of the following states of motion, the one which requires balanced forces is:
A: a decrease in speed in a straight line
B: an increase in speed in a straight line
C: constant speed in a straight line
D: a change in the direction of the motion

At the end of the acceleration, its speed is 81.77 m/s.

A description of an object's speed and direction of motion is comparable to the term "speed." Meter per second (m/s) is the metric measurement of speed. Centimeters per second (cm/s) can also be used to describe the velocity magnitude.

The rate at which something moves in a certain direction is referred to as its velocity. as quickly as a car traveling north on a highway or a rocket taking flight.

V = u + at

V = 5.47 + 1.65 × 9.06 s

V = 81.77m/s

To know more about Velocity visit:-

https://brainly.com/question/18084516

#SPJ1

Carrying a load on one's head can indeed be considered as a form of work. Work, in physics, is defined as the transfer of energy from one object to another, resulting in the displacement of the second object in the direction of the applied force.

For such more questions on work

https://brainly.com/question/24900258

#SPJ8

The sound wave took 1.2 seconds to travel from one whale to the other.

Velocity is a physical quantity that describes the rate of change of an object's position with respect to time and includes both the speed and direction of motion. It is a vector quantity, meaning it has both magnitude and direction and is typically measured in meters per second (m/s) or other appropriate units.

The time it took for the sound wave to travel from one whale to the other can be calculated using the formula:

time = distance/velocity

In this case, the distance between the whales is 1,800 meters and the velocity of sound in water is 1,500 meters per second. Therefore:

time = 1,800 meters / 1,500 meters per second

time = 1.2 seconds

Hence, The distance between the two whales was covered by the sound wave in 1.2 seconds.

To learn more about the velocity-time graph click:

https://brainly.com/question/11290682

#SPJ1

Answer:

Explanation: Afdjkldjf

In a collision between a Mack truck and a Mini Cooper traveling at the same speed, the collision force is greatest on the (B) Mack truck.

This is because the force experienced during a collision is directly proportional to the mass of the object involved. The Mack truck, being significantly larger and heavier than the Mini Cooper, has a greater mass.

According to Newton's second law of motion (F = m * a), for the same acceleration, a greater mass will result in a greater force. Therefore, the Mack truck will experience a higher collision force compared to the Mini Cooper.

It is important to note that the force of the collision can cause significant damage to both vehicles, but the Mack truck will generally experience a greater impact due to its larger mass.

To know more about the collision force refer here :

https://brainly.com/question/30048584#

#SPJ11

True. In order to measure the distance to an object using parallax, it must be viewed from two different locations.

Parallax is the apparent shift in the position of an object when viewed from different perspectives. By measuring the angle of this shift and knowing the baseline distance between the viewing locations, the distance to the object can be calculated using trigonometry. Therefore, two different viewpoints or locations are necessary to obtain the necessary parallax measurements for distance determination.

Learn more about parallax here:

brainly.com/question/29210252

#SPJ11

Answer:

Just get searched then go back to class

Explanation: similar situation

Answer:

290

Explanation:

Answer:

The answer is "a, c and b"

Explanation:

Answer:

Explanation:

The acceleration of an object given it's velocity and time taken can be found by using the formula

\(a = \frac{v}{t} \\ \)

where

v is the velocity

t is the time

From the question

v = 450 m/s

t = 15 s

We have

\(a = \frac{450}{15} \\ \)

We have the final answer as

Hope this helps you

Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it , therefore the correct answer is option D.

Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.

A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals.

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it, therefore the correct answer is option D.

To learn more about the science here, refer to the link given below ;

https://brainly.com/question/18186842

#SPJ2

Answer:

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero, then the slope is zero (i.e., a horizontal line). ... The slope of a velocity-time graph reveals information about an object's acceleration.

Explanation:

S=d/t

S=2/16

S=0.125m/s

Answer: The momentum value for both big rig and sport utility vehicle are the same as 16000 pound mph

Explanation:

In conclusion, the hole with a diameter of 35.0 mm drilled in the wall of the oven emits approximately 32.8 W of power.

The power emitted by a hole in the wall of an oven can be calculated using the Stefan-Boltzmann law. This law states that the power emitted by a black body is proportional to the fourth power of its temperature.
To calculate the power emitted by the hole, we need to consider it as a black body and assume it is in thermal equilibrium with the oven.
Given that the temperature of the oven is constant at 1065.0 K and the hole has a diameter of 35.0 mm, we can calculate the surface area of the hole using the formula for the area of a circle.
Area = π * (radius)^2
The radius of the hole is half of the diameter, so the radius would be 35.0 mm / 2 = 17.5 mm = 0.0175 m.
Using this radius, we can calculate the area of the hole:
Area = π * (0.0175 m)^2 = 0.000962 m^2
Now, we can calculate the power emitted by the hole using the Stefan-Boltzmann law:
Power = σ * Area * (Temperature)^4
Where σ is the Stefan-Boltzmann constant, which is approximately equal to 5.67 x 10^-8 W/(m^2*K^4).
Plugging in the values, we get:
Power = (5.67 x 10^-8 W/(m^2*K^4)) * (0.000962 m^2) * (1065.0 K)^4
Calculating this, the power emitted by the hole is approximately 32.8 W.
In conclusion, the hole with a diameter of 35.0 mm drilled in the wall of the oven emits approximately 32.8 W of power.

To know more about diameter visit:

https://brainly.com/question/32968193

#SPJ11

Answer:

no i did not observe anything

Explanation:

Answer;

Newton's laws models the motion of a body perfectly well.

The knowledge of the force acting on a body gives a good grasp of the resulting  motion.

There are three know laws of motion postulated by Newton;

 1st law; it states that an object will remain in its state of rest or uniform motion unless if it is acted upon by an external force.

 2nd law: it states that the acceleration of a body depends on the mass and force acting on it.

3rd law: it states that action and reaction are equal and opposite.

A sound understanding of these law's can help predict and model the motion of a body .

Answer: Traveling wave

Explanation:

Answer:

By applying relative small force to the smaller piston

Explanation:

If a car sits on top of the large piston, it can be lifted by applying a relatively small force to the smaller piston, the ratio of the forces being equal to the ratio of the areas of the pistons

Answer:

A.protons and neutrons in the nucleus.

Answer:

The impulse transferred to the nail is 0.01 kg*m/s.

Explanation:

The impulse (J) transferred to the nail can be found using the following equation:

\( J = \Delta p = p_{f} - p_{i} \)

Where:                                                                

\(p_{f}\): is the final momentum

\(p_{i}\): is the initial momentum

The initial momentum is given by:

\( p_{i} = m_{1}v_{1_{i}} + m_{2}v_{2_{i}} \)

Where 1 is for the hammer and 2 is for the nail.

Since the hammer is moving down (in the negative direction):

\(v_{1_{i}} = -10 m/s \)

And because the nail is not moving:

\(v_{2_{i}}= 0\)                      

\( p_{i} = m_{1}v_{1_{i}} = 0.25 kg*(-10 m/s) = -2.5 kg*m/s \)

Now, the final momentum can be found taking into account that the hammer remains in contact with the nail during and after the blow:

\( p_{f} = m_{1}v_{1_{f}} + m_{2}v_{2_{f}} \)

Since the hammer and the nail are moving in the negative direction:

\(v_{1_{f}}\) = \(v_{2_{f}}\) = -9.7 m/s

\( p_{f} = -9.7 m/s(7 \cdot 10^{-3} kg + 0.25 kg) = -2.49 kg*m/s \)

Finally, the impulse is:

\( J = p_{f} - p_{i} = - 2.49 kg*m/s + 2.50 kg*m/s = 0.01 kg*m/s \)

Therefore, the impulse transferred to the nail is 0.01 kg*m/s.

I hope it helps you!                                                                                                                                                                                                                                                                                                                                                                                                                    

Answer: A.) Change in Velocity over Time

Explanation:

The definition of acceleration is Δv/t, or the change in velocity over time. Acceleration, like velocity, will therefore have a magnitude, as well as a direction.

(105 N/m) x (0.1 m)  =  10.5 Newtons.

Answer:

(105 N/m) x (0.1 m) = 10.5 Newtons.

Explanation:

apex quiz

The reading on the scale will be 380N as the elevator reaches the desired floor.

The weight of a person is given by,

W = Mg

So, if the weight of the person in the elevator is 490N.

So, the mass of the person will be,

490 = M9.8

M = 50 kg.

The elevator is going down with an acceleration of -2.2m/s².

So, the net acceleration of the elevator is (9.8-2.2)m/s²

Net acceleration = 7.6 m/s².

So, reading on the scale will be,

Reading on scale = Mass x Net acceleration

Reading on scale = 50 x 7.6

Reading on scale = 380N.

The scale will read 380 N.

To know more about acceleration, visit,

https://brainly.com/question/605631

#SPJ4

The kinetic energy of the locomotive is 40,000 joules.

The kinetic energy of an object is described as the form of energy that it possesses due to its motion.

The kinetic energy of an object is given by the formula:

KE = 1/2  x m x v^2

where m= mass of the object

v ivelocity.

Substituting the given values:

KE = 1/2  x 20,000 kg x (2 m/s)^2

KE = 1/2  * 20,000 kg x 4 m^2/s^2

KE = 40,000 Joules

Therefore, the kinetic energy of the locomotive is 40,000 joules.

Learn more about kinetic energy at: https://brainly.com/question/8101588

#SPJ1

The solution of expression $12.7\ge s-5.3$ is $s \leq 18$.

The expression $12.7\ge s-5.3$ is an inequality, which means that it expresses a range of values for the variable $s$. The symbol $\ge$ means "greater than or equal to," and in this context it indicates that $12.7$ is greater than or equal to $s-5.3$.

To solve for $s$, we can start by adding $5.3$ to both sides of the inequality:

\begin{align*}

12.7 &\ge s-5.3 \

12.7+5.3 &\ge s-5.3+5.3 \

18 &\ge s

\end{align*}

So the solution is $s \leq 18$. This means that any value of $s$ that is less than or equal to $18$ will satisfy the inequality. For example, $s=15$ would satisfy the inequality, because $12.7 \ge 15-5.3$. However, $s=20$ would not satisfy the inequality, because $12.7 \ngeq 20-5.3$.

What are the variables?

A variable is a symbol or letter that represents a value that can vary or change in a given context or problem. Variables are used to write mathematical expressions, equations, and functions.

To know more about the variables, visit:

https://brainly.com/question/17344045

#SPJ1

Complete question is: $12.7\ge s-5.3$ is $s \leq 18$.