Help me out please I need to find this out quick
Answer:
the posible answer is the ball
How long will it take to fall 50 m?
Answer:
down below
Explanation:
Since we aren't the given the time, lets say that an object to 25 seconds to fall 50 meters. We can use the formula [ s = d/t ] to solve.
s = 50/25
s = 2
Therefore, the object was falling at a rate of 2 meters per second.
Best of Luck!
which spectator is likely to get more hurt with tennis / cricket ball
Answer:
It a cricket Ball
Explanation:
If the Moon revolves around the Earth in a circular orbit with a period of 27 days, 7 hours, and 43 minutes, and astronomers have clocked it's orbital speed at 1.03 km/s, what is the centripetal acceleration of the Moon due to its orbit around the Earth?
Answer:
T = (27 da * 24 hr/da + 7 hr + 43 min/60 min/hr) * 3600 sec/hr = 2.36 * 10E6 sec period of moon in sec
C = v t = 2 pi R circumference of orbit where v is orbital speed
ac (centripetal acceleration) = v^2 / R = v^2 / (v t / 2 pi) = 2 pi v / t
ac = 2 pi * 1.03 * 10E3 m/s / 2.36 * 10E6 sec = 2.74 * 10E-3 m /s^2
Andy finds a gold colored "rock" in a stream in California. It has a mass of 96.6 grams and a volume of 5.0 cm3. Using the mass and volume, what physical quantity will Andy need to calculate in order to help determine what he has found?
A.
temperature
B.
weight
C.
density
D.
inertia
Answer:
Density
Explanation:
Density is a property that will allow for a possible identification of a material. Different materials have different densities. The unit for density is g/cm^3
PLEASE HELP IM UNSURE OF WHAT THE ANSWER IS
Answer:
The horizontal forces (Cols 2 & 3) balance for W and Y.
The vertical forces (Cols 1 & 4) also balance for W and Y.
This is not true for either X (unbalanced horizontal forces) or
Z (also unbalnced horizontal forces)
Which element would you expect to be more reactive: phosphorus (P) or fluorine (F)? Explain your answer.
Answer:
Fluorine
Explanation: Fluorine is the most reactive non-metal because it is the most electronegative of all of the non-metal elements of the periodic table.
Mark me Brainliest.
Fluorine would be more reactive.
Fluorine is a member of group 17 in the periodic table. The members of that group are called halogens.
Halogens are known to be highly reactive and for this reason they do not occur free in nature.
Also, fluorine is the most electronegative element (4.0 on Paulings scale). This explains why it is far more reactive than phosphorus (2.19).
Learn more: https://brainly.com/question/2060520
how to find dimension equation of pressure
Explanation:
pressure=force/area
force=mass x acceleration
area=length x width
force=M x LT^-2
area=L^2
[tex] \frac{mlt { - }^{2} }{l {}^{2} } [/tex]
=ML^-1T^-2
Which is the correct answer ?
Answer:
b is
Explanation:
A boulder rolls off a 100 meter cliff with a horizontal velocity of 2 m/s.
Make a sketch of the cliff and the boulder. Be sure to label the height of the cliff, the horizontal velocty of the
boulder, and the trajectory of the boulder
Explanation:
It is given that,
Height of the cliff is 100 m
Its horizontal velocity is 2 m/s
The attached figure shows the sketch of the cliff and the boulder. It will go in the form of parabola. Its trajectory is parabolic in nature. The horizontal distance is called the range of the parabola.
A ball is dropped off a very tall canyon ledge.
How fast is the ball traveling after 5
seconds?
Answer:
V = 49.05 [m/s]
Explanation:
We can easily find the result using kinematics equations, first, we will find the distance traveled during the 5 seconds.
[tex]y =y_{o}+(v_{o}*t)+(\frac{1}{2}*g*t^{2} )[/tex]
where:
Yo = initial position = 0
y = final position [m]
Vo = initial velocity = 0
t = time = 5 [s]
g = gravity aceleration = 9.81 [m/s^2]
The initial speed is zero, as the body drops without imparting an initial speed. Therefore:
y = 0 + (0*5) + (0.5*9.81*5^2)
y = 122.625[m]
Now using the following equation we can find the speed it reaches during the 5 seconds.
[tex]v_{f} ^{2}= v_{i} ^{2}+(2*g*y)\\v_{f}=\sqrt{2*9.81*122.625} \\v_{f}=49.05 [m/s][/tex]
If an object weighs 370 N on earth, what is its mass?
Answer:
37
Explanation:
because the gravitational acceleration is10N/kg so 370/10=37 answer 37kg
In your own words, describe how matter is identified.
Answer:
matter is any substance built of atoms
Explanation:
if anything occupies space and have a mass than that object is identifed as matter.
A computer is on a desk. The normal force pushing up on the computer is 17 N and the weight is 17 N down. Find the net force.
When A computer is on a desk The normal force pushing up on the computer is 17 N and the weight is 17 N down then the Net force is 0 N
What is Balanced and Unbalance forces ?Motion of the object is because of Force exerted on it. Balanced forces are those forces which are opposite in direction and equal in magnitude. When resultant force acting on a body is zero then it is called as balanced force. motion of the body is not because of Balanced force. ex. when two persons pulling rope on both end with equal magnitude which cause them to be balanced force have 0 net force.
When resultant of all the forces is not equal to zero then we call it as Unbalanced forces. unbalanced force are responsible for the motion of the body.
Given,
Normal Force in upward direction = 17N
weight mg in downward direction = 17N
in this case both forces are in opposite direction. one is on positive y direction and other one is in negative y direction. Therefore net force acting on the computer desk is given by,
[tex]F^{2} _{net} = F^{2} _{1} + F^{2} _{2} + 2F _{1}F _{2}cos\alpha[/tex].....1
where [tex]\alpha[/tex] = angle between two forces.
[tex]\alpha[/tex] = 180 [tex]cos\alpha[/tex] = -1
[tex]F_{1} = F_{2}[/tex] , 17N =17N
With this equation 1 becomes
[tex]F^{2} _{net}[/tex] = 2F₁²-2F₁² = 0N
Hence net force is 0 N. This is a balanced force.
To know more about Force, Click :
https://brainly.com/question/26115859
#SPJ2.
A sailfish swims 120 km/hr. How far will it travel in 8.0 minutes?
Answer:
16km
Explanation:
First change the minutes into hours then multiply by the distance.
(8÷60)×120=16km
A) What is the position of the Earth when the Sun rises to its lowest Midday position in the sky in the Northern Hemisphere? b )What is the position of the Earth when the Sun rises to its lowest Midday position in the sky in the southern Hemisphere?
Answer:
A) In northern hemisphere, position of the earth is towards to the sun.
B) In Southern hemisphere, position is away from the sun.
Explanation:
A) In the month of June in the northern hemisphere, the axis of the earth is usually tilted at an angle of about 23.5°. During this period, it revolves around round the sun with one complete revolution of 365 days. Now for the duration of this rotation, the position of the earth is that it leans into the sun when the Sun rises to its lowest Midday position in the sky .
B) For the southern hemisphere, it undergoes the same rotation as in the northern hemisphere. Just that it is usually in the month of December and the position of the earth is that it leans away from the sun when the Sun rises to its lowest Midday position in the sky .
How long will it take to travel 200 km while traveling at a speed of 10 m/s?
Please explain me how to do this and what formula to use, thank you.
Answer: 20,000 seconds
Explanation: there are 1000 miles in a km, so 200km is 200,000 miles
What would be the volume of a liquid that has a density of 1.2 g/mL and a mass of 24 grams
Answer:
The answer is 20 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\[/tex]
From the question
mass = 24 g
density = 1.2 g/mL
We have
[tex]volume = \frac{24}{1.2} \\ [/tex]
We have the final answer as
20 mLHope this helps you
What is the average velocity of a car that goes 120 m in 20 seconds?
Answer:
6 m/s
Explanation:
120m/20s = 6 m/s
The average velocity of a car that goes 120 m in 20 seconds would be 6 meters per second, as the average velocity is calculated by dividing the total distance covered by the moving car by the total time taken by the car.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity. The generally considered unit for velocity is a meter per second. It depends on the magnitude as well as the direction of the moving body.
As the average velocity is determined by dividing the total distance traveled by the driving car by the complete amount of time it takes to travel that displacement, a car traveling 120 meters in 20 seconds would move at an average speed of 6 meters per second.
Thus, the average velocity of the car would be 6 meters/second.
To learn more about Velocity from here,refer to the link;
brainly.com/question/18084516
#SPJ2
If a 60-g object has a volume of 30 cm", what is its density?
Answer:
Density = Mass/volume. D= 60/30.Divide it and you'll get ur answer as 2
When energy is transformed, some is used, but most is released as unusable heat energy, according to the law of thermodynamics.
The nucleus of the atom contains 8 protons and 9 neutrons. The atom is electrically
neutral. How many electrons does this atom have?
The no of the electron must be 8 so that the atom will become electrically neutral. An electrically neutral atom has an equal no of electrons and protons.
What is an atom?The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus proton and the neutron is exists. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
In the given condition the number of protons is 8.
Hence the no of the electron must be 8. So the atom will become electrically neutral.
To learn more about the atom refer to the link;
https://brainly.com/question/1566330
What is in between the nucleus and the electrons in an atom?
A jello-like goo
B.Protons and Neutrons
C.mushy substance similar to pudding
D
Empty space
Answer:
D. Empty Space
Explanation:
An apple is thrown across the cafeteria with a force of 10 N and at an acceleration of 6 m/s2. What is the mass of the apple? ... please answer asap
Answer:
Explanation:
F = m * a
The apple's acceleration is not influenced by the acceleration due to gravity for this question. In real life it most certainly is influenced by gravity.
F = m * a
F = 10 Newtons.
a = 6 m/s^2
m = 10/6 = 1.66 kg. Mighty large apple
What is one characteristic of an electron?
O A. Almost no charge
O B. A mass of 1 amu
O C. A charge of +1
O D. Almost no mass
Answer:
the answer to this question is A
Answer:
It is D. Almost no mass
Explanation:
The mass of an electron is 1/2000 times of proton/neutron
which two types of energy does a book have as it falls to the floor?
What is the direction and speed of an object?
Answer:
Explanation:
Velocity by definition means speed and direction of an object. This means it has a value and a positive or minus sign indicating direction. Speed is the absolute value of velocity because there is no direction correlated with speed. If you add a direction, it is then called velocity
Calculate the kinetic energy of a 1500 kg car moving at 42 km/hr.
What is the average (mean) of these numbers: 13,43, 12, 3,66
Answer:
27.4
Explanation:
(13+43+12+3+66)/5
137/5
27.4
Answer:
27.4 because you add them all together and divide the number you get by 5
1. What were the 3 basic concepts of government that the English brought with them to North America?
How did these concepts influence constitutional government in America?
Answer:
1)limited system of government
2)representative system of government
3)individual rights system of government
Explanation:
the 3 basic concepts of government that the English brought with them to North America are listed in the answer
