Answer: 2 m/s
Explanation:
Divide 10 meters by 5 seconds
Which of the following correctly puts the objects in order by increasing inertia?
A. bird, butterfly, airplane
B. butterfly, bird, airplane
C. airplane, bird, butterfly
D. buttferfly, bird, airplane
How does the initial vertical velocity (right after it starts moving) of a horizontally launched projectile compare with it's final vertical velocity (right before it hits the ground)?
They are equal
The initial velocity is greater
The final velocity is greater
Answer:
The final vertical velocity is greater than the initial vertical velocity
Explanation:
Horizontal Motion
When an object is thrown horizontally with a speed vox from a height h, it describes a curved path ruled by gravity.
The resultant motion is the composition of the vertical motion and the horizontal motion.
The speed in the horizontal direction is always constant:
vx=vox
The speed in the vertical direction starts from zero and gradually increases in time:
vy=g.t
When the object was just launched, t=0, and its vertical velocity is 0
After some time has passed, the object is about to hit the ground, and its vertical velocity is greater than zero, thus:
The final vertical velocity is greater than the initial vertical velocity
An unknown substance from planet X has a density of 10 g/mL. It occupies a volume of 80 mL. What is the mass of this unknown substance?
Answer:
800 mL
Explanation:
D*V=M
You pick out the numbers as well as what it is they represent from the word problem/explanation, then from there plug them in to the equations. Once you do that, you get your product and have the answer.
10*80= 800
Name three ways you could increase the strength of an
electromagnet:
Answer:
adding more turns to the coilwrapping the coil around an iron, more specially a nail ironincreasing the current flow into the coilExplanation:
What is the role of the neutral wire
Answer:
The neutral wire is often confused with ground wire, but in reality, they serve two distinct purposes. Neutral wires carry currents back to power source to better control and regulate voltage. Its overall purpose is to serve as a path to return energy.
You push against a wall and the wall pushes back on you.
O Newton's 1st Law of Motion
O Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
Answer:
Its the third law of motion.
Explanation:
Newton's third law of motion states that every action has equal and opposite reaction.
Jen had an average speed of 2.5 m/s when hopping on one foot. If she hopped for 5.0 seconds, for what distance was she hopping?
Explanation:
distance
speed =_________
time
distance = speed × time
= 2.5 × 5.0
distance = 12.5 m
One peice of evidence that the universe is expanding
Find the average net force.
Answer:
givenmass= 3.5 kg
distance covered= 0.4m
inital speed = 1.5 m/sec
final speed = 0 m/sec
To findnet force
solutionformula for force :
[tex] \fbox{f = m.a}[/tex]
In order to find the force we need to find the acceleration.
According to third equation of Kinematics-
[tex] \bold{ {v}^{2} = {u}^{2} + 2as}[/tex]
where,
v= final velocity
u=inital Velocity
a=Acceleration
s=Distance covered
put the value in the above equation
0= (1.5)²+ 2a x 0.4
-2.25= 0.8a
a = -2.25/0.8
a= - 2.8125 m/sec²
now put the value 0f accleration in formula of force
F = m.aF = 3.5 x - 2.8125
F= -9.84375 N
to calculatw the power produced by a force, the size of the force must be known. What else needs to be known to calculate the power
-- The distance the force moved through
-- How long the force lasted
The other thing we need to calculate the power is the "Velocity".
A quantity of labor or work done to be accomplished within a particular period of timeframe is determined as power. It is denoted by "P".According to the given query, we are talking about the relation between Power and Force. Along with simple instances where such an item is moved at continuous speed by a constant force.
The relation can be shown as:
→ [tex]P= Fv[/tex]
where,
P = PowerF = Forcev = VelocityThus the above is the right response.
Learn more about Power here:
https://brainly.com/question/11380506
Choose ALL that apply: Read the story below and choose every sphere shown directly in the story. A volcano erupts on a mountain side. It creates a huge cloud of smoke and ash which block out the sun, making it harder for plants to grow.
Question 3 options:
Biosphere
Geosphere
Hydrosphere
Atmosphere
Answer:
biosphere
Explanation:
pretty sure bc it is ground
How much time does it take an object to fall 4.9 meter?
A) less than 1 second
B) 1 second
C) more than 1 second
Answer:
C more than 1 second
Explanation:
it will take time since its 4.9 meters and how hard you throw it down
A satellite was in two separate crashes. In both crashes, the satellite had the same mass. Engineers want to know about the speed and direction of the satellite after the crashes. Why would the crash affect the motion of the satellite, and which crash caused a greater change in motion for the satellite?
Answer & Explanation:
Crashing into the asteroid would cause the satellite to slow down, stop, or reverse direction, because it is a force in the opposite direction to the satellite's motion. Whichever crash was a stronger force would cause it to change motion more. It takes a stronger force to change the velocity of a more massive object.
A car is traveling in a straight line along a highway at a constant speed of 80 miles per hour for 10 seconds. Find the acceleration.
The acceleration it's the difference of speed (final speed - initial speed) divided by the time. So:
a = Δv/t
In this case the initial speed is equal to 0. The final speed is equal to 80 miles/hour. The time is 10s.
a = 80 miles/hour divided by 10 = 8 miles/hour
Answer:
8
Explanation:
Because as you can see 80/10= 8
Answer is 8
True or False: In a parallel circuit, if one path is broken, electrons continue to flow to the
other paths
Answer:
false
Explanation:
this is what google said
No because the path the electricity needs to follow is broken. In a parallel circuit, electricity has more than one path to follow. Electrons can follow different paths as they flow from the negative side of the battery to the positive side.
A man is pulling on a rope with a force of 72 N
directed at an angle of 36◦
to the horizontal.
What is the x-component of this force?
Answer in units of N.
Answer:
57,6N
Explanation:
To find the component of a force on the x-axis we can simply do:
F * cos(36) = 72N * 0.8 = 57,6N
someone please help
[tex]w = F * S[/tex]
[tex]F = 20\\S = 10\\F * S = 20 * 10 = 200[/tex] Joules <- 1st answer
[tex]w = F * S[/tex]
[tex]1234 = F * 100[/tex]
[tex]F = \frac{1234}{100}[/tex]
[tex]F = 12.34 N[/tex] <- 2nd answer
what is the most embaresing thing thats happened to u
dont mind spelling
Answer:
I once yelled out in zoom "I WANNA KISS A ANIME BOY" Cause of a silly dare
Explanation:
Everyone laughed and I was kicked
Answer:
my brother was pushing the cart at target and the front like got my ankles and I fell in front of everyone and he was just laughing.
Why is it so important to train your core muscles?
Answer:
It helps prevents falls and supports your body. So having a strong core is beneficial to everyone because it allows your body to function properly. Improved Balance and Stability. Core exercises train the muscles in your pelvis, lower back, hips and abdomen to work together.
What was Marie's speed from point A to point B, in miles/minute?
Answer:
40m
Explanation:
40m
Which of the following best describes applying a force over a period of time?
power
energy
Impulse
Is a dinosaur a biotic factor? Why?
Answer: yes it is
Explanation: A biotic factor is something that is living. this also apply to plants animals and people. A dinosaur was once a living being so it would be classified as a biotic factors. An abiotic factor is something that is not living .so that would be tables chairs and clothes.
PLZ HELP ME
1. A stone is thrown horizontally from a cliff 30m high with an initial speed of 20m/s. How far from the cliff does the stone strike the ground?
2. A ball rolls off the edge of a table 1.44m above the floor and strikes the floor at a point 2m horizontally from the edge of the table.
A) What is the time the ball was in the air?
B) What is the initial velocity of the ball?
3. A golfer hits a ball and gives it an initial velocity of 40 m/s, at an angle of 30º above the horizontal.
A) How long does the ball stay in the air?
B) How far horizontally (the range) does the ball travel before hitting the ground?
Answer:
1. The stone will strike the ground 49.46 m from the base of the cliff
2. A) Approximately 0.542 seconds
B) Approximately 3.69 m/s
3. A) The time the ball spends in the air is approximately 4.0775 s
B) The horizontal range is approximately 141.25 m.
Explanation:
1. The time it takes the stone to land is given by the equation, t = √(h/(1/2 × g)
∴ t = √(30/(1/2 × 9.81)) ≈ 2.473 seconds
The horizontal distance covered by the stone in that time = 20 × 2.473 ≈ 49.46 m
The stone will strike the ground 49.46 m from the base of the cliff
2. A) The time the ball spends in the air = t = √(h/(1/2 × g)
∴ t = √(1.44/(1/2 × 9.81)) ≈ 0.542 seconds
B) The initial horizontal velocity, u = Horizontal distance/(Time) = 2/0.542 ≈ 3.69 m/s
The initial horizontal velocity ≈ 3.69 m/s
3. A) The time the ball spends in the air is given by the following equation;
t = 2 × u × sin(θ)/g = 2 × 40 × sin(30)/9.81 ≈ 4.0775 s
t ≈ 4.0775 s
B) The horizontal range, R, of the ball is given by the equation for the range of a projectile as follows;
[tex]Range, R = \dfrac{u^2 \times sin (2 \cdot \theta) }{g}[/tex]
Substituting the known values, gives;
[tex]Range, R = \dfrac{40^2 \times sin (2 \times 30^{\circ}) }{9.81} \approx 141.25 \ m[/tex]
The horizontal range ≈ 141.25 m.
w h a t
Please help :(
Answer:
y = 1
Explanation:
We need to see the equation given
y = 10/x
So we need to replace the value of x = 10 into the equation.
y = 10/10
y = 1
The acronym used when referring to the Big Five Factors is OCEAN. True False
true
Explanation:
Because I did the test
Answer:
The right answer is True
A person who takes 30 mins to bike five miles west to the store and returns home in 30mins via the same routes.
What is the average of speed and velocity?
Answer: To determine the speed of an object, you need to know the distance traveled and the Time = 4.0 seconds The speed of the cheetah in miles per hour is 63 mph 5. How far can a person run in 15 minutes if he or she runs at an average .
Explanation: I hope that was helpful !
passenger plane is flying above the ground. Describe the two components of its mechanical energy.
If Newton's third law was true, then why does a table move when I push it? If the table exerted the same amount of force to me, why does it move?
If a ball of mass 40 g moving with a speed of 200 m/s is brought to
rest in 0.02 s, calculate the average stopping force.
Answer:-400 n
Explanation:
The different odds of survival between a preterm and a full-term newborn involve: cephalic development.
the maturation of the skeletal system.
the maturation of the neurological, respiratory, and cardiovascular systems.
proximo-distal development.
Answer: B
Explanation: