We want to find at what angle a projectile is launched given that at the highest point, the speed is 6m/s.
The launch angle of the projectile is 60°.
Remember that the only acceleration will appear on the vertical axis, and this is the gravitational acceleration, this means that on the horizontal axis we will have a constant speed.
Also remember that when an object is on its highest point, the vertical velocity is equal to zero, then it only has horizontal velocity (which we know it is a constant).
Then we can conclude that the horizontal velocity is equal to 6m/s.
If the angle is measured from the horizontal axis, we will have that the horizontal velocity is a projection on the x-axis of the initial speed, this is:
12m/s*cos(θ) = 6m/s
Now we can solve this for theta.
cos(θ) = (6m/s)/(12 m/s) = 1/2
θ = Acos(1/2) = 60°
The launch angle of the projectile is 60°.
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15. Starting from rest, an object rolls freely down an incline that is 10 m long in 2 s. The acceleration of the
object is approximately?
Answer:
a = 5m/s^2
Explanation:
Vi=0 m/s
ΔY=10m
Δt=2s
find acceleration
With the givens and the acceleration being the only one missing, we can safely use the Δy = Vi Δt + 1/2 a (Δt)^2 formula
Plug it in and we get:
10 = 0 x 2 + 1/2 a (2)^2
10 = a2
10/2 = a 2/2
a = 5 m/s^2
I hope this helps :)
To prevent accidental poisoning, you should NOT __________.
A.
mix chemicals in well ventilated areas
B.
follow the instructions on the label
C.
keep materials in unlabeled containers
D.
use chemicals in well ventilated areas
Answer:
the answer is option c
Explanation:
if we keep materials in unlabelled containers we can mix them up and use 2 dangerous acids to make an explosion
HELP HOMEWORK IS DUE IN % MINUTES
6. How much time will it take for a bug to travel 5 meters across the floor if it is traveling at 1 m/s?
7. You need to get to class, 200 meters away, and you can only walk in the hallways at about 1.5 m/s. (if you run any faster, you’ll be caught for running). How much time will it take to get to your class?
8. In a competition, an athlete threw a flying disk 139 meters through the air. While in flight, the disk traveled at an average speed of 13.0 m/s. How long did the disk remain in the air?
Answer:
Answer to number 6 = 5 seconds.
Explanation:
Distance = Speed x Time.
So
t
=
d
s
t
=
5
1
=
5
So the bug will take 5s.
Answer to number 7 =133.33
Explanation:
here s=200m
v=15m/s
now,s=d/t
then,t=d/s
200÷1.5=133.33s
Answer to number 8 = 10.69 s
t = 139m/13 m/s
How far could you skip in one hour? 20m/ 3m/s
Answer:
20m/s = 72,000m, 3m/s = 10800m
Explanation:
5 star please
What role does a volcano play in our planets dynamic internal activity
Answer:
Volcanic activity acts as a window to a planet's interior. The type of volcanism and the composition of the lava give scientists a peak underneath the crust. The very presence of volcanic features tells scientists that a planet's interior is -or was - hot enough to form magma that erupted at its surface
Explanation:
hope it's helpful to you
who likes me,............................................
Huh??
Have a blessed day <333
Answer:
With Full Honesty I'm Not Sure Who Does, And It Also May Be Hard To Find Someone Who Does, Thanks For Reading This Is Also Have Some More Information Down Below. Thank You!
And I'm Taking It, Your A Single Male So, Lets Get Into The Point
Explanation:
Oh And BTW Brainly Isn't A Good Place To Look For People Who Are Interested In You, And That's Also A Good Explanation Because They Don't Even Know You, If Your Interested In Well Dating Someone Be Upfront And In-Person With Them, Just Look On Dating Appz And/or More Different Sites. IT'S REALLY SIMPLE! (～￣▽￣)～
Be affectionate. Most girls love getting showered with affection and compliments from a guy they care about. Some girls can be insecure, and love being reassured a lot. To be affectionate, just give her a gentle touch, put your arm around her, hold her hand, or do whatever you can do to give her a little bit of physical touch. This doesn't mean you have to use everything you have on her, pick the right moments to let her know you care and it'll mean a lot more than having your arm around her for four hours.DO YOU KNOW SHE LIKE YOU?Look for open body language. When a girl likes you, she will face in your direction. If a girl has her torso turned towards you in an open manner, this means that she is confident talking with you. If she has a closed body position, namely crossed arms or legs, she may be shy or nervous to talk to you or she may simply be creating a barrier to signal that she is uninterested.[1]When she is sitting with her legs crossed, watch her feet. If they are pointed towards you, it might mean that she likes you and wants to get closer to you.[2]Generally speaking, a girl will stand closer to you and will have more relaxed body language if she feels comfortable around you — for example, she'll have relaxed shoulders and she won't cross her arms, But, everyone's personality and cultural upbringing are different, so don't take it as a sign she's not into you if this isn't the case.[3]A raindrop was 16meters above the ground, falling straight down at a constant velocity. It took the raindrop 2seconds to fall half the distance to the ground. What was the raindrop's velocity?
what is the answer
Answer is 4 m/s
Step-by-step explanation:-Let :-
Constant velocity = v
Time (t) = 2 seconds
Height (h) = 16 metres
As the raindrop has constant velocity, we can write that :
[tex] \frac{h}{2} = vt[/tex]
Substituting the values, we get,
[tex] \frac{16}{2} = v \times 2[/tex]
[tex]8 = v \times 2[/tex]
[tex] \frac{8}{2} = v[/tex]
[tex]v = 4 \: m/s[/tex]
Therefore, the velocity of the raindrop is 4 m/s.
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will give correct answer brainliest
Momentum Before Collision Momentum After Collision Ball 1 ? 10 kg m/s O kg m/s Ball 2 4 kg m/s This table shows the exchange of momentum for Ball 1, which was traveling at 10 kg m/s when it hit Ball 2, which was stationary. The momentum of Ball 1 after the collision is 4 kg m/s. 6 kg m/s. 6 10 kg m/s. 14 kg m/s.
Answer:
6kg m/s--------------------------
what is linear momentum
Answer:
Linear momentum is defined as the product of a system's mass multiplied by its velocity.
how do atomic structures apply to the formation of stars?
Answer:
Stars create new elements in their cores by squeezing elements together in a process called nuclear fusion. First, stars fuse hydrogen atoms into helium. Helium atoms then fuse to create beryllium, and so on, until fusion in the star's core has created every element up to iron.
Explanation:
Hope this helps.
Answer:
hahahahahaha hahahahaha hahah
Which of the following is the correct definition of electric magnetic field
Answer:
the electric magnitic is not a field to have an violen not elictric because a pandmic
sana maka toulong
Which of the following cannot be determined from the spectrum of a star?
the temperature of the atmosphere of the star
the motion of the star
the chemicals in the atmosphere of the star
the chemicals in the core of the star
Answer:
From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star.
Answer:
The answer would be the chemicals in the atmosphere of the star.
A plane mirror moves towards the object with a velocity of 2m/s and the object itself moves towards the mirror with a velocity of 5m/s. What is the velocity of the image approaching towards the object..
Answer:
3.33 m/s
Explanation:
1/2 = 1/5 + 1/x
1/x = 1/2 - 1/5
1/x = 5/10 - 2/10
1/x = 3/10
x = 10/3
x = 3.33 m/s
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marissas car accelerates uniformly at a rate of -2.60m/s^2. how long does it take for marissas car to accelerate from a velocity of -28.2m/s to -42.3m/s?
Answer:
1.02s
Explanation:
In this situation the following equation will be useful:

Where:
 is Marissa's car final velocity
 is Marissa's car initial velocity
 is Marissa's car constant acceleration (assuming this is the acceleration, since 1269 m/s^{2} does not make sense)
 is the time it takes to accelerato from  to 
Allison (a marathon runner) can run at a steady velocity of 2.8 m/s. How far can Allison run at this speed in 32 minutes?
Answer:
5376 meters per 32 seconds.
Explanation:
Multiplied 2.8 by 60 Making it 168 m/m. Then multiplied that by 32, since it’s 32 minutes, and got 5,376 meters per 32 minutes.
Hope This Helped!
Information travels at 120 metres per second in neurones. Calculate the time it would take for the information to travel 2.3 m along a neurone. Give your answer in milliseconds.
Answer:
5 remainder 5
Explanation:
divide 120 by 2.3
To calculate the time it would take for information to travel a certain distance along a neuron, you can use the formula: Time = Distance / Speed.
Given that the information travels at 120 meters per second and the distance is 2.3 meters:
Time = 2.3 m / 120 m/s
Time ≈ 0.019167 seconds
To convert seconds to milliseconds, multiply by 1000:
Time in milliseconds ≈ 0.019167 s * 1000 ms/s ≈ 19.167 ms
So, it would take approximately 19.167 milliseconds for the information to travel 2.3 meters along a neuron.
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Rearange the following equation
5.5t=1.2t^2
[tex]\\ \sf\longmapsto 5.5t=1.2t^2[/tex]
[tex]\\ \sf\longmapsto t^2=\dfrac{5.5}{1.2}[/tex]
[tex]\\ \sf\longmapsto t^2=4.58[/tex]
[tex]\\ \sf\longmapsto t=\sqrt{4.58}[/tex]
[tex]\\ \sf\longmapsto t=2.1[/tex]
which particle is transferred from one object to another to create a static charge?
Answer:
The answer is A: Electron
Because they are loosely bounded and can be easily transferred. The protons are bounded to the nucleus so they cant be transferred.
It cant be an atom or a molecule.
Explanation:
Can some one help me whith the answer
→ The charge in electron charge Q(e) is equal to the charge in coulombs Q(C) times 6.24150975⋅1018:
1C = 6.24150975⋅10¹⁸e
Q(e) = Q(C) × 6.24150975 × 10¹⁸
Q(e) = 96,500 × 6.24150975 × 10¹⁸
Q(e) = 6.02305690875 × 10²³
which is round off to
→ 6.03 × 10²³ electrons
1 point
A person travels at the rate of 60 miles per hour and covers 300 miles in 5
hours. If he reduces his speed by 10 miles per hour, how long will he take to
cover the same distance ?
Answer:
6 hours
Explanation:
mention 4 layers of the atmosphere
Answer:
These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere.
A further region, beginning about 500 km above the Earth's surface, is called the exosphere.
Explanation:
Hope this helps you. Have a nice day. Please mark as brainliest. It helps a lot.^_^
Calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 2.50m
Hi there!
Because of Newton's Third Law, the force exerted by the sprinter on the track is equal and opposite to the force exerted by the track on the sprinter.
We can begin by calculating the sprinter's acceleration. Use the equation:
vf² = vi² + 2ad
Rearrange for acceleration:
(vf² - vi²)/2d = a
Plug in values:
(8² - 2²)/2(2.5) = 60/5 = 12 m/s²
Calculate the force:
∑F = ma
∑F = 60 × 12 = 720 N. This is the amount of force exerted by the track on the sprinter in causing him to accelerate forward.
Thus, the backward force exerted by the sprinter on the track is the opposite, or -720 N.
What resistance does a 25 W light bulb have if 12.6 V is applied to it?
(3 marks)
Answer:
Explanation:
W = 25 Watts
V = 12.6 Volts
I = ? I is the current in amperes.
Solution
25 = 12.6 * I
I = 25 / 12.6
I = 1.98 amperes
V = 12.6
I = 1.98
R = ??
V = I * R
12.6 = 1.98 * R
R = 12.6 / 1.98
R = 6.35 ohms
the process of submerging an object to determine its volume is called
Answer:
Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method. Often taught in chemistry or other science classes, this method is known for its simplicity and accuracy.
Explanation:
Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method.
What is displacement?Shortest distance between two point are called as displacement, or we can say that when a body moves between two points the total lengths between two points are called as distance but the shortest distance between two point is called as displacement. Displacement is measured in meter and it is a vector quantity. Displacement may became zero but distance never became zero.
In above problem we cam say that in a race car start form a point and reaches at the same point then it's displacement is zero because there is no shortest distance. Displacement is measured in meter and it is a vector quantity. Displacement may became zero but distance never became zero.
Therefore,Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method.
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Why does it sound different when tapping on an aluminum spoon with an aluminum spoon when tapping on an iron jar?
Answer:
When the different objects drop on floor then each object vibrate at its natural frequency and produce different sound.
Explanation:
Conclusion: Thus different object has different vibration frequency and when they dropped on floor each vibrate at its natural frequency and produce different sound.
What is the acceleration of a car that increases its velocity from 0 to 100 kilometers per hour in 10 seconds?
Answer:
0.00278 km/sec2 or 36,000 km/hr2 .
Explanation:
What is meant by the phrase "a consistent method of measurement"?
A. All measurements are in SI units.
B. Every measurement is exactly the same numerical value.
C. The same person performs all measurements.
D. Measurements are taken in a way that is the same every time.
Answer:
D. Measurements are taken in a way that is the same every time
Explanation: I took the quiz and got it right.
how is the lens able to change its refractive power?
Answer:
The lens can sharpen the curvature of its front and back surfaces, increasing its focusing power.
Explanation:
A lens can change its refractive power through sharpening of the curvature of its front and back surfaces, thereby increasing its focusing power.
What is refractive power of lens?The optical power of a lens is the degree to which the lens is able to converge or diverge light.
The optical power of a lens is measured in Diopters, and obtained by taking the reciprocal of the focal length in meters.
P = 1/F
How lens changes its refractive powerA lens can change its refractive power through sharpening of the curvature of its front and back surfaces, thereby increasing its focusing power.
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If you place a force of 10 N on a box and accelerate at 1.2 m/s squared what is the mass of the box?
Answer:
8.33 kgExplanation:
The mass of the box can be found by using the formula
[tex]m = \frac{f}{a} \\ [/tex]
f is the force
a is the acceleration
From the question we have
[tex]m = \frac{10}{1.2} = 8.333... \\ [/tex]
We have the final answer as
8.33 kgHope this helps you
how is the moon different during a new moon phase than during a lunar eclipse?
Answer:
because one the moon just resets and the other is a whole other thing