood park. She walks 20 meters
east, 40 meters west, and finally 50 meters east. What is her total distance
and displacement, respectively?

Answers

Answer:

Long question good luck:)..............

Explanation:

a 5 kg mass is accelerated at a rate of 2.5 m/s/s. what is the force that is exerted on this object

Answers

Answer:

12.5 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 = 5 × 2.5

We have the final answer as

12.5 N

Hope this helps you

At the top of a projectile's path above Earth, the acceleration of an object

Answers

Answer: At the top of a projectile's path above earth, the acceleration of an object. Compared to the range of a bullet shot horizontally, a bullet shot at a 30 degree angle.

Explanation: I hope that helped!

a train covers half of its journey with a speed of 20 metre per second and the other of with the speed of 30 metre per second the average speed of the pain during the whole journey is​

Answers

Answer:

25 meters per second

Explanation:

2 halves so you find the average of the two by adding 20+30=50 then dividing it by number of halves, this is 2.

50/2=25

Which of the following is most likely to produce a loud echo? Explain your answer.
Talking in a furnished, carpeted room

Singing in a tiled shower

Yelling across an open field

Answers

Number 3

plzlzllzllz mark as a brainiest!

Answer:

b

Explanation:

yes

Brenda is telling a classmate that we really don’t need to worry about droughts because the supply of water on Earth is constant. Explain to Brenda and her classmate why droughts are a real concern.

Answers

Droughts are a real concern because although water is constant, water is not evenly distributed amongst every location on Earth. Many places experience a monsoon season or other extremely wet period, but many other places feature a more desert terrain and climate. In there locations, there is little to no water accessible.

Also, if a normally wet location is experiencing a drought, plants and agriculture that rely on an abundance of water could die, limiting food sources.

Answer:

the reason droughts are a real concern is because even though water is constant doesnt mean its constant everywhere. Rain sometimes cant or wont fall in certain places, to drink sea water you've got to prepare it. even if rain falls heat can cause it to not rain to much or not rain at all.

How to get the radius from the circumference?

Answers

Answer:

The equation Pi = c/2r means that Pi (r) = c/2, so r = c / (2 Pi). The radius of a circle is therefore equal to c / (2 Pi), where c is the circumference of the circle.

Explanation:

In which of the following instrument is the image that is formed erect
a. Pin hole camera b. Simple camera c. microscope d. periscope​

Answers

Answer:

C. microscope

Explanation:

A simple microscope is magnifying glass, an ordinary double convex lens having a short focal length that produces virtual and erect image.

How to Calculate weight

Answers

Answer:

Weight is a measure of the force of gravity pulling down on an object. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object's weight in Newtons (N) and m is the object's mass in kilograms.

Explanation:

* 1 po
What are the health benefits of having muscular strength and endurance?

Answers

Answer:

i can`t help without showing me the choses

Explanation:

If we drop two iron balls, one ball is bigger than another one, from
same height which will fall first to ground? Explain why.

Answers

Answer:

The bigger one. Ignoring air resistance, they will fall at the same speed, but the bigger one will hit first because it sticks out lower.

Explanation:

A construction worker accidentally drops a brick from a high scaffold. a. What is the brick's velocity after 4.0 s? b. How far does the brick fall during this time?

Answers

Answer:

A. 39.2 m/s

B. 78.4 m

Explanation:

Data obtained from the question include:

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

A. Determination of the brick's velocity.

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

Velocity (v) =?

v = gt

v = 4 × 9.8

v = 39.2 m/s

Thus, the brick's velocity after 4 s is 39.2 m/s

B. Determination of how far the brick fall in 4 s.

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

Height (h) =?

h = ½gt²

h = ½ × 9.8 × 4²

h = 4.9 × 16

h = 78.4 m

Thus, the brick fall 78.4 m during the time.

The velocity after 4 seconds is 40 m/s and the height is 80 m.

From the equations of motion under gravity;

v = u + gt

V = final velocity of the brick

u = initial velocity of the brick

g = acceleration due to gravity = 10 ms-2

t = time taken

Note that, u = 0 m/s because the brick was dropped from a height.

v = 0 + 10(4)

v = 40 m/s

The height is obtained from;

h = ut + 1/2 gt^2

u = 0 m/s because the brick was dropped from a height.

h =  1/2 gt^2

h = 1/2 × 10 × (4)^2

h = 80 m

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When you drop a 2 kg iron weight and a 5 kg iron weight from a height, predict which one will fall first to the ground. Justify your answer

helppppp!!!!!!!!!!!!!!!

Answers

Answer:

The 5kg iron.

Explanation:

It would be 5Kg iron because it is heavier. Heavier objects fall faster.

When you drop a 2 kg iron weight and a 5 kg iron weight from a height, both will hit the ground at the same time.

What is weight ?

"It is the measure of the force of gravity acting on a body. "The formula for weight it is given by: w = mg. As weight is a force its SI unit is also the same as that of force, SI unit of weight is Newton (N).

What is free fall of a body ?

"State of a body that moves freely in any manner in the presence of gravity. The planets, for example, are in free-fall in the gravitational field of the Sun. Newton's laws show that a body in free-fall follows an orbit such that the sum of the gravitational and inertial forces equals zero."

Know more about free fall of body here

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What does the big ‘2’ in 2CO2 mean?



Please help quickly i'm in science class

Answers

Answer:

It means you multiply everything after the "Big two"

Explanation:

which term describes the image of an object that is placed in front o a convex mirror?

Answers

Answer:

The answer of this question is :- Virtual image

Explanation:

Virtual image is the correct answer

A football player kicks a ball with an initial velocity of 25 m/s at an angle of 53 degrees above the horizontal. The vertical component of the initial velocity of the ball

Answers

Answer:

20 m/s

Explanation:

initial velocity, u= 25m/s

u has two components. one in horizontal and in one vertical.

so,

u sin theta = vertical component.

=> u sin theta = 25× 4/5

= 20 m/s

1. Which of the following is a unique feature of light waves?

Answers

Answer: they are compression waves

Explanation:

The unique property of light waves is that they do not require a medium for propagation.

Generally; waves are classified into electromagnetic waves and mechanical waves. Mechanical waves require a medium of propagation while electromagnetic waves do not require a medium for propagation.

Also, waves are classified into transverse waves and longitudinal waves. In transverse waves, the disturbance is perpendicular to the wave front while in longitudinal or compressional waves, the disturbance is parallel to the wave front.

Light is both an electromagnetic wave and a transverse wave. This means that it requires no material medium for propagation. This is the unique property of light waves.

Learn more: https://brainly.com/question/2673886

We do not use water instead of mercury in a barometer.. why.​

Answers

Answer:

Required Answer:-We don't use water as Water don't expand when it came in connection of temperature.

If the box the man is carrying is very heavy, explain if he does any work as he walks across the room with it.

Answers

since the box is heavy, i don’t believe he would be able to do any work because of the mass. as the man carries the box across the room, it is being pulled to the ground by gravity— this makes the man focus on keeping the box in his arms.

sorry if this isn’t what you were asking!

So I don’t really get it can you also explain what’s the difference between radiation,conduction, and convection?

Answers

Answer:

I think its radiation

Explanation:

Conduction is the transfer of heat through solids (A)

Convection is the transfer of heat through liquids or gasses (B)

Radiation is the transfer of heat through em waves (C)

what was the rule of the sticks on each atom model​

Answers

Answer:

That they must die

Explanation:

Stick = Die

Answer: That they must die


Excellent

The soprano's singing caused a drinking glass to shatter.
Explain why this happened using what you know about
resonance.

Answers

because sopranos voices are so high pitched they can make glass shatter from all the vibration in the room

Answer:

The soprano's singing matched the natural frequency of the glass, causing it to vibrate. The strong vibrations caused the glass to shatter.

Explanation:

edg 2020

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