In a friendly soccer game, you hit a ball with a speed of 13 m/s at an angle of 24 degrees above the horizontal. (A) How long does it take for the ball to reach the goal if it is 4.2 meters away? (B) How high is the ball when it reaches the goal?
Answers
a) V= 13m/s at 24 degrees
X component of velocity Vx= V*cos24 =11.876 m/s
distance =4.2 meter
time =distance/speed =4.2/11.876 =0.3537 s
b) Vertical component of speed = Vy=vsin24=
5.29 m/s
s=ut+0.5at^2 =5.29880.3537-0.5*9.8*0.3537^2
=1.257 m above ground
Hope I helped! ヾ(^▽^*)))
Related Questions
Blue bumper car, traveling east with a force of 100 N, runs into a yellow bumper car traveling west with a force of 300 N. Because the net force will be -200 N. one of the cars will be pushed backward. Which one?
Answers
Answer:
the blue bumper car
Explanation:
because the yellow bumper car is coming in with much more force
and according to Newton, actions and reactions are equal and opposite, so the yellow bumper car will five out 300N while the blue car will give out only 100N
then it almost because a fight between 300N vs 100N
and obviously, the 300N will win and the 100N will be pushed back
Which of the following is true statement about speed?
a) Speed has no magnitude and direction
b) Speed has magnitude but no direction
c) Speed has both magnitude and direction
D) speed has magnitude but no direction
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B and D are both the same statement.
It's the correct one.
¿Cómo
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ajosta
o pondero un error de medicion?
Answers
Answer:
sorry do not speak Spanish so I would not be able to help you probably cannot read this but I would be happy to help you if you follow me and bake English so thank you
a. Define displacement
b. Use the definition of displacement to explain how it is possible for an athlete to run round a track yet have no displacement
Answers
Answer:
definition: the moving of something from its place or position.
Explanation:
though moving around a track they will always end in the same place therefore there is no displacement from the beginning position
There is no displacement from the starting position because they will always wind up in the same place as they started.
What is displacement?Displacement is defined as the overall alteration of an object's location and motion direction. Displacement is recognized as a vector quantity since it takes into account both the direction of the motion and the magnitude of the changing position. Displacement may be zero, positive, or negative.
The initial and final positions are needed in order to calculate displacement because displacement does not provide comprehensive information on the full path length.
The displacement is the shortest distance from the starting point to the finish point, the athlete starts from the start line and reaches the finish line after running through the whole track, but the starting point and the finishing point are the same, so the displacement is zero.
Therefore, the displacement of the athlete running through the track is zero for a complete race.
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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.
Answers
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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help me, please
solve this 4 kilometers = what meters and make sure to show your loops
Answers
Answer:
4 km is equal to 4000m
Explanation:
Because 1km is equal to 1000m.
4. You bought a block of cheddar from the grocery store. If you cut a small piece and a large piece from the same block of cheese, will they have the same density? Why?
Answers
Auditory receptors detect?
if u answer u get alot points
Answers
Answer:
plz mark me brianliest I really want it (puppy eyes) plzzzzzz
Explanation:
Like olfactory cells that detect odors, auditory receptor cells (also called hair cells) are recessed from the surface of the body. ... Sound waves are converted into vibrations in a fluid in the inner ear, and these vibrations indirectly move the hair cells, which then send electrical signals to the brain.
Choose the correct definitions of speed, velocity, and acceleration. Check all that apply. Acceleration tells us in which direction the object is going. Speed is the rate of change of velocity in time. Acceleration is the rate of change of velocity in time. Velocity is used to describe changes in the movement direction of the object. Acceleration tells us how far the object will go in a certain amount of time. Velocity is used to describe how fast the object is moving and tells us in which direction it is going. Speed is used to describe how fast the object is moving. Velocity is the rate of change of speed in time. Speed is used to describe how fast the object is moving and tells us in which direction it is going.
Answers
We have thatThe options that define Speed, Velocity,Acceleration.
Speed is used to describe how fast the object is moving.Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Options
B,D,E
From the question we are told
Choose the correct definitions of speed, velocity, and acceleration. Check all that apply.
Acceleration tells us in which direction the object is going. Speed is the rate of change of velocity in time. Acceleration is the rate of change of velocity in time. Velocity is used to describe changes in the movement direction of the object. Acceleration tells us how far the object will go in a certain amount of time. Velocity is used to describe how fast the object is moving and tells us in which direction it is going. Speed is used to describe how fast the object is moving. Velocity is the rate of change of speed in time.Speed is used to describe how fast the object is moving and tells us in which direction it is going.
Generally
Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Speed is used to describe how fast the object is moving without its direction in considerationHence
The options that define Speed, Velocity,Acceleration.
Speed is used to describe how fast the object is moving.Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Options
B,D,E
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thermal energy is the _____ of the kinetic and potential energies of all particles in an object.
Answers
16. After a crime scene has been photographed, the field inspector will collect and package the * O circumstantial evidence O scientific method O physical evidence O individual characteristics
Answers
The physical evidence are the silent witnesses against the perpetrators of a crime
The correct option of what the field inspector packages after the crime scene has been photographed is the option;
Physical evidenceReason:
Physical evidence are evidence that originate from inanimate objects or origin that is nonliving, and includes every material or object that serve as an indicator that someone has committed a crime, or that can link a perpetrator to crime
Examples include; Documents, hair, skin, fingerprints, weapons, soil, or fibers
The field inspector, collects the evidence that shows that a crime has been committed which are the physical evidence, after the crime scene has been photographed
Therefore, the correct option is; Physical evidence
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A ball is rolling across the floor at a constant speed. What will happen to the ball if it is exposed to an unbalanced force in the same direction that it is moving?
A. It will immediately stop.
B. Its speed will increase.
C. Its speed will decrease.
D. Its motion will be unchanged.
Answers
Answer:
B. it's speed will increase
What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s? (1 point)
A. 1.0
B. 1.5
C. 5.0
D. 6.0
Answers
Answer:
DExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question
mass = 2 kg
velocity/speed = 3 m/s
We have
momentum = 2 × 3 = 6
We have the final answer as
6 kg.m/sHope this helps you
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just finished the quick check UwU
If the distance around a circular track is 2.0km and if runners run 3 laps, what is the distance travelled?
a) 2 km
b) 0km
c) 3 km
d) 6 km
Answers
Answer:
d=6km
Explanation:
because multiply 2x3 is six
I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!
Answers
Answer:
B
Explanation:
que influencia tienen los rayos x en la actualidad?
Answers
Un perro de rescate parte del campamento en búsqueda de una persona extraviada. Se desplaza 3 km al Este, 2.5 km al Norte, 3.5 km al Suroeste y 2 km al Sur, siguiendo la ruta del caminante. ¿A qué distancia y en cuál dirección a partir del campamento se encontraba la persona perdida?
Answers
Answer:
2.9 ok ezzzzzzzzzzzzzzzzzzzzzzz
You escape the evil car pushing cat and leave him back behind you in the road. He tries to chase you, though. He weighs 2kg and his legs apply 50N of force. How fast does he accelerate?
Answers
Answer:
25 m/s²
Explanation:
F = m × a
50 N = 2 kg × a
a = 50 N : 2 kg
a = 25 N/kg
a = 25 m/s²
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Rebecca enjoys taking photos. Her father suggests that she study physical science to help improve her photography. How is physical science related to photography?
Answers
A brick is dropped from a height of 31.9 meters
Answers
Explanation:
what is asked give brief explanation about question
A 2.6 kg rock is dropped from a height of 10 m. With what speed will it strike the ground. Ignore air resistance. Solve using conservation of energy (start with Ebefore = Eafter).
Answers
Answer:
[tex]mgh = \frac{1}{2} m {v}^{2} \\ v = \sqrt{2gh} \\ = \sqrt{2 \times 9.8 \times 10} \: m. {s}^{ - 1} [/tex]
Find the instantaneous acceleration at t=ls for an object moving along a straight axis with velocity function:
v(t)= -t3+5t
Answer:
A. 2m/s^2
B. 5m/s^2
Answers
Explanation:
We know that the average acceleration a for an interval of time Δt is expressed as:
a = Δv
Δt
where Δv is the change in velocity that occurs during Δt.
e formula for the instantaneous acceleration a is almost the same, except that we need to indicate that we're interested in knowing what the ratio of Δv to Δt approaches as Δt approaches zero.
We can indicate that by using the limit notation.
So, the formula for the instantaneous acceleration is:
a = lim Δv
Δt→0 Δt
a typical 100-watt light bulb consumes 100 j of energy per second. if a light bulb converts all of this energy to 400 nm light, how many photons are produced each second?
Answers
Answer:
Let y equal lambda the wavelength of the light
e (photon) = h f = h c / y
e = 6.63E-34 * 3.0E8 / 400E-9
e = 6.63 * 3 / 400 * 10^-17
e = 4.97E-19
N= 100 J/sec/ 4.97E-19 J = 2.01E20 / sec
PLS HELP HELP WILL MARK FIRST RIGHT ANSWER BRAINLIEST!!!!
Answers
Answers:
2. Displacement is:
A. All answers correctly describe displacement.
3. What is the initial position of this car?
B. 0
4. What is the final position of this car?
C. -2
5. What is the displacement of the car during PART A of the trip?
A. 3
6. What is the displacement of the car during PART B of the trip?
C. -5
7. What is the total distance the car travels during the WHOLE TRIP?
B. 8
8. What is the total displacement the car travels during the WHOLE TRIP?
D. -2
9. What is the change in position (displacement) of the car?
A. 17 meters
10. Define and explain each of the three variables in this displacement equation: Δx = [tex]x_{f} - x_{i}[/tex]
Δx: This is the total value of displacement. xf: This represents the final position.xi: This represents the initial position.HOPE THIS HELPS!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
Answers
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.
Does Respiration produce ATP? If yes, is it a lot or a little?
Answers
Answer:
yes and little i think
Explanation:
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?
Answers
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!
an object is moving forward with a constant velocity. which statement about this object must be true?
Answers
Answer:
• Its acceleration is zero
Explanation:
from definition of acceleration:
[tex]{ \rm{acceleration = \frac{change \: in \: velocity}{time} }} \\ \\ { \rm{acceleration = \frac{ \delta \: (velocity)}{time} }}[/tex]
• since velocity is constant, change in velocity is zero
[tex]{ \boxed{ \rm{ \delta \: (velocity) = 0}}}[/tex]
• therefore:
[tex]{ \rm{acceleration = \frac{0}{time} }} \\ \\ { \boxed{ \tt{acceleration = 0 \: m {s}^{ - 2} }}}[/tex]
the speed of an object increases by 30 m/s in 10 seconds. what is its acceleration?
Answers
Hope this helps you
what is the physical state of gold at room temperature
Answers
Answer:
solid
Explanation:
Gold is a chemical element with symbol Au and atomic number 79. Classified as a transition metal, Gold is a solid at room temperature.
