Answer:
False
Explanation:
Answer: False
Explanation:
correct on edge✅
A car has travelled 450 km in 35 hours. Calculate its velocity.
Its average speed is 12.86 km/hr.
There's not enough information to determine its velocity.
8.92 x 10 ^ 6 (convert from scientific notation to a standard aka regular number)
An egg is drown at a wall and breaks. A second egg is thrown at the same velocity and collides with a bed sheet. The egg does not break. Why does the egg not break when it hits the sheet?
Answer:
The first egg is thrown at a wall and breaks because it has no time to decelerate and it breaks.
While, when a second egg is thrown at wall with same velocity and collides with a bed sheet, it does not break because it get more time to decelerate or collide with the wall. It reduces the amount of force exerted on the egg and it does not break.
In handball, who is the only player allowed in the goalie area?
Answer:
Only the goalie is allowed inside the goal crease. The only exception when another player is allowed in the goal area is when they take off from outside the goal area, and shoots or passes the ball before landing. To avoid interference with other players, the player must then exit the goal area as soon as possible.
Explanation:
Which option best describes electromagnetic waves that have enough energy to change atoms or molecules into ions?
A. Waves with low frequency
B. Ionizing radiation
C. Waves with long wavelength
D. Non-ionizing radiation
Answer:
B.Ionizing radiation is the correct answer.
Explanation:
Ionizing radiation has sufficient energy that it can convert atoms and molecules into ions.
It has a sufficient amount of energy that it can separate tightly confined electrons from the orbit of an atom and causing that atom to become ionized.
Answer: lonizing radiation
Explanation:
Got it right
how much work does a 60kg person do in walking up 5m of stairs
Answer:
If I’m correct 300 joules
Explanation:
Please help thanks
Most wind erosion is caused by _____.
1. saltation
2. abrasion
3. traction
4. plucking
Can a solution be separated by filtration?
Answer:
Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )
Explanation:
Listo!
what are the factors that affect orbital velocity
Answer:
the mass of the central body (earth) and the radius of the orbit affect orbital velocity
Explanation:
SHOW WORK
A 3 kg object attached to a spring oscillates with an amplitude of 15 cm and a period of 2s. At a time t=0.5s, the object's position is x=9.1 cm.
Determine...
a) the spring constant of the spring.
b) the total energy of the system (in joules).
c) the maximum speed of the object.
d) the position of the object as a function of time. Use a cosine function.
Answer:
Follows are the solution to the given question:
Explanation:
For point a:
[tex]T= 2\pi \sqrt{\frac{m}{k}}\\\\k = \frac{4 \pi^2 m}{T^2}\\\\= \frac{4 \times (3.14)^2 \times 3}{2^2}\\\\=29.578 \ \frac{N}{m}\\\\[/tex]
For Point b:
[tex]E=\frac{1}{2} m a^2 w^2\\\\[/tex]
[tex]=\frac{1}{2} \times m \times a^2 \times \frac{4\pi^2}{T^2}\\\\=\frac{1}{2} \times 3 \times (0.15)^2 \times \frac{4\times 3.14^2}{2^2}\\\\=0.332 \ J[/tex]
For Point C:
[tex]V_{max}= a w[/tex]
[tex]= (0.15) \times \frac{2\pi}{T}\\\\= (0.15) \times \frac{2\times 3.14}{2}\\\\=0.471 \frac{m}{s}[/tex]
For point D:
[tex]X= a \sin (wt+ \phi)\\\\0.91=0.15 \sin(\frac{2\pi}{T} \times t+\phi)\\\\0.91=0.15 \sin(\frac{2\times 3.14}{2} \times 0.5+\phi)\\\\0.60 = \sin(3.14 \times 0.5+\phi)\\\\0.60 = \sin(1.57+\phi)\\\\1.57 +\phi =\sin^{-1} 60^{\circ}\\\\1.57 +\phi = 36.86^{\circ}\\\\=35.29^{\circ}\\\\So, X=15 \sin(3.14t+35.29^{\circ}) \ cm[/tex]
A 0.015 kg marble sliding to the right at 22.5 m / s on a frictionless surface causes an elastic frontal collision with a 0.018 kg marble moving to the left at 18 m / s. After the collision, the first marble moves to the left at 18 m / s. Find the speed of the second marble after the collision.
Answer:
I don't know the answer.
Explanation:
Im not smart <3
Please answer it due to night you!!!!!
You will be a the brainlist
What is Energy, Work and Power 2. Give an example of each (Energy, Work and Power)
Answer:
Energy:Energy is defined as the ability to do work.Example:Light energy,heat energy etc
Work:When force is applied on an object and it dispaces in the direction of that force then it is said that work has done.Its SI unit is joule
Power:Power is defined as the ratio of work done to the total time.Its SI unit is watt
How much work does a horse do while moving a wagon 15 meters with a pulling force of 100N?
Answer:
the answer is 1500 you multiply the distance and force to get work
I need help ASAPP
Thanks+ BRAINLIST only for correct answer for these questions.
Which among the following forms of electromagnetic waves has the highest frequency range?
O Microwave
O Radio waves
O X-ray
O Ultraviolet
Radio waves carry information from a broadcasting station to your radio or television.
-visible light
- sound
-X -ray
- gamma ray
Answer:
First) X-ray
Second) I think sound waves
Explanation:
How far could you speed walk in 10 minutes? Use your speed from the 20m test to calculate the answer.
my speed is 13.63.
Answer:
Explanation:
Given parameters:
Time for speed walking = 10min
Speed = 13.63?
Unknown:
Distance you can speed walk = ?
Solution:
To solve this problem, we simply apply the velocity - time equation;
Speed = [tex]\frac{distance}{time}[/tex]
Distance = speed x time
make sure you speed and time are in the same unit
Insert the parameters and solve
when a material absorbs energy from light the energy causes the material to do what?
Answer:
To change.
Explanation:
The Law of Conservation of energy states that energy cannot be destroyed but can only be transformed or converted from one form to another. For example, light energy to heat energy.
When a material absorbs energy from light the energy causes the material to change.
PLEASE ANSWER QUICKKK
According to Newton’s 2nd Law, forces cause acceleration. An object hanging from a rope has several forces acting upon it, yet it is not accelerating. Why is this?
Answer:
Because the rope is stopping the force of gravity from acceleration it.
PLZ MARK BRAINLIEST :-)
Please Help Me!!!........
Answer:
.b
Explanation:
7. An object with a weight of 19.6 N moves with a constant velocity of 20.0 m/s. A net
force of 6.00 N is applied to the object in the direction of its motion for 4.00 seconds.
What is the final momentum of the object?
Answer:
118.4kgm/s
Explanation:
Given parameters:
Weight of object = 19.6N
mass of object = 19.6/9.8 = 2kg
Constant velocity = 20m/s
Force applied = 6N
Time taken = 4s
Unknown:
Final momentum of the object = ?
Solution:
To solve this problem, we use Newton's second law of motion;
Ft = m (v - u)
F is the force applied
t is the time taken
m is the mass
v is the initial velocity
u is the time taken
Ft = mv - mu
mv is the final momentum;
So;
Final momentum = Ft + mu
Final momentum = (19.6 x 4) + (2 x 20) = 118.4kgm/s
True or false
John Watson worked with patients on analyzing their dreams
Answer:
true
Explanation:
Answer:its true i think im sorry if you get wrong
Explanation:
How far will a car travel in half an hour at
30 mph?
Answer:
The car will travel the distance of 15 miles
S= D/T
therefore
D=ST
D = Distance
S = Speed (30 mph)
T = Time (0.5 Hours)
D = 30 * 0.5 = 15
What was the name of the first oil well in the UAE?
A.Murban
B.ADNOC
C.Murhabba
D.OLPEC
Answer:
B.ADNOCExplanation:
the Abu Dhabi Petroleum Company
The first commercially viable oil discovery was made at Bab in 1960. In 1962, the company was renamed the Abu Dhabi Petroleum Company. Exports began to flow from the Jebel Dhanna terminal on December 14, 1963.
Answer:
hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
An object is experiencing an acceleration of 9.0 m/s? while traveling in a circle at a velocity of
6.2 m/s. What is the radius of its motion?
Answer:
4.27m
Explanation:
Recall that for uniform rotational motion,
the formula for centripetal acceleration is given as
Centripetal acceleration = ( velocity)² / radius
in our case we are given :
Centripetal acceleration = 9.0 m/s²
velocity = 6.2 m/s
substituting these into the formula:
9.0 = 6.2² / radius
radius = 6.2² / 9.0 = 4.27m
Do all metals stick to magnets? Give an example. I NEED HELP FASTT
Answer:
No
Explanation:
Not all metals stick to magnets. Like aluminum. if you were to stick a magnet on to an aluminum it would fall off.
A new Chevy truck comes out on the market. In an advertisement it says that it has a faster engine that Ford’s new truck. If this this statement is true, then it means that both engines do the same amount of ______________________ but different amount of _____________________.
work, power
power, work
not enough information is given
What happens when stress builds up at faults?
A. Energy is absorbed
B. Rock can bend and break
C. Plates form on the lithosphere
D. earthquakes develop at earths surface
Answer:
The answer is D because when the faults move that is the tectonic plates moving. So earth quakes will be forming when the fault moves.
Explanation:
what is economic development
Answer:
Economic Development is the creation of wealth from which community benefits are realized. It is more than a jobs program, it's an investment in growing your economy and enhancing the prosperity and quality of life for all residents. Economic development means different things to different people.
According to O*NET, what are common work styles needed by Chefs and Head Cooks? Select four options.
dependability
fitness
stress tolerance
leadership
common sense
attention to detail
The answer is 1, 3, 4, and 6; I just did the question on Edg and I thought that it would need to be posted on here to help others
Answer:
1-3-4-6
Explanation:
not taking the mans answer but just posting it here for people to see it clearly if brushed over on his.
A projectile is fired at a velocity of 50 m/s straight into the air. What is the velocity of the projectile when the objects displacement is 16 meters and headed downward?
Answer:
the final velocity of the object is 53.04 m/s.
Explanation:
Given;
initial velocity of the projectile, u = 50 m/s
displacement of the object, d = 16 m
let the final velocity of the object = v
Apply the following kinematic equation to determine the final velocity of the projectile.
v² = u² + 2gd
v² = 50² + (2 x 9.8 x 16)
v² = 2813.6
v = √2813.6
v = 53.04 m/s
Therefore, the final velocity of the object is 53.04 m/s.