Pedro runs a total of 125 m in a straight line north in 11.5 s. What is his velocity.

Answers

Answer 1
velocity = displacement / time

velocity = 125 / 11.5
velocity = 10.9m/s (3sf)

Related Questions

Freud was an influential and controversial psychologist who believed that psychology should study the unconscious mind. Describe
the two books Freud published in the early 1900s. (Site 2)

Answers

Answer:

The Interpretation of Dreams": Freud noticed that dreams played an important role in his analysis of neurotic and "hysterical" patients. When he asked his patients to talk about whatever came into their minds, they often referred to their dreams, which would set off other associations and often illuminate other important connections in their past experience. It took Freud about two years to write the book, finishing it in September 1897.

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

Physical science because physical science has a lot to do with movement and in photography you have to take pictures of objects in movement.

why does the light of black body radiation change

Answers

The wavelength at which the radiation is strongest is given by Wien's displacement law, and the overall power emitted per unit area is given by the Stefan–Boltzmann law. So, as temperature increases, the glow color changes from red to yellow to white to blue.

The wavelength at which the radiation is strongest is given by Wien's displacement law, and the overall power emitted per unit area is given by the Stefan–Boltzmann law. So, as temperature increases, the glow color changes from red to yellow to white to blue

a spacecraft that seems to be motionless in deep space is given some type of quick push. which statement describes what will happen?

Answers

An applied force applied causes a body such as the spacecraft to move. The magnitude of the force determines the change in the velocity

What will happen to the spacecraft is given by option C. from among the possible question options.

C. The spacecraft will begin to move and it will continue moving until it is stopped by an equal and opposite force

Reason:

The possible question options obtained from a similar question includes;

A. The spacecraft will move for some time then stop slowly

B. Air resistance will prevent the spacecraft from moving

C. The spacecraft will begin to move and the motion will continue until a force equal and opposite to the applied force stops it

D. The quick push will not cause the spacecraft to move, as a quick push works on Earth only

The state of the space craft = Motionless

Location of the spacecraft = Deep space

Type of force applied = Quick push

The statement that describes what will happen = Required

Solution;

Let F, represent the force applied, and let Δt be the duration of the applied force, we have;

The impulse of the force, F × Δt = m·(v₂ - v₁)

Where;

m = The mass of the spacecraft

v₁ = The initial velocity of the spacecraft = 0

v₂ = Final velocity of the spacecraft

Plugging in v₁ = 0, gives;

F × Δt = m·v₂

The space craft is given a velocity, v₂, and according to Newton's First Law of Motion, it continues moving in a straight line until another force acts on it

Therefore, the correct option is option C. The spacecraft will begin to move and the motion will continue until it is stopped by an equal and opposite force

Learn more about Newton's First Law of Motion here:

https://brainly.com/question/20841616

Is this speed, velocity or acceleration

Answers

Answer:

Speed

Explanation:

There is no other information that involves or asks about the velocity or acceleration. Since that rules out two you will be left with one only option.

which force is responsible for electric gong ?

Answers

MAGNETIC FORCE...

Have a beautiful and joyful day ahead.

Answer:

Magnetic force

Explanation:

have a nice day

Cosmic abundance is made up primarily of what gases?

Answers

Answer:

Hydrogen and Helium

Explanation:

The abundance of chemical elements in the universe was made up of large amounts of these 2 gases, the rest made up only about 2% of the universe. Which were produced mostly by supernovae and certain red giant stars

Please answer this
knvijhbuehguqehguhgnghjnguhsgi0jrgij

Answers

Answer: The correct answer is c

Explanation: When heat radiates it is showing moisture and mixed ways they combine

Answer:

the answer is c trust me bruv

Explanation: im smart

please help me i’m stuck on this question

Answers

C is the correct answer if you need an explanation please let me know if not give me a 5⭐️ rating if you can

Which object is in static equilibrium?

Answers

Answer:

I believe it's C. a book that has no net force acting on it and is sitting on a table.

i’m not sure if it’s A or B

Answers

Can you give us the excerpt?

a marble rolls horizontally off a table that is 0.8m tall. if the marble lands 0.6m from the base of the table, what is the initial velocity of the marble?

Answers

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 m

The 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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PLS HELP 15 PNTS AND BRAINLSIT FOR CORRECT ASNWER PLSSSS HELP MEEE

Answers

I believe it is A. None of these contain mass

A worker pushes a box across the floor to the right at a constant speed with a force of 25N. What can you conclude about the box?
A. An unbalanced force of 25N is acting on the box.
B. The net horizontal force acting on the box is 50N.
C. Friction between the box and the floor is 25N to the left.
D. Friction between the box and the floor is 25N to the right.

Answers

Answer:

C. Friction between the box and the floor is 25N to the left

Explanation:

Answer:

Since the forces exerted on the box are equal and opposite in direction, the net force will be 0, so the box will not move.

Explanation:

UwU

Define the words offense and defense in flag football​

Answers

Answer: I believe offense is the attacking team and defense is the defending team

Source: I just peeked at dad watching football

What happens when equal forces
are exerted in opposite directions
(the same amount of push and
pull)?
A. There is positive net force.
B. There is negative net force.
C. The net force is zero.
D. There is a small net force.

Answers

Answer:

B I'm Pretty Sure :DDD

Explanation:

Balanced Forces

In one of your situations in the last section, you pushed or pulled on an object from opposite directions but with the same force. You observed that the object did not move. When the forces on an object are equal and in opposite directions, the forces are balanced, and there is no change in motion.

Which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? Select the two correct answers.
A. Observer A is stationary and Observer B is moving.
B. Observer A and Observer B are moving at different speeds relative to each other.
C. Observer A and Observer B are stationary but at different distances from the vibrating object.
D. Observer A and Observer B are both stationary and at the same distance from the object.

Answers

Answer: The answer is (B) Observer A and Observer B are moving at different speeds relative to each other. And (A) Observer A is stationary and Observer B is moving

Explanation:

This question involves the concept of doppler's effect and its effect on the frequency of sound.

The situations that might cause the two observers to measure different frequencies for the same vibrating object are:

"A. Observer A is stationary and Observer B is moving.

B. Observer A and Observer B are moving at different speeds relative to each other."

Doppler's effect states that the apparent frequency of a source of sound is different than its original frequency. It further explains that whenever an observer and the source are in relative motion with each other, either the source or the observer or both are moving, then the frequency of sound measured by the observer will be different than the actual frequency. This changed frequency is called the apparent frequency and it depends upon the direction and magnitude of the relative motion of the observer and the source.

Hence, the measured frequency can be different for the two observers if they are in relative motion with the source, with different speeds, or in the case when one observer is stationary while the other is in motion.

Therefore, the situations that might cause the two observers to measure different frequencies for the same vibrating object are:

A. Observer A is stationary and Observer B is moving.

B. Observer A and Observer B are moving at different speeds relative to each other.

Learn more about Doppler's Effect here:

https://brainly.com/question/1330077?referrer=searchResults

The attached picture illustrates the formulae of Doppler's Effect.

The gravitational potential energy of an object moving on the ground is

Answers

Answer: ΔPEg = mgh

Explanation: Increases in height and the acceleration due to gravity. The gravitational potential energy of an object near Earth's surface is due to its position in the mass-Earth system.

I have the answer, but I don’t know how to get the answer. Can anyone explain how to get it?

Answers

You divide the distance by the speed to get the time

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.

5. Fill in the blanks with either "More," "Less," or "The Same."
a) If an object has more mass than another object, it will accelerate_____
b) In order to accelerate an object more, one would need to apply_____ force.
c) If an equal force is applied to two different objects, the less massive object will accelerate____

Answers

Answer:

Explanation:

5. Fill in the blanks with either "More," "Less," or "The Same."

a) If an object has more mass than another object, it will accelerate_less____

b) In order to accelerate an object more, one would need to apply_more____ force.

c) If an equal force is applied to two different objects, the less massive object will accelerate_more___

The answer is less, more and more.

Relationship between mass and acceleration

If an object has more mass than another object, it will accelerate less. In order to accelerate an object more, one would need to apply more force. If an equal force is applied to two different objects, the less mass of an object will accelerate more

The acceleration of an object depends directly on the force acting upon the object, and inversely on the mass of the object.

Learn more about force here: https://brainly.com/question/12970081

3. In Figure 2, which object (A, B, or C) has the highest density? Why?

Answers

Answer: C Because it has more dots in the rectangle meaning that if it has more dots than others then it has a higher density according to the model

Explanation:

what type of energy results from the burning of wood or gasoline?

Answers

Answer:

Chemical energy

Explanation:

Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.

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.

Write down the relation between force pressure and area​

Answers

Answer:

Answer: Pressure is directly proportional to force and inversely proportional to area.

Explanation: Pressure is defined as the ratio of force applied to the area of cross section.

Mathematically,

P=\frac{F}{A}P=

A

F

where,

P = Pressure

F = Force applied

A = Area of cross-section

from above it is visible that pressure is directly proportional to the force applied which means that if force increases, pressure increases. It is also inversely proportional to the area of cross-section. So, when area of cross-section increases, pressure decreases.

The units of pressure are N/m^2N/m

2

and S.I. units for this term is Pascal (P).

Which of the following incorrectly matches the interaction of light with the
motion of a matter?
O vibrational modes are excited by infrared light
rotational modes are excited by radiofrequency
O the nucleus is excited by gamma radiation
O valence electrons are excited by ultraviolet light

Answers

Answer:

b

Explanation:

es

la b

what 3 things are produced as a result of the fusion of two atoms

Answers

Answer:

Electron, proton and neutron

Explanation:

In each and every atom they are consist of electron, proton and neutron.

Where on the physical activity pyramid do lifestyle activities belong?

Answers

Answer:

The physical activity pyramid helps in organizing the person's daily life routine. It separated the exercises into different levels and helps the person to inherit a fit and healthy life style.

The lines ane on top of each other
40 m
Distance:
Displacement:

Answers

Explanation:

Distance = Total path length Distance = 38m + 35m + 40m Distance = 113m

Displacement = Final - Initial posiⁿDisplacement = 40m - 38mDisplacement = 2m

some bird migrate 20000 miles if 1 mile equals 1.5 km calculate the distance there birds fly in km

Answers

20000m x 1.5km = 30000km
hope this helped :).
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