The initial velocity of the marble from the given position is 1.49 m/s.
The given parameters;
height of the table, h = 0.8 mhorizontal distance traveled by the train, X = 0.6 mThe time of motion of the marble from the given height is calculated as;
[tex]h = v_yt + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2\times 0.8}{9.8} }\\\\t = 0.404 \ s[/tex]
The initial horizontal velocity of the marble is calculated as follows;
[tex]X = v_0_xt\\\\v_0_x = \frac{X}{t} \\\\v_0_x = \frac{0.6}{0.404} \\\\v_0_x = 1.49 \ m/s[/tex]
Thus, the initial velocity of the marble from the given position is 1.49 m/s.
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HELP I SUBMITTED 30 POINTS
Find calculated displacement.
Velocity - 70 m/s
Time - 4s
Initial position- 0m
Final Position- 50m
Calculated Displacement(m) - ?
No spam Ive had enough of that
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
Let's Calculate the displacement :
we know that displacement is the shortest distance between two points (i.e final position - initial position). so here displacement :
50 - 0 = 50m1. Ethan is dragging a bag of grass from the garage to the street on the evening before garbage pick-up day. The diagram at the right is a free-body diagram. It uses arrows to represent the forces acting upon the bag. Each force is labeled according to type. The magnitude of the force is represented by the size of the arrow. Use the free body diagram to determine the net force acting upon the bag. The values of the individual forces are:
Fgrav = Fnorm = 60.5 N
Fapp = 40.2 N
Ffrict = 5.7 N.
From the calculations and the free body diagram, the net force that acts on the body is 34.5 N
What is the net force?The net force refers to the force that is acting on a body. Let us note that the gravitational force and the normal force cancel out each other. Thus the two force that act on the body are the applied force and the frictional force.
Thus;
The net force that acts on the body is;
40.2 N - 5.7 N = 34.5 N
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What is 1.0147 rounded to the nearest thousandths place?
Answer:
1.0147 rounded to the nearest thousandths place is 1.015
Answer:
1.015
Explanation:
If you put the number in place value, you have 1 in the ones place, 0 in the tenths place, 1 in the hundreds place, 4 in the thousandths place, and 7 in the ten thousandths place. In order to know how to round 4, you must look at the number directly after it. Since 7 is greater than five, round up to ten. This increases 4 by 1 which would give you the answer 1.015.
ayudenme pls es urgente es nota del cohorte
Answer:
500m
Explanation:
because 250+250 goood
what is electrostatic induction
Answer:
See Below
Explanation:
It is a change in the distribution of electric charge on one object because of the influence a nearby object that has an electric charge. So if an object with a negative charge is brought near to a neutral object, the neutral object will alter itself so that one side becomes more positive and the other side becomes more negative.
Electrostatic induction occurs whenever any object is placed in an electric field.
If an object starts with a velocity of 5.26 m/s
and ends with a velocity of 60.7 m/s in 15.0
seconds, what is its displacement?
Answer:
Displacement = 8.4m
Explanation:
Hope that this is helpful.
Have a great day.
[tex]v = 60.7m {s}^{ - 1} \: u \: = 5.26m {s}^{ - 1 } \: t = 15s \: \: \: \: \: \\ a \: = \frac{v - u}{t} \\ a \: = \frac{60 .7- 5.26}{15} \\ a = 3.7m {s}^{ - 28} \\ {v}^{2} = {u}^{2} + 2as \\ {60.7}^{2} = {5.26}^{2} + 2 \times 3.7 \times s \\ 60.7 =27 .7 + 2 \times 3.7s \\60.7 = 29.7 \times 3.7s \\ 60.7 - 29.7 = 3.7s \\ 31 = 3.7s \\ \frac{31}{3.7} = \frac{3.7s}{3.7} \\ s = 8.4m[/tex]
A traveling at 35 m/s increases its speed to 40 m/s in 5 seconds in order to make a lane change.
What is the car's acceleration
Answer:
The acceleration of the car was one meter per second squared.
Explanation:
We can use one of the kinematic equations:
[tex]\displaystyle v_f = v_i + at[/tex]
Where v_f is the final velocity, v_i is the initial velocity, a is the acceleration, and t is the time (in seconds).
The final velocity is 40 m/s, the initial velocity is 35 m/s, and the time is 5 s. Substitute and solve for a:
[tex]\displaystyle \begin{aligned}(40 \text{ m/s}) &= (35 \text{ m/s}) + a(5\text{ s}) \\ \\ 5 \text{ m/s} &= a(5\text{ s}) \\ \\ a &= 1\text{ m/s$^2$} \end{aligned}[/tex]
In conclusion, the acceleration of the car was one meter per second squared.
5 Which of the following is a scalar quantity? a. the braking force needed to stop a car b. the effort needed to hammer a nail into wood c. the heat needed to boil some water Ans FOR d. the thrust needed to lift a rocket off the ground
Answer:
C) the heat needed to boil some water
Explanation:
NEED HELP!!! 11 POINTS!!!
Based on Newton’s third law of motion, will a tennis ball go farther if it hits a tennis racquet that is still or one that is in motion?
OPTIONS:
A.
One that is still because it will absorb all of the force of the ball.
B.
One that is still because that will have a greater impact on the trajectory.
C.
One that is in motion because both the ball and the racquet will contribute momentum.
D.
One that is in motion because the racquet’s force will cancel the ball’s force out.
Answer:
c
Explanation:
because if a tennis ball hit a tennis racket still it would not go anywhere. with the tennis ball hitting the moving racket it will go further
One that is in motion because both the ball and the racquet will contribute momentum.
Thus, option (c) is correct.
Newton's third law of motion states that for every action, there is an equal and opposite reaction.
When the tennis ball hits a tennis racquet in motion, both the ball and the racquet will exert forces on each other in opposite directions.
This interaction will result in a transfer of momentum from the racquet to the ball and vice versa, potentially giving the ball a greater momentum and therefore potentially causing it to go farther.
Thus, option (c) is correct.
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Another name for the arrows in a free-body diagram is calling it a
Answer:
the free body diagram models the forces acting on an object. The object or 'body' is usually shown as a box or a dot. The forces are shown as thin arrows pointing away from the centre of the box or dot. ... It is important to label each arrow to show the magnitude of the force it represents.
A soccer ball is kicked 8 m north. Then a teammate kicks it 6 m east into the goal. What is the soccer ball’s displacement from where it was first kicked?
10 m northeast
14 m northeast
100 m northeast
4 m southeast
Answer:
Displacement=10 meters
Explanation:
The displacement is the direct path from the first contact with the ball and the last spot it was seen in. The ball was kicked north 8 meters, meaning it was kicked vertically upward, and then it was kicked east 6 meters, or to the right. If we were to draw the displacement we would see that this is a right triangle. That means we can use the Pythagorean Theorem:
[tex]a^2+b^2=c^2\\8^2+6^2=c^2\\64+36=c^2\\c^2=100\\\sqrt{c} =\sqrt{100} \\c=10[/tex]
Boom.
The displacement is 10 m toward the northeast. The first option is correct.
The displacement is a vector quantity having both magnitude and direction. It is equal to the path length between the initial and final positions.
Given:
North displacement, y=8 m
East displacement, x= 6 m
The net displacement is calculated using Pythagoras' theorem as the displacements are perpendicular to each other.
The displacement is given by:
d=√(x²+y²)
d=√(8²+6²)
d=10 m
So, the displacement is 10 m.
Therefore, the displacement is 10 m toward the northeast. The first option is correct.
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CR(OH)3+HCIO4>CR(CIO4)+H2O
Answer:
Cr(OH)3 + 3 HCLO4 → Cr(CLO4)3 + 3H2O
Stoichiometry balancing +
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
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
*Average Speed v = d/t
Distance d = v t
Time t = d/v
* remember v = average speed
Solve the following problems for average speed, distance or time. Round to tenths place:
Find the distance traveled by a car that travels with an average speed of 110 km/h for 3.5 h.
How long does it take a baseball moving with an average speed of 35 m/s to travel 18 m?
What is the average speed of a car that travels 870 km in 14.5 h?
Find the distance traveled by a car that travels with an average speed of 110 km/h for 3.5 h
To solve for distance:
d = v t
d = 110 × 3.5
d = 385 km
How long does it take a baseball moving with an average speed of 35 m/s to travel 18 m?
To solve for time:
t = d/v
t = 18 / 35
t = 0.514286
t = 0.5 s
What is the average speed of a car that travels 870 km in 14.5 h?
To solve for average speed:
v = d/t
v = 870 / 14.5
v = 60 km/h
que influencia tienen los rayos x en la actualidad?
Which term, when divided by volume, equals density?
1: distance
2: weight
3: power
4: mass
Explanation:
mass
4
4
4
4
mass
mass
mass
4
4
4
4
4
HELP ME PLEASE????????????????????????????????
Hi. okay so, i'm checking to make sure that my homework is correct, i think that H20, N2, CO2, and CH4 is correct. PLZZZ tell me if i'm wrong!!
Answer:
put an X on the second one, the third one, the forth one, and the last one
Explanation:
can i get braineist pls
A ___________ will help you plan the rest of your life around this fitness priority. A. coach B. fitness goal C. fitness evaluation D. weekly plan
Answer:
B. fitness goal I believe. please like this, I need points. ty!
Explanation:
Please help me on these questions. I’m very stuck.
Answer:
I can't see the pic so I cannot ans
what is the first invention that humans created to look at the stars?
Answer:
telescope
Explanation:
| AMNH. Before telescopes were invented, people gazed at the night sky with amazement and dreamed of a closer look. The invention of the telescope in 1608 gave humans their chance to explore the vastness of the Universe.
Answer:
The invention of the telescope
PLS MARK BRAINLIEST
La aceleración de un proyectil que describe una trayectoria parabólica cerca de la superficie terrestre es constante o variable
Answer:
Es una constante porque sigue funcionando y debido a la gravedad, tú tendrías que ser tú quien la detenga si está bajando en lugar de hacia arriba.
Explanation:
An object has a volume of 100mL and a mass of 200g. What is the density?
calculate the currrent passing acrooss a bulb if it has a resistane of 15 ohms and a potentinal difference of 6v is applied across it
V = IR
6 V = I × 15 Ohms
I = 6 V : 15 Ohms
I = 0,4 A
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what type of light on the electromagnetic spectrum has the lowest energy per photon?
Explanation:
oh wait you ask what type of light on the electricity as the lowest energy per photo so is like taking a photo yet to be like make up your mind
1)Why can't we use science to tell whether we should use a weapon or clone an animal? Explain.
2)What are the levels of Scientific Knowledge from the Lowest to the Highest?
3)What are the 5 steps of the scientific method ? Explain what EACH one is.
4)What was one of the real examples of the scientific method we covered in class? (hint: spider, comet)
5)Why do we call the metric system the “SI” system in Science?
6)The Metric System is based on the meter and what other thing? Why does that make metric easier to understand?
7)What are 3 base units we use for Length, Volume, and Mass? How do you represent them with initials? Which one is capitalized?
8)
25 km = cm
800mg = g
12500 mL = L
358mm = m
76kg = g
20L = ml
9)Metric is based on universal constants (things you can measure) rather than examples (a person’s hand or food or a grain of rice). Why is this a good thing? Why is it important for Science too?
10)What did these folks do wrong?
Belinda and Suzy are working with Bob in the lab today. They decide to play a trick on him. They tell him that even though it isn’t written down, the teacher said that when they are done with today’s experiment, they should drink the solution because it tastes just like Dr.Pepper. Bob believes them (Belinda is very cute, after all) and makes a moveto pick up his still steaming beaker. Name at least two things that these three should improve on.
An
A continuación, se explicará la incidencia que este recurso formal tiene en el significado completo del poema.
A man is pulling a cart to the left with a force of 60 N. A second man is pushing the cart to the left with a force of 30 N. There is a force of 90 N acting on the cart in the opposite direction. What is the net force acting on the cart AND how can the motion of the cart be described?
This cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
Let the first force be A. Let the second force be B.Let the third force be C.Given the following data:
Force A = 60 Newton, to the left.Force B = 2 Newton, to the left.Force C = 90 Newton, to the right.To find the net force acting on the cart:
A net force can be defined as the vector sum of all the forces that are acting on a physical object or body.
This ultimately implies that, a net force is a single (one) force that substitutes the effect of all the forces acting on a physical object or body.
Mathematically, net force is given by the following:
[tex]Net \;force = F_1 + F_2 + F_3 + F_4 + .....F_n[/tex]
Where:
F represents each force.[tex]Net\; force = 60 + 30 + (-90)\\\\Net\; force = 90 - 90[/tex]
Net force = 0 Newton
Based on Newton's First Law of Motion, this cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
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What is 4.33 and 2.16?
What is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?
We have that the final velocity of a ball thrown downward at 10 m/s after 2 seconds is
V=29.6m/s
From the question we are told
What is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?
Where
a ball thrown downward at 10 m/safter 2 secondsGenerally the Newton's equation for Motion is mathematically given as
[tex]V=U+at\\\\V=U+gt\\\\V=10+9.8*2\\\\V=29.6m/s[/tex]
Therefore
the final velocity of a ball thrown downward at 10 m/s after 2 seconds is
V=29.6m/s
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Can someone please help
Answer:
55 km
pls give brainliest hope it help
Explanation: