Answer:
the physical properties and phenomena of some thing.
In explannation
Physics is a branch of science. It is one of the most fundamental scientific disciplines. The main goal of physics is to explain how things move in space and time and understand how the universe behaves. It studies matter, forces and their effects. The word physics comes from the Greek .
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what give negative acceleration ?
Answer:
But negative acceleration means that the rate of change of velocity is negative or velocity decreases. Example: (1) When we apply brakes in a moving car, then negative acceleration acts on it and the car stops. (2) When we throw a ball upwards, then also negative acceleration acts on it.
Explanation:
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MATHEMATICALLY A NEGATIVE ACCELERATION MEANS YOU WILL SUBTRACT FROM THE CURRENT VALUE OF THE VELOCITY.
The mass of an object is 4kg and it has a density of 5gcm^-3. what is the volume
Answer:
density = mass/ volume
5=4000/ volume
volume=4000/5
volume=800 cm^-3
400 N multiply by x = 100 N x 2M
Answer:
x = 2m
400N*x = 100N * 2M
400N*x = 200Nm
x = 400N/200Nm = 2m
How many millilitres are there in one dm3
Answer:
there is 1000ml in 1dm3
Explanation:
Answer:
There are 1000 millilitres in one dm3 .
could someone give me lessons for pressure?
Explanation:
Pressure is defined as the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area. The basic formula for pressure is F/A (Force per unit area). Unit of pressure is Pascals (Pa). Types of Pressures are Absolute, Atmospheric, Differential, and Gauge Pressure.
what will happen to the gravitational force between two bodies if the distance between them is halved keeping their masses constant ?..
what is Newton's gravitational constant ? write down its value and si unit.
What is Anatomy & Physiology in 5 words?
Answer:
Anatomy is the study of the structure and relationship between body parts.
Physiology is the study of the function of body parts and the body as a whole.
Explanation:
Can ya pls answer dis rq!
Answer:
For vegetarians beans
Explanation:
Because it's plant protein and very proteinious
The force exerted by the earth on a body is called ______of a body.
Answer:
The force exerted by the earth on a body is called gravitational of a body.
i think this is the answer
Answer:weight
Explanation:
A block of ice is floating in a cup of water. It is 0.5 cm above the water surface and its length
and width are 2cm each. Given that the density of ice is 900 kgm 3 and the density of the
water is 1000 kgm3, find the volume of the ice block.
0.5 cm
d cm
2 cm
2 cm
Answer:
Let the volume of the cube be V and the fraction of cube outside water be f.
Thus, volume of ice inside water = volume of water displaced =(1−f)V
Under equilibrium,
Weight of ice = Weight of water displaced
⟹Vρ
ice
g=(1−f)Vρ
water
g
⟹(1−f)=
10
9
⟹f=
10
1
Thus, the percentage of volume outside water =10%
Find the amount of force required to move an object of 1200 kg at a velocity of 54 km/hr?
The amount of force required to move the object is 64,800N
The first step is to write out the parameters given in the question;
Mass= 1200 kg
Velocity= 54 km/hr
The amount of force required to move the object can be calculated as follows;
Force= mass × velocity
= 1200×54
= 64,800N
Hence the amount of force that is required to move the object is 64,800N
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Find the amount of force required to move an object of 1200 kg at a velocity of 54 km/hr?
Answer:
0 Newtons
Explanation:
The velocity of the object does not change, it is a constant 54 km/hr. When velocity does not change, acceleration is zero. Using the formula Force = mass x acceleration, we find:
mass = 1200 kg
acceleration = 0
F = (1200)(0) = 0
A force of 50 N stretches a string by 4 cm,calculate the elastic constant.
Answer:
50/0.04= answer
A circuit with a total of 2 ohms of resistance and has a 6 volt battery. If an electron starts off in the circuit with 5.8 volts and takes 5 nanoseconds to reach the end of the circuit, it will have a voltage of
The final potential energy of the electron is zero Volt, (0 V)
Given;
total resistance of the circuit, R = 2 ohmsvoltage of the battery, emf = 6 Vinitial voltage of the electron, V₁ = 5.8 Vtime taken for the electron to reach the end of the circuit, t = 5 ns = 5 x 10⁻⁹ sThe driving force of an electron in the circuit is the electromotive force of the cell (emf).
The initial energy acquired by the electron decreases gradually as the electron moves across the circuit and eventually it will be used up. This is the sole reason battery discharges when the circuit is closed or delivering current.
Thus, the final potential energy of the electron at the end of the circuit is zero (0), because all the initial energy will be used up to drive the across the circuit.
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The mass of a body:
(a) decreases when accelerated
(b) increases when accelerated
(c)decreases when moving with high velocity
(d)none of above
a car start to move from the rest with an acceleration of 0.25 metre per second square find the final velocity after 3 min
Using 1st equation of kinematics
[tex]\\ \bull\sf\longmapsto v=u+at[/tex]
[tex]\\ \bull\sf\longmapsto v=0+0.25(180)[/tex]
[tex]\\ \bull\sf\longmapsto v=45m/s[/tex]
⇛Initial velocity (u) = 0 m/s
⇛Acceleration (a) = 0.25 m/s²
⇛Time (t) = 3 minutes
⇛Final velocity (v) = v
Converting 3 minutes into seconds
1 minute = 60 second3 minutes = 60 × 33 minutes = 180 Seconds☛ Using 1st equation of motion[tex] \Large\begin{gathered} {\underline{\boxed{ \rm {\red{v \: = \: u \: + \: at}}}}}\end{gathered}[/tex]
☛ Substuting the values[tex] \bf \large \longrightarrow \: \: v \: = \: 0 \: + \: 0.25 \: \: (180)[/tex]
[tex]\bf \large \longrightarrow \: \: v \: = \:45 \: m/s[/tex]
3. Assume that the elastic bands on a slingshot work like a spring with a
spring constant of 250 N/m. If you have to pull back with 100 N of stretch
(spring) force to fully stretch the bands, how far will the elastic bands stretch?
Please help me
As you stretch the band a distance x, the force you need to exert has a magnitude of (250 N/m) x.
So if 100 N is required to stretch it to maximum length, then this length is x such that
100 N = (250 N/m) x ==> x = (100 N)/(250 N/m) = 0.4 m
Answer:
0.6
Explanation:
I got it right
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during a journey, a car travels at 40 km in 2.5 hours, next 62 km in 3 hours, then took a break for 30 minutes, again travelled the last 120 km in 3.2 hours. calculate the average speed of the car during the journey.
what is the Ramsar convention?
........................
Answer:
14°F = 263.15 K
31°F = 272.594 K
71°F = 294.817 K
35°F = 274.817 K
Explanation:
Use the formula 273.15 + ((°F–32)•5)/9
A plane flying at an altitude of 33,000 feet at a speed of 630 miles per hour releases a bomb. Find the tangential and normal components of acceleration acting on the bomb.
Ignoring air resistance . . .
After the bomb is released, tangential (horizontal) acceleration is zero,, normal (vertical) acceleration is 9.8 m/s^2 down (gravity).
Define Metrology
define Metrology
Answer:
the scientific study of measurement.
3) All numbers that are divisible by both 3 and 5 are also divisible by 10. Which of the following numbers can be used to show that the statement above is FALSE? (A) 20 (B) 25 (C) 30 (D) 40 (E) 45
Answer:
answer E
Explanation:
cuz its 45 is divisible by 3 and 5 but not 10
I NEED HELP ASAP
Since the investigative question has two variables, you need to focus on each one separately. Thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? Use the format of "if…then…because…” when writing your hypothesis.
Explanation:
The formula of kinetic energy is K.E= m[tex]v^{2}[/tex]/2 , where m is the mass and v is the velocity. According to the formula, if we double the mass, the kinetic energy will also double then we can say the Kinectic energy is directly proportional to the mass.
Answer:
Sample Response: If the mass of an object increases, then its kinetic energy will increase proportionally because mass and kinetic energy have a linear relationship when graphed.
Explanation:
100% Edge 2022 :)
which substance is an acid ?
Answer:
According to Arrhenius definition, an acid is a substance that releases hydrogen ion or hydronium ion.
there are also other definition like bronsted and lewis.
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(A stone dropped freely from 72 m height of the tower and reaches to the ground in 6 seconds. What is acceleration due to gravity of that stone. At what condition does the acceleration due to gravity becomes zero.)
Answer:
As the stone is falling totally under the influence of gravity and toward the earth surface the acceleration is due to gravity and positive. Hence acceleration due to gravity,g is 4m/s²
What will be value of the unit, if it is measured in kg?
Explanation:
The kilogram (kg) is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10−34 when expressed in the unit J s, which is equal to kg m2 s−1, where the meter and the second are defined in terms of c and ∆νCs.
what is system? Define
Answer:
a system is a set of some things which helps the good happenings in ousr day to day life. It also helps the astrophysisists to find the planets with a system
define 1 second time
Answer:
define 1 second time
One second is the time that elapses during 9,192,631,770 (9.192631770 x 10 9 ) cycles of the radiation produced by the transition between two levels of the cesium 133 atom. ... One second is equal to 1/86,400 of a mean solar day.
Answer:
One part of 86400 part of a day is called one second time.
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