Answer:
The evidence is : Light reflects when it hits a surface.
Explanation:
The meaning of dual wave particle nature is that light exhibits both wave and particle properties. This is to say that light is a particle in form of a photon and a wave due to flow of photons. The properties displayed by light such a reflection of light and scattering of light are possible due to the properties of small particles/photons.
Answer:
Light reflects when it hits a surface
Explanation:
A iPhone charger system producing 14.5 Volts with a current flow of 43.5 Amps. What is the circuit resistance?
Answer:
The resistance of the circuit is 0.[tex]\bar 3[/tex] Ω
Explanation:
The given parameters are;
The voltage the charger produces = 14.5 Volts
The current flow of the charger = 43.5 Amps
Therefore, the resistance of the circuit, R = Voltage V/(Current, I)
R = V/I = 14.5/43.5 = 1/3 = 0.[tex]\bar 3[/tex] Ohms
The resistance of the circuit = 0.[tex]\bar 3[/tex] Ohms
Which can be written with the symbol for the unit of resistance Ω as follows;
The resistance of the circuit = 0.[tex]\bar 3[/tex] Ω.
What does it mean for objects to be at different temperatures?
DESPERATE WILL GIVE BRAINLIST and thanks
Radiometric dating is a form of relative dating.
Question 4 options:
True
False
Answer: True
Explanation:
(i hope this helps sorry kinda late but i did not see any answers)but can i have brainlist
Define potential energy. Give its mathematical formula and SI unit.
Answer:
The type of mechanical energy that is possessed due to the virtue of motion or state of a body is known as potential energy.
Its formula: PE= mgh
Its SI unit is joule.
Hope it helps you..
A Viking ship roller coaster at the fair has a mass of 36,000 kg. If at its peak it reaches a height of 20 m off the ground, how much gravitational potential energy does it have?
Answer:
7056 kJ
Explanation:
Given that,
Mass of a ship roller coaster is 36,000 kg.
It reaches a height of 20 m off the ground
We need to find the gravitational potential energy does it have. The formula for the gravitational potential energy ios given by :
E = mgh
g is acceleration due to gravity
E = 36,000 kg × 9.8 m/s² × 20 m
= 7056000 J
or
E = 7056 kJ
So, it will have 7056 kJ of gravitational potential energy.
A ball strikes a wall. It exerts a force of 10 N to the left against the wall and bounces off. What force does the wall exert on the ball? 10 N to the left 10 N to the right more than 10 N to the left more than 10 N to the right
Given :
A ball strikes a wall. It exerts a force of 10 N to the left against the wall and bounces off.
To Find :
What force does the wall exert on the ball.
Solution :
We know, by third law of motion "every motion has equal and opposite reaction".
Ball exert a force of 10 N to the left against the wall.
So, by newton's third law of motion :
Wall will exert same force of 10 N in opposite direction i.e in right direction.
Therefore, force does the wall exert on the ball is 10 N to the right.
Hence, this is the required solution.
Answer:
10 N to the right
Explanation:
edge 2021
part 1 of 2
Bill kicks a rock off the top of his apartment
building. It strikes a window across the street
18 m away.
The acceleration of gravity is 9.8 m/s?.
If the window is 19 m below the position
where Bill contacted the rock, how long was
it in the air?
Answer in units of s.
part 2 of 2
How fast was it moving when it left Bill's
foot?
Answer in units of m/s.
Answer:
I got you.. i'm in middle school and had that same question.
Explanation:
Refer to the diagram shown below.
The vertical distance traveled is
s = 25 m
The initial vertical launch velocity is zero.
Therefore
s = (1/2)*g*t²
where g = 9.8 m/s²
t = the time of flight, s
That is,
0.5*9.8*t² = 25
t² = 25/4.9 = 5.102
t = 2.26 s
Answer: 2.26 s
A car runs along a horizontal path at speed of 20m/s.The driver observes the rain hitting his car at 60 to vertical.If rain is actually falling vertically then what is speed of rain drop
Answer:
The speed of the raindrop is 11.55 m/s.
Explanation:
We need to find the speed of the rain in the "y" direction. We have:
[tex]v_{r}[/tex]: speed of the raindrop at 60° (vertical) =?
[tex]v_{c}[/tex]: speed of the car = 20 m/s (in the "x" direction)
Hence, the speed of the car and the speed of the raindrop are related by:
[tex]tan(\theta) = \frac{v_{c}}{v_{r}}[/tex]
[tex] v_{r} = \frac{v_{c}}{tan(60)} = \frac{20}{tan(60)} = 11.55 m/s [/tex]
Therefore, the speed of the raindrop is 11.55 m/s.
I hope it helps you!
According to the question,
Speed of car, [tex]v_c = 20 \ m/s[/tex]Let,
The speed of rain be "y".As we know the formula,
→ [tex]tan (\Theta) = \frac{v_c}{v_r}[/tex]
or,
→ [tex]v_r = \frac{v_c}{tan (60)}[/tex]
By putting the values, we get
[tex]= \frac{20}{tan (60)}[/tex]
[tex]= 11.55 \ m/s[/tex]
Thus the above answer is right.
Learn more about speed here:
https://brainly.com/question/18076916
the inertial mass of an object is measured by exerting a force on the object and measuring the object's BLANK using an inertial balance
Answer:
acceleration
sorry i answered late
While in a car at 4.47 meters per second a passenger drops a ball from a height of 0.70 meters above the top of a bucket how far in front of the bucket should the passenger drop the ball such that the ball will land in the bucket?
Answer:
1.7 m
Explanation:
[tex]v_x[/tex] = Velocity of ball in x direction = 4.47 m/s
[tex]u_y[/tex] = Velocity of ball in y direction = 0
g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]
t = Time taken
[tex]s_y[/tex] = Vertical displacement = 0.7 m
[tex]s_y=u_yt+\dfrac{1}{2}gt^2\\\Rightarrow 0.7=0+\dfrac{1}{2}\times 9.81t^2\\\Rightarrow t=\sqrt{\dfrac{0.7\times 2}{9.81}}\\\Rightarrow t=0.38\ \text{s}[/tex]
Horizontal displacement is given by
[tex]s_x=v_xt\\\Rightarrow s_x=4.47\times 0.38\\\Rightarrow s_x=1.7\ \text{m}[/tex]
The passenger should throw the ball 1.7 m in front of the bucket.
A horse accelerates from rest for 1 s and covers a distance D. If instead the accelerates from rest with the same accelerations for 2 s will the distance it covers be equal to 2D, 4D, or 9D
Answer:
4D
Explanation:
We will use 2nd equation of motion in this question:
s = Vi t + (0.5)gt²
where,
s = distance covered
t = time taken
g = acceleration due to gravity
For t = 1 s:
s = D
Therefore,
D = (0 m/s)(1 s) + (0.5)g(1 s)²
D = 0.5g -------------- equation (1)
For t = 2 s:
s = D
Therefore,
s = (0 m/s)(1 s) + (0.5)g(2 s)²
s = 0.5g(4)
using equation (1):
s = 4D
therefore, correct answer is:
4D
Just like Coke is a type of soda, __________ is a type of ___________.
A.concentration,.equilibrium
B..equilibrium, concentration
C.diffusion, osmosis
D.osmosis. diffusion
Answer:
osmosis diffusionExplanation:
ok it's correct
The Hindus in India were the first use
as a placeholder. .
O letters
zero
O calculus
scientific theories
Newton is derived unit why
Answer:
Newton is derived unit
Explanation:
Because it depends upon three fundamental units i.e kg,m and s
Hope it helps you.
A B-52 bomber jet flies at a horizontal velocity of 286.2 m/s and at an altitude of 7500 m above the ground.
How far away horizontally should a payload be dropped to land on a target?
Answer:
you need to divide 7500/286.2
has an atomic number of 1
Answer:
The element H (Hydrogen) has an atomic number of 1.
Answer:
1 = H = Hydrogen
Energy; Resources and Forms
how do you measure joules ?
Answer:
joules = newtons x meters
Explanation:
Work is equal to the force that is exerted, multiplied by the distance over which it is exerted.
In equation form:
joules (work) = newtons (force) x meters (distance) ,
A joule is the unit of work.
Hope this helped!! :)
Just two questions please answer.physics wave