Answer:
chemical energy to electrical energy to sound energy to heat energy
Answer:
chemical energy to electrical energy to sound energy to heat energy
Explanation:
The parking brake on a 1200kg automobile has broken, and the vehicle has reached a momentum of 7800kg.M/s. What is the velocity of the vehicle?
Why are temperatures of the currents generally colder at the poles than the equator?
A. Tilt of the Earth on its axis
B. Angle of the sun's rays are less direct
C. Angle of the sun's rays are more direct
D. The Earth's revolution around the sun.
Answer:
the answer is A
Explanation:
I NEED HELP ASAP!!!
The product of the component of a force along the direction of displacement and the magnitude of the displacement are known as:
a.
net force
c.
velocity
b.
work
d.
power
Answer:
a
Explanation:
thats yes according to kinematics
What is the momentum of a 4000g object moving to the left (negative direction) at 25 m/s?
Answer:
-100 kg · m/s
Explanation:
We can find the momentum of an object using the formula:
p = mv where p = momentum (kg * m/s), m = mass (kg), v = velocity (m/s), and p and v are vectorsLet's start by converting the mass of the object to kilograms.
4000 g → 4 kgSince the left direction is the negative direction, we know that the velocity of the object is -25 m/s.
Using these variables, we can solve for p in the formula.
p = mv p = (4 kg)(-25 m/s) p = -100 kg · m/sThe momentum of the object is -100 kg · m/s.
What is the momentum of a 0.5 kg football thrown -5 m/s to the left?
Answer: -2.5 kg/m/s
Explanation: Momentum is equal to mass times velocity, so you do 0.5 kg times -5 m/s, and you get -2.5 kg/m/s.
How do you find component velocities of parallel vectors?
Answer:
Velocity is a vector (it has magnitude and direction), so the overall velocity of an object can be found with vector addition of the x and y components: v2 = vx2 + vy2. The units to express the horizontal and vertical distances are meters (m).
Water uptake to the atmosphere occurs through the processes of evaporation and transpiration from plants where it condenses to form clouds. Clouds release the water through precipitation. During a summer of extreme drought, what can we expect to happen to the surface groundwater stored in ponds and lakes?
a. Water levels will increase because there is more precipitation
b. Animals won't drink as much to save water, so water levels remain the same
c. Water levels will increase because there are more evaporation and transpiration
d. Water levels will decrease because there are more evaporation and transpiration
water level will decrease because there are more evaporation and transpiration
M= 1000 g g= 10 m/s2 h= 10 K.E at GROUND = 400 j M.E = ....... ........J the answer is 400 so plz explain how
Answer:
M = 500 J
Explanation:
Given that,
Mass, M = 1000 g = 1 kg
Height, h = 10 m
Potential energy is given by :
P = mgh
P = 1×10×10
P = 100 J
The kinetic energy at ground = 400 J
Mechanical energy = sum of kinetic and potential energy
So,
M = 100 + 400
M = 500 J
So, the mechanical energy of the system is 500 J.
what is called the phenomenon of prolongation of sound
Answer:
It is called reverberation.
Explanation:
The phenomenon of prolongation of sound is the process in which sound produced is reflected from plane surfaces in a continuous manner, which leads to reverberation of sound waves. It can also be referred to as a condition of continuous echo production.
It occurs when sound produced get reflected from a hard plane surface, and in the process hits another surface and another reflection occurs. This continuous reflection leads to prolongation of sound.
The sound produced is heard for some specific period of time before it dies down or get absorbed finally.
Can someone proofread this plz? I put my answers next to the number, so all I need you to do is proofread it. the picture for number 5 is pinned below.
Question 1 (1 point) A
Saved
Waves transfer energy through matter or space.
Question 1 options:
True
False
Question 2 (1 point) A
Saved
Mechanical waves can travel only though a _______________ such as a solid, liquid, or gas.
Question 2 options:
medium
vacuum
prism
anemometer
Question 3 (1 point) B
Saved
Which of the following is not a type of mechanical wave?
Question 3 options:
transverse
concave
surface
longitudinal
Question 4 (1 point) C
Saved
The particles in this wave move perpendicular to the direction of the movement of the wave. These waves are snake like.
Question 4 options:
surface
transverse
longitudinal
cyclone
Question 5 (1 point) A
Saved
The arrow points to an example of
Wave
Question 5 options:
rarefaction
sound barrier
compression
prism
Question 6 (6 points) 5,1,4,3,2,6
Saved
Match each term to its definition
Question 6 options:
answer here ___
Higher the pitch
answer here___
top of the wave
answer here___
Louder
answer here___
Distance from crest to crest
answer here___
bottom of the wave
answer here___
Height of wave
1.
Crest
2.
Trough
3.
Wave length
4.
Amplitude
5.
Higher the frequency
6.
Higher the Amplitude
Question 7 (1 point)
What is the resulting direction of a surface wave?
Question 7 options: C
opposite
circular
perpendicular
parallel
Question 8 (1 point) C
Constructive interference occurs when the crest of 2 waves meet. This can occur when 2 troughs meet as well. When this occurs, water waves look
Question 8 options:
larger
invisible
smaller
the same (no change)
Question 9 (1 point) C
Saved
Water waves are surface waves. The energy of the waves moves
Question 9 options:
both parallel and perpendicular to the wave
only parallel to the motion of the wave
only perpendicular to the motion of the wave
Question 10 (1 point) A
Which molecule makes up 3/4s of the surface of Earth?
Question 10 options:
CO2
NaCl
H2O
C6H12O6
Question 11 (1 point) A
Saved
Water does not expand when it freezes.
Question 11 options:
True
False
Question 12 (7 points) 3,4,1,2,7,6,5
Saved
Match the clue with correct answer
Question 12 options:
3
1
4
tributaries
1
estuary
2
6
7
chloroplast
6
3
5
nucleus
1.
Small rivers that flow into larger rivers
2.
Number of states that drain into Chesapeake Bay
3.
The Chesapeake Bay Watershed ranks what place in the US in terms of estuary size
4.
A body of water containing salt and fresh water.
5.
control center of cell
6.
The Cell Theory has how many statements?
7.
The site of photosynthesis
Question 13 (1 point) D
Saved
What do eukaryotes have that prokaryotes don't?
Question 13 options:
ribosomes
cytoplasm
plasma/cell membrane
nucleus
Question 14 (1 point) 1,4,3,5,2
Saved
Arrange in order from smallest to largest
Question 14 options:
1
cell
4
organ system
3
organ
5
organism
2
tissue
Answer:
i do believe you got them all right
good job :)
good luck :)
i hope this helps
have a great day !!
Answer:
._.
Explanation:
HELP MY GRADES-
question: If you see a lightning flash, and you hear the thunderclap one second later, how far away is that lightning?
DO NOW: You are picking up a pendulum (Clay ball on a string) as you pull the pendulum up on one side and let it fall, what types of energy are being used?
Answer:
The energy used in the pendulum is the initial Potential (Mechanical) Energy, P.E. given to the Clay ball attached to the inclined and extended string by virtue of its elevated position in relation to the rest position (lower state)
The swinging of the pendulum is brought about by the dynamic equilibrium between the initial potential energy, P.E. and the Kinetic Energy, K.E., of the pendulum when it is in motion
The (total) Mechanical Energy, M.E. of the ideal pendulum is constant at all times during the motion of the pendulum and it is given by the following formula;
M.E. = P.E. + K.E.
At the top of the swing, P.E. is maximum and K.E. is zero
Similarly, at the mid (lowest) point in the swing, instantaneously, P.E. is zero and K.E. is maximum
Explanation:
A healthy breakfast should include foods from the Grains group, the Vegetables OR Fruits group, and the Dairy OR the Protein group. * O True O False
Answer:
vry true
Explanation:
yes because ll thoes give you protien sorry for my bad spelling
Answer:
True
I Had this before
formula of average speed
Answer:
Hey mate....
Explanation:
This is ur answer.....
Hope it helps!
Mark me brainliest....
FOLLOW ME!!! :)
the mass of the earth is 6 × 10²² kg and that of the moon is 7.4× 10²² Kg if the distance between the earth and moon is 3.84 × 10⁵ km . calculate the force of the earth exerted by it on the moon . Take G = 6.67×10¹¹ Nm² / kg²
Answer:
Force = 20.08 x 10⁴⁷ N
Explanation:
Given:
M1 = 6 × 10²⁴ kg (rectified)
M2 = 7.4× 10²² Kg
Radius r = 3.84 × 10⁵ km
G = 6.67×10¹¹ Nm² / kg²
Find:
Force
Computation:
F = GM1M2 / r²
Force = [(6 × 10²⁴)(7.4× 10²²)(6.67×10¹¹ )] / (3.84 × 10⁵)²
Force = [296.148 × 10⁵⁷] / [14.7456 × 10¹⁰]
Force = 20.08 x 10⁴⁷ N
The string at the right is 6.0 meters long and is vibrating as the third harmonic. The string vibrates up and down with 45 cycles in 10 seconds.
Determine the frequency, period, wavelength, and speed for this wave
Answer:
L = 6 m n = 3 f = 45/10 = 4.5 Hz → T = 1/f = 0.22 s
wavelength = 2L/n = 2×6÷3= 4 m
speed(v) = wavelength × f = 4×4.5 = 18 m/s
Explanation:
second solution for frequency:
f= speed(v) / wavelength = nv/2L = 3×18÷(2×6) = 4.5 Hz
Guys I need help on this
Answer:
I think its B.
Explanation:
Delilah does 170 Joules of work in 30 seconds. Adam does 260 Joules of work in 20 seconds. Who was more powerful?
Power = [tex]\frac{Work}{Time}[/tex]
Delilah: 170J/30s = 5.66 W
Adam: 260J/20s = 13 W
Can anyone tell me why I got this wrong?
Two children are fighting over a 2 kg toy. One child pulls right with a 5 N force and another pulls left with a 7.5 N force. How long will it take the toy to reach a speed of 1.0 m/s in this “tug of war”?
my answer = 1.25 s
Answer:
0.8sec
Explanation:
Σf= 7.5-5= 2.5 N to the left
Σf=m*a=>2.5=2a=>a=1.25 m/s²
Lets say that the speed is 1m/s
a=speed-0/x=>x=1/1.25=>x=0.8
Hence the time will be 0.8sec
Does gravity affect kenetic energy
Answer:
Yep.
Explanation:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. Gravity will pull the object down. So yes, gravity affects kinetic energy.
Answer:
Kinetic energy is energy an object has because of its motion. A ball held in the air, for example, has gravitational potential energy. If released, as the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy.
Explanation:
An object of mass 150 kg accelerates from a velocity of 5m/s to a velocity of 10m/s in the same direction. What is the impulse provided to cause this acceleration?
Answer:
If it accelerated from 5 to 10 in one second then we know that acceleration is final (velocity-initial velocity)/
time
this gives (10-5)/1
=5m/s^2
force = mass x acceleration so = 150 x 5
this gives us a force of 750N
impulse is force x time so = 750 x 1
this tells us the impulse is 750 N.s
All of this is assuming it accelerated to 10m/s in one second.
The definition of impulse allows to find the impulse response for the acceleration of the body is:
The impluse in acceleration direction is: I = 750 N s
Given parameters
Body mass m 150 kg The initial velocity vo = 5 m / s The final velocity vf = 10 m / sTo find
Impulse
The impulse is the change of the momentum of a body, it is a vector quantity
I = ∫ F. dt = Δp
Where the bold indicate vectors, I is the momentum, F the force, t the time, Δp the change in moment
The momentum is defined as the product of the mass of the body and its speed.
p = m v
We substitute in the expression of impulse
I = [tex]m v_f - m v_o[/tex]
Let's calculate.
I = 150 (10 -5)
I = 750 N s
In the direction of acceleration.
In conclusion using the definite of impulse we can find the impulse response for the acceleration of the body is:
The impluse in acceleration direction is: I = 750 N s
Learn more here: brainly.com/question/15652768
laser light has a great deal of______ a. chemical b. heat c. potential d. sound energy.??
Answer:
b. heat
Explanation:
Laser light has a great deal of heat energy. The correct option is B.
What is laser light?A laser is a device that emits light via an optical amplification process that is based on the stimulated emission of electromagnetic radiation. Light amplification by stimulated emission of radiation is an acronym for the term.
A laser generates a very narrow beam of light that can be used in a variety of technologies and instruments. Laser is an acronym that stands for Light Amplification by Stimulated Emission of Radiation.
The radiation coming from the laser light has a large amount of heat due to the presence of the electrons streamed in the form of an electromagnetic wave.
To know more about laser light follow
https://brainly.com/question/27857432
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A tractor pulls a 978 kg wagon at a velocity of 4.9 m/s. How many watts of power are exerted by the tractor motor is the tractor pulls the wagon at a 60 degree angle?
Answer:
23481.78 W
Explanation:
The computation of number of watts of power is shown below:
M = 978 kg
V = 4.9 m/s
Theeta = 60°
As we know that
P = Fcos(theeta).V
F = Mg
P = (Mg)cos(theeta).V
P = 978×9.8×cos(60)×4.9
P = 23481.78 W
If the wheel then slows to rest in 9.46 s while making a quarter turn, calculate the magnitude of its average angular speed during that time.
Answer:
0.16 rad /s
Explanation:
Given that :
Time, t = 9.46 s
Quarter turn = 1/4 rev
θ = wt
w = angular speed `. ; t = time in second
1 rev = 2 pi
θ = 2pi
1/4 θ = 1/4 * 2pi = pi/2
θ = wt
pi/2 = w * 9.62
3.14 = w * 9.62 * 2
3.14 = 19.24w
w = 3.14 / 19.24
w = 0.1602040
w = 0.16 rad /s
What acceleration can a 1-newton force give to a 1-kilogram object?
Answer: 1 m/s/s
Explanation: One Newton is defined as the amount of force required to give a 1-kg mass an acceleration of 1 m/s/s.
Miles Tugo is camping in Glacier Canyon and he makes a loud holler. The sound bounces off the nearest canyon wall (which is located 170 meters away from Miles) and returns to Miles.
Determine the time elapsed between when Miles makes the holler and the echo is heard.
Answer:
It would take 1 s to hear the echo.
Explanation:
Here, the sound covered a total of 340 meters, since it bounces off the canyon wall and travels back to Miles in the form of echo.
The time elapsed can be determined by,
v = [tex]\frac{2D}{t}[/tex]
⇒ t = [tex]\frac{2D}{v}[/tex]
where: v is the speed of sound in air (343 m/s), D is the distance of the nearest canyon (170 m).
So that,
2D = 2 x 170 = 340 m
Thus,
t = [tex]\frac{340}{343}[/tex]
= 0.9913 s
t = 1 s
It takes 1s for Miles to hear his echo.
Help what is the answer pls
How many oxygen (O) atoms are in a molecule of SiO2?
O A. 1
OB. 3
C. 4
D. 2
A car can move from rest to 35 m/s in 5.0 seconds. It's acceleration is
a. 7.0 m/s^2
b. 5.0 m/s^2
c. 4.0 m/s^2
d. 175 m/s^2
Answer:
A) 7.0 m/s²
Explanation:
Acceleration is found by using the formula:
a = Δv/ΔtThis means the change in time divided by the time interval will give us the car's acceleration.
Since the car starts from rest, its initial velocity is 0 m/s. Its final velocity is 35 m/s. The time interval for the car to go from 0 to 35 m/s is 5.0 seconds.
a = (v - v₀)/tSubstitute the final and initial velocity into the formula.
a = (35 - 0)/5 a = 35/5a = 7The acceleration of the car is A) 7.0 m/s².
pls help
What graph indicates no reference to direction of motion, and explain why.
Answer:
graph A
Explanation:
the slope of the distance-time graph is speed, speed is a scalar (with magnitudes but no direction)
but the slope for the velocity time graph is acceleration, acceleration is vector quantity ( has magnitude and direction)