Answer:
Hope this helps!
Explanation:
As an object falls, it picks up speed. The increase in speed leads to an increase in the amount of air resistance. Eventually, the force of air resistance becomes large enough to balances the force of gravity. At this instant in time, the net force is 0 Newton; the object will stop accelerating. An object falling toward earth stop accelerating when it velocity becomes terminal velocity. Or When weight becomes equal to Drag force acting on the object due to air resistance.
CHECK MY Second post
Answer:
I dont get it
Explanation:
A box moves 1000 m horizontally as a force F 2000 N is applied downward. What is the work done on the box by F during the displacement?
Answer:
D. OJ
Explanation:
Describe the physical properties of stars and how they relate to the Hertsprung-Russell diagram.
write like 4 sentences
Answer:
Explanation:The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
hoped this helped
Where on Earth might you find these conditions?
Drawbacks to which energy source include build up of silt or disruption of salmon migration?
es
A)
Nuclear energy
B)
Geothermal energy
C
Photovoltaic cells
D)
Hydroelectric power
If 2.2 lbs = 1.0 kg, and Megan Progress weighs 130 lbs, what is her weight in newtons?
(F= ma). where acceleration due to gravity is 9.8 m/s2
Answer:
Force = 2802.8 Newton
Explanation:
Given the following data;
Mass = 130 lbs
But, 2.2 lbs = 1.0 kg
130 lbs to kg = 130 * 2.2 = 286 kg
Acceleration due to gravity = 9.8m/s²
To find the force in Newton;
Force = mass * acceleration due to gravity
Force = 286 * 9.8
Force = 2802.8 Newton
What is the reason for heat transfer from one substance to another?
OA. difference in pressure
OB.
difference in volume
O c.
difference in temperature
OD.
difference in mass
Answer:
A I think
Explanation:
heated air molecules have a lot if pressure and they try to release that pressure by either expanding or transfering
Una carga eléctrica de 120 Coulomb pasa uniformemente por la sección transversal de un hilo conductor durante un minuto. La intensidad de la corriente eléctrica que circula en ese conductor es
Answer:
I = 2 A
Explanation:
Electric current is defined as the amount of face per unit of time
I = Q / t
where Q is the charge and t is the time
let's reduce the time to the SI system
t = 1 min (60s / 1 min) = 60 s
let's calculate
I = 120/60
I = 2 A
The pressure at the bottom of a lake is 300 000 N/m2 more than at the surface of the lake. The lake is fresh water (density = 1000 kg/m3).
Answer:
h = 30.61 m
Explanation:
In this problem they indicate the pressure at the bottom of the lake and the density of the water, for which they must ask what is the depth of the lake.
The pressure is given by the expression
P = [tex]P_{atm}[/tex] + rho g h
P - P_{atm} = rho g h
The gauge pressure value is P- P_{atm} = 3 105 N / m²
h = [tex]\frac{P - P_{atm}}{ \rho \ g}[/tex]
let's calculate
h = [tex]\frac{3 \ 10^5}{1000 \ 9.8}[/tex]
h = 30.61 m
What does saliva begin to break down in the mouth?
answers QUICK I will make you brainst !
An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.
This is an example of a ____________ resource using _______.
A'renewable;; wind
B'nonrenewable; wind
C;renewable; electricity
D;nonrenewable;electricity
Answer:
A
Explanation:
I guess but not sure cause wind is soemthing you can get back electricity is soemthing you can't
football player A has a mass of 110 kg is running on the field is velocity of 2 m/s football player B has a mass of 120 kg and a stationary what if football player a collage of the football player babe what is the total momentum after the collision
Complete Question:
Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. Football player B has a mass of 120 kg and is stationary. What is the total momentum after the collision?
Answer:
Total momentum = 220 Kgm/s.
Explanation:
Given the following data;
For footballer A
Mass, M1 = 110kg
Velocity, V1 = 2m/s
For footballer B
Mass, M1 = 120kg
Velocity, V1 = 0m/s since he's stationary.
To find the total momentum;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
[tex] Momentum = mass * velocity [/tex]
a. To find the momentum of A;
[tex] Momentum \; A = 110 * 2 [/tex]
Momentum A = 220 Kgm/s.
b. To find the momentum of B;
[tex] Momentum \; B = 120 * 0 [/tex]
Momentum B = 0 Kgm/s.
c. To find the total momentum of the two persons;
[tex] Total \; momentum = Momentum \; A + Momentum \; B [/tex]
Substituting into the equation, we have;
[tex] Total \; momentum = 220 + 0 [/tex]
Total momentum = 220 Kgm/s.
The total momentum after the collision will be 220 Kgm/s.Momentum is equal to its mass multiplied by its velocity.
What is momentum?The measurement of mass in motion is called momentum. Momentum is equal to its mass multiplied by its velocity. Mathematically it is given as;
Momentum = Mass x Velocity
The given data in the problem is;
m₁ is the mass of player A= 110 kg
m₂ is the mass of player B= 120 kg
v₁ is the velocity of player A= 2m/s
v₂ is the velocity of player B=0m/s
P is the total momentum=?
The momentum of player A;
[tex]\rm P_A= m_A \times v_A \\\\ \rm P_A= 110 \times 2 \\\\ \rm P_A= 220 \ Kgm/sec[/tex]
The momentum of player B;
[tex]\rm P_B= m_B \times v_B \\\\ \rm P_B= 120 \times 0 \\\\ \rm P_B= 0 \ Kgm/sec[/tex]
The total momentum is given by;
Total momentum = momentum of the player A+ momentum of the player B
[tex]\rm P= P_A+P_B \\\\ \rm P= 220+0 \\\\ \rm P=220 \ m/sec[/tex]
Hence the total momentum after the collision will be 220 Kgm/s
To learn more about the momentum refer to the link;
https://brainly.com/question/4956182
PLEASE HELP...How much power is done when you exert 30J of Work over 5 seconds?
May Help:
In classical physics terms, you do work on an object when you exert a ... to do work (follow the kinetic and potential energy links for a more in ... runs twice as powerfully as the runner that finishes in 5 hours. The unit of power is joules per second or J/s when work is measured in joules and time in seconds.
describe the Pascal's principles
Explanation:
Pascal's principle, also called Pascal's law, in fluid (gas or liquid) mechanics, statement that, in a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container.
When a 4-kg ball is thrown upwards at 40 m/s, at what
height is the potential energy equal to the kinetic
energy
Answer:
the height of the potential energy is 3,200 J
Explanation:
The computation of the kinetic energy is shown below:
Kinetic energy = 1 ÷ 2 × mass × velocity^2
= 1 ÷ 2 × 4 kg × 40 m/s^2
= 3,200 J
Hence the height of the potential energy is 3,200 J
I’ll name u BRAINLIEST if u get this right
Calculate the weight of a boy of mass 67kg on Earth if gravity = 10m/s/s.
What type of reaction is shown in the following chemical equation: 2H20 - 2H2 + O2?
a
Oь
о Oc
Od
single-displacement
decomposition
double-displacement
synthesis
Answer:
This is a Synthesis Reaction I believe.
Answer:
the reaction is a synthesis reaction
Two charged balls are 10 cm apart. One is positively charged, and the other is negatively charged.
Explain how the electric field and/or force would change if both balls had positive charge.
Answer:Explanation: The field lines of the electric charges extend from the positive to negative side charge. ... The force between the two charged balls is attractive. It is directly proportional to the product of their charges and inversely proportional to the magnitude of the distance between them.
Explanation:
hope this helps
Explain why white light splits up into the different colours when it goes through a prism
Answer:
Light splits up into different colors because of the electromagnetic spectrum which makes the light bend, wavelength, and it makes different colors by it :3
Explanation:
:3
What are some examples from regular life that support the claim that gravitational interactions are are attractive and depend on masses
Answer:
The force that holds the gases in the sun.
The force that causes a ball you throw in the air to come down again.
The force that causes a car to coast downhill even when you aren't stepping on the gas.
The force that causes a glass you drop to fall to the floor.
Explanation:
Hope, these examples may help you
Which kind of body has a nucleus, coma, and tail?
A.comets
B.stars
C.meteors a
D.steroids
even if u dont know the right answer can someone just give me an answer that looks right
Answer:
The answer is elastic
Explanation:
hope this helps!
A machine applies a force of 100 newtons over a distance of 10 meters to raise a 500 newton
drum 1.5 meters. What is the work input?
Explanation:
work input is the work done by the machine in lifting the drum = Force × distance
100N × 10m
= 1000 J
When the sun, the moon, and the Earth line up during a new moon, which of the following is produced?
low tide
high tide
spring tide
neap tide
Answer:
neap tide i think or high tide
How does convection current helps cooling the system of engines
What is the force of friction caused by a block with a weight of 150N being pushed across a floor with a coefficient of friction equal to 0.5?
Answer:
75 N
Explanation:
F = μF = 0.5(150) = 75N
A car and driver weighing 6900 N passes a sign stating “Bridge Out 26.6 m Ahead.” She slams on the brakes, and the car decelerates at a constant rate of 10 m/s2 .
The acceleration of gravity is 9.8 m/s2 .
What is the magnitude of the work done stopping the car if the car just stops in time to avoid diving into the water?
Answer in units of J.
Answer:
187286 J
Explanation:
Lets work backwards. We are trying to find work, and are given kinematic variables. We know that the W = Fd, and since we already have d, all we need to find is F.
Using F = ma:
We know [tex]mg = W = 6900[/tex], and so solving for m, we get 704.082kg.
Now we can plug in the decelleration of the car with the mass in order to find the force against the car(by the brake).
[tex]F = 704.082*(-10) = -7040.82[/tex]
Now plugging this into W = Fd, we get:
[tex]W = (7040.82)*26.6 = 187286J[/tex]
This is just the magnitude, but if you wanted to find the sign of W, you would use the fact that the force is going in the opposite direction of the car, so work would be negative. However, this question asks only for the magnitude, so we ignore the final sign.
The relationship between kinetic energy and speed is ________ proportional
The relationship between kinetic energy and speed is directly proportional.
The given problem is based on the Kinetic energy. The energy possessed by any object by virtue of its motion is known as kinetic energy of an object. The mathematical expression for the kinetic energy is given as,
[tex]KE = \dfrac{1}{2}mv^{2}[/tex]
Here,
m is the mass of object.
v is the speed of object.
the mass of any object remains constant. Then, the kinetic energy is given as,
[tex]KE \propto v^{2}[/tex]
Thus, we can conclude that the kinetic energy is directly proportional to the square of speed of object.
Learn more about the kinetic energy here:
https://brainly.com/question/17858145
Flexibility training helps reduce the range of motion of your joints and muscles.
True or false