Answer:
Explanation:
The formula for the x-components of the velocity vector is
[tex]V_x=Vcos\theta[/tex] and for the y-components it is
[tex]V_y=Vsin\theta[/tex] where V in both of those formulas is the magnitude of the velocity.
For the x-component, taking into consideration significant digits:
[tex]V_x=15.5cos(78)\\V_x=3.2\frac{m}{s}[/tex]
For the y-component, taking into consideration significant digits:
[tex]V_y=15.5sin(78)\\V_y=15\frac{m}{s}[/tex]
As more information is found, some scientific theories are adapted and others are discarded. Because science can adapt to account for new information, it has proved durable over time.
For which claim does this statement provide evidence?
(1 point)
O A strength of science is that its theories are easily derived.
O A strength of science is that it supports one explanation over others.
O A strength of science is that it provides consistent explanations
O A strength of science is that its theories are tested.
Answer:
A strength of science is that it's theories are tested
In a model of the solar system that was about as large as a college campus how large would the Sun be?
About the size of a basketball.
About the size of a marble.
About the size of a softball.
About the size of a small car
What topic name does this equation go into in physics?[tex]A_{x} = A cos\theta[/tex]
Answer:
Trigonometry
Explanation:
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
What topic name does this equation go into in physics?[tex]A_{x} = A cos\theta[/tex][tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \huge \boxed{\sf \: A_{x} = A cos\theta}[/tex]
So, I think this equation will go under Types of Physical quantities, Vector Quantities, Magnitude, Direction, etc. under physics & Trigonometry under Mathematics.This formula is used when we need to find the 'x' component of the vector. You need to know basic trigonometry to solve these type of equations & also how to convert between magnitude & angles.The microwave portion of the spectrum has wavelengths ranging from 1 mm to 1 m. Find the corresponding frequencies. g
Answer:
f = c / y where y is the wavelength
f1 = 3 *10E8 m/s / .001 m = 3 * 10E11 / s
f2 = 3 * 10E8 m/s / 1 m = 3 * 10E8 / s
Convert the following statement to the language used by physicists, "I am cold, please turn on the heat."
Answer:
Explanation:fog
Closure: Jenga's Pizza Delivery
A pizza delivery guy will travel 17km to the first house, 13km to the second house, 137km to the 3rd
house. Would he want to get paid by KM of distance traveled or kilometer of displacement
traveled? “He would want to be paid by..."
Answer:
distance traveled
Explanation:
Assuming he ends where he started, his displacement is zero, while his distance traveled is 17 +13 +137 = 167 km. He would want to be paid by distance traveled.
The fastest and longest skydive fell an amazing 19.5 miles. His average speed while falling was 254 mi/hr. How much time did the dive last? Show Work
We have that the time the dive lasted was
[tex]T=0.076771 hours[/tex]
From the Question we are told that
Fall distance 19.5 miles
Velocity v= 254 mi/hr
Generally the equation for the Time is mathematically given as
[tex]T=\frac{v}{d}\\\\T=\frac{19.5}{254}[/tex]
[tex]T=0.076771 hours[/tex]
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2 Examples of Gravitational Potential Energy
Answer:
Examples of items with gravitational potential energy include:
A raised weight
Water that is behind a dam
A car that is parked at the top of a hill
A yoyo before it is released
River water at the top of a waterfall
A book on a table before it falls
A child at the top of a slide
Ripe fruit before it falls
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what conditions might a cause scientist to modify or revise a hypothesis
Answer:
scientists might modify or revise a hypothesis after a trial run that didn't go how they thought.
A rock is thrown downward from the top of a cliff with an initial speed of 20 m/s. If the rock hits the ground after 5.0 s, what is the height of the cliff? (Disregard air resistance. a =-g=-9.81 m/s2.)
（i want step by step)
Answer
I hope it's helps you
Eating a banana enables s person to perform about 4×10⁴ J of work. To what vertical height does eating a banana enable a 50kg woman to climb?(g=10m/s²)
Answer:
80m
Explanation:
potential energy = MGH
p.e = 50 X 10 X h
4x10⁴ = 500 X h
h = 4x10⁴/500
h = 80m
The woman is enable to climb 80m after eating a banana.
What is gravitational potential energy?The energy that an item has or acquires when its location changes as a result of being in a gravitational field is known as gravitational potential energy. Gravitational potential energy can be defined as an energy that has a connection to gravitational force or gravity.
Given parameters:
Eating a banana enables s person to perform about 4×10⁴ J of work.
Mass of the woman; m = 50 kg.
Acceleration due to gravity; g = 9.8 m/s².
Let she can climb a vertical height of h after eating a banana.
At height h; her gravitational potential energy: E = mgh
From conservation of energy,
her gravitational potential energy = 4×10⁴ J
⇒ 50 X 10 X h = 4×10⁴
⇒ h = 4x10⁴/500
⇒ h = 80m
Hence, she can climb 80m vertical height.
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How does the direction of the force affect the direction of an object will travel?
it is car because it is away to travel
For a company to develop an effective customer-centric culture, there is always room for:
A. Larger product research and development investment
B. Improvement
C. More customers
D. More accurate market research
What is the kinetic energy of a 0.5 kg soccer ball that is traveling at a
velocity of 3 m/s?
What’s the answer
Answer:
kinetic energy = 1/2mv²
k.E =1/2 X 0.5 X 3²
k.e = 9/4
K.E = 2.25j
If you are given a graph with two shiftable lines, the correct answer will always require you to move both lines.
The correct answer of a graph with shiftable lines will not require you to move both or any lines.
When the lines of a graph is shifted, the new line will have a new equation different from the original or previous line.
This means that you do not have to move the lines of the graph before getting the correct answer.
In all cases, the point of intersection of the two lines is the solution to the graph.
However, if the two lines do not intersect, then the graph does not have a solution.
So, the correct answer of a graph with shiftable lines will not require you to move both or any lines.
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An objects weight w is equal to the product of its mass and the acceleration due
to gravity. On Earth, this value is g = 9.8 m/s^2. If something weighs 400 N,
what is its mass?
Answer:hinwjdheiohuddwrr
87u7t
what is work - energy theorem ??
The work-energy theorem explains the idea that the net work - the total work done by all the forces combined - done on an object is equal to the change in the kinetic energy of the object. After the net force is removed (no more work is being done) the object's total energy is altered as a result of the work that was done.
This idea is expressed in the following equation:
is the total work done
is the change in kinetic energy
is the final kinetic energy
is the initial kinetic energy
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Which of the following is certain to change as a ball
accelerates?
A mass of the ball
B inertia of the ball
C velocity of the ball
Dforce acting on the ball occasionally
Answer:
C. Velocity of the ball
Explanation:
This is because as the acceleration of the ball increases, there will be an increase in the velocity rate and decrease in the time.
See the formula,
a=m/s²
I NEED THE ANSWER TO PASS SO I CAN GET MY PHONE BACK HELPPPPPPPPPPPPPP
Answer:
it would be c.
Explanation:
starts at zero and isn't a straight shot up
an energy transformation flow diagram is shown what type of energy does X most likely represent
X represent the wind energy that converted to electrical energy
Báo cáo thực hành
Bài 1: Sóng trên dây: https://phet.colorado.edu/vi/simulation/wave-on-a-string
Bài 2: Cầu cân bằng: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab_vi.html
Answer:
which language is this
Explanation:
4. A car slows down from 36 km.h to stop in 25 s. 4.1 Define "acceleration”. 4.2 Convert 36 km:h-' to m's-1.
1. Acceleration is the change in velocity of an object per unit time.
2. 36 km/h
= 36000 m/60×60 s
= 36000 m/3600 s
= 10 m/s
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A submarine deep underwater releases a bubble of air. The total pressure at this depth is P. The bubble has diameter, D, and absolute temperature, T. As the bubble rises, it expands. When it reaches a certain smaller depth, where the total pressure is 0.22P, it has absolute temperature 1.17. In terms of D, what is the diameter of the bubble at this depth? You may assume that no air leaves the bubble, and that the air behaves as an ideal gas.
Answer:
P V = n R T ideal gas equation
P2 V2 / P1 V1 = T2 / T1
V2 / V1 = T2 / T1 * P1 / P2 = T2 P1 / (T1 P2)
V2 / V1 = (1.17 T1) / T1 * (P1 / .22 P1) assuming absolute temp as 1.17 P1
V2 / V1 = 1.17 / .22 = 5.32
V = 4/3 pi R^3 = 4/3 pi (D/2)^3 = 4/3 pi D^3 / 8 = pi D^3 / 6
V2 / V1 = D2^3 / D1^3
D2 = (V2 / V1 * D1^3)^1/3
D2 = 5.32^1/3 * D = 1.75 D (D1 = D)
If Scoobie could drive a Jetson's flying car at a constant speed of 160.0 km/hr across oceans and space, approximately how long would Scoobie take to drive around Earth's equator in days
If Scobie could drive a Jetson's flying car at a constant speed of 160.0 km/hr across oceans and space, approximately how long would Scoobie take to drive around Earth's equator in days
Scobie will take 10 days to drive around Earth's equator.
To calculate the time that takes Scobie to drive around Earth's equator we need to find the distance, which is given by the equation of a circumference:
[tex] d = 2\pi r [/tex]
Where:
r: is the Earth's radius = 6371 km
Then, the distance is:
[tex] d = 2\pi r = 2\pi*6371 km = 40030.2 km [/tex]
Now, if we divide the above distance by the speed of the car we can find the time:
[tex] t = \frac{d}{v} = \frac{40030.2 km}{160.0 km/h} = 250.2 h*\frac{1 d}{24 h} = 10 d [/tex]
Therefore, Scobie will take 10 days to drive around Earth's equator.
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what type of welding equipment is commonly used in automotive shops?
Answer:The most common welding methods for automotive jobs include resistance metal inert gas (MIG) welding, plasma arc welding (PAW) and tungsten inert gas (TIG) welding. Learn more about MIG Welding and Other Common Welding Types.
There are various type of welding equipment that are commonly used in automotive shops.the most common form of welding used for automobiles are tungsten inert gas welding (TIG),metal inert gas welding(MIG) and shielded metal arc welding.
What is Shielded Metal Arc Welding (SMAW)?It is a type of manual arc welding process which utilizes a consumable electrode covered with flux to protect the weld bead.For SMAW either direct current or alternating current can be used to form the electric arc. The electrode melts and forms a molten weld pool with the base metal by using the thermal energy produced from the electric arc.The weld bead in Shielded metal Arc Welding is formed by the electrode wire core mixing with the molten base metal.
Auto body specialists perform structural repairs on a range of cars and equipment using a variety of automotive welding techniques. They might also create a metal part to enhance an existing building. The most popular welding techniques for automotive projects are tungsten inert gas (TIG), plasma arc, and resistance metal inert gas (MIG) welding.
Thus,There are various type of welding equipment that are commonly used in automotive shops such as Auto-Darkening Welding Helmet Welding Gloves, MIG Welding Pliers, Welding Magnets, Chipping Hammer,Welding,Framing Jig,Metal Brush,Angle Grinder,Metal File,Welding Boots,Safety Glasses and MIG Welding Nozzle Gel.
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plz help me with this question
Explanation:
Here,
initial velocity(u)=25m/s
final velocity (v)=0m/s
time taken(t)= 5 second
Now,
Yo someone help me on dis jawnt rq plzzz!
Answer:
the answer is 45.6 kg = 45600 g
a 24kg remote control car travels 7 meters in 3 seconds. calculate the car's momentum
Answer:
Explanation:
ASSUMING that velocity is constant during the 3 seconds,
or that we are satisfied with AVERAGE momentum
p = mv = 24(7/3) = 56 kg•m/s
what is heroism???
plz answer
Answer:
heroism is great bravery..
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