A shot-putter exerts an unbalanced force of 128 N on a shot giving it an acceleration of 19
m/s2. What is the mass of the shot?

Given:

The gravitational force between two objects is,

The mass of object 1 was doubled.

The distance between the objects was tripled.

To find:

The new force of attraction between the two objects

Explanation:

The force of attraction between two objects at a distance 'r' is,

According to the question,

The new force of attraction is,

Hence, the new force of attraction is 32/9 units.

The falcon take 14 seconds to reach the pigeon.

A mathematical expression that expresses the location, speed, or acceleration of a body in relation to a specified frame of reference is called as Equation of motion,

By using equation of motion

s = \(\frac{1}{2}\)g\(t^{2}\)

where, s = total distance travelled by an object = 68.6 m

g = acceleration of gravity = 9.8m/\(s^{2}\)

t = time taken to travel the distance = ?

Therefore, t = \(\sqrt{2s/g}\)

t = \(\sqrt{2*68.6/9.8}\)

t = 14 seconds

To know more about equation of motion visit : https://brainly.com/question/20381052

#SPJ9

Answer:

The ability to do work

Explanation:

Energy can be defined as the ability to do work. We apply energy in basically everything we do in life, energy is needed to walk or move from one position to another, it is required to eat and do other basic things of life. The body system converts the food that is being consumed into energy, this energy can be switched from one form to another.

There are various forms of energy which include solar energy , wind energy, electrical energy, mechanical energy, kinetic energy, potential energy etc. This forms of energy can be converted from one form to anothe but cannot be destroyed.

Answer:

ability to work

Explanation:

As a person pedals a bike, the forces opposed to the motion are the air resistance, and the rolling resistance of the tyres.

In a process, a system undergoes 600 J of work, which results in a 300 J reduction in thermal energy. Energy cannot generate new matter or destroy existing matter, according to the first law of thermodynamics. Heat is -900J in value.

Thermal energy is the term used to describe the energy present inside a system that determines its temperature. The movement of thermal energy is heat. Thermodynamics is a complete branch of physics that studies how work is done and heat is exchanged between various systems.

Thermal energy examples include heaters that warm up a space, solar sun drying wet clothing on a line, ironing shirts, baking cakes, and warming water 1for tea. Thermal energy is released by any material or object that is warm.

To know more about thermal energy visit:

https://brainly.com/question/14506133

#SPJ4

Answer:

v = 103.70 m/s

Explanation:

To find the speed of the object, you first calculate the frequency of the reflected wave, by suing the information about the beat frequency:

\(f_b=|f_1-f_2|\)      (1)

fb: frequency of the beat = 80Hz

f1: frequency of the submarine generated by the submarine = 1080Hz

By solving the equation (1) you have that f2 can take two values:

\(f_2=1080Hz-80Hz=1000Hz\\f_2=1080Hz+80Hz=1160Hz\)

You use the second value (1160Hz) because the reflected wave comes from an object that is moving toward the sub.

Next, you use the formula for the Doppler effect's, for an object that is getting closer:

\(f'=f(\frac{v_w}{v_w-v_s})\)     (2)

f': perceived frequency = 1160 Hz

f: frequency of the source = 1080 Hz

vw: speed of sound in water = 1400 m/s

vs: speed of the source = ?

You solve the equation (2) for vs, and you replace the values of the rest of the parameters:

\((v_w-v_s)f'=fv_w\\\\v_s=\frac{v_w(f'-f)}{f}\\\\v_s=\frac{(1400m/s)(1160Hz-1080Hz)}{1080Hz}\\\\v_s=103.70\frac{m}{s}\)

hence, the speed of the object that is moving toward the sub is 103.70 m/s

Some of the Sun's energy is absorbed, scattered, or reflected as it travels through the atmosphere to the surface of the Earth by a variety of atmospheric constituents, including gases, aerosols, clouds, and the Earth's surface.

50% of the heat energy from the Sun can reach Earth's surface thanks to the atmosphere. The Sun's energy is reflected back into space at a rate of 30%. The atmosphere greenhouse gases, such as carbon dioxide, water vapour, and methane, absorb 20% of the remaining solar energy.

Ozone (O3) in the upper atmosphere absorbs a substantial amount of the Sun's ultraviolet (high-energy, shortwave) light (the stratosphere). The Earth system does not become hotter as a result of solar radiation that Earth's surface or atmosphere reflect back into space. Heat is produced as a result of absorbed radiation.

To know more about solar radiation visit:-

https://brainly.com/question/23338147

#SPJ1

Answer:

Hertzsprung-Russell Diagram

The Hertzsprung-Russell diagram (HR diagram) is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900s by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the colour of stars (or spectral type) against their absolute magnitude (the observational HR diagram, also known as a colour-magnitude diagram).

Depending on its initial mass, every star goes through specific evolutionary stages dictated by its internal structure and how it produces energy. Each of these stages corresponds to a change in the temperature and luminosity of the star, which can be seen to move to different regions on the HR diagram as it evolves. This reveals the true power of the HR diagram – astronomers can know a star’s internal structure and evolutionary stage simply by determining its position in the diagram.

Explanation:

Hence the answer is C : Super Giants

The total distance traveled by the block in a one full or complete cycle is  2A.

option C.

If a block on the end of a spring is pulled to position x = A and released. In one full cycle of its motion, it will travel the following distance as shown below;

x = A cos (ωt)

where;

During a half cycle the block will travel a total distance of A.

During another half cycle the block will travel a total distance of A.

The total distance traveled by the block in a one full or complete cycle is calculated as follows;

distance = A + A

distance = 2A

Learn more about distance of oscillation here: https://brainly.com/question/30426721

#SPJ1

With smaller gravitational forces and therefor less vertical acceleration, the projectile launched on the moon ... with the same initial speed and direction ...

-- climbs faster,

-- spends more time climbing,

-- reaches a higher peak,

-- falls slower,

-- spends more time falling, and

-- covers more horizontal distance

than the projectile launched on the Earth.

This is not because of air resistance.  It would be true even if there were no air resistance on the Earth.  It's entirely a gravity thing.  

Answer:

1895

Explanation: it was invented in 1895 by Clara Berra a physical education instructor at Sophie Newcomb College.

Answe Clara Baer invented Nukem/Newcomb ball in the year of 1895.

Explanation:Have a blessed day!

The distance travelled by the object between 5 and 10 seconds is 25 m.

The area under velocity time graph gives the distance travelled by the object.

The distance travelled by the object between 5 and 10 seconds is calculated from the area of curve within this time range.

Area of the curve between 5 and 10 seconds = Area of triangle

Distance travelled between 5 and 10 seconds = Area of triangle formed between 5 and 10 seconds

Area of triangle = ¹/₂bh

where;

A = ¹/₂ x (10 - 5 ) x ( 10 )

A = 25 m

Learn more about distance travelled here: https://brainly.com/question/24283318

#SPJ1

The acceleration of an object that is acted upon only by the force of gravity while moving in the air is the downward acceleration of gravity.

The acceleration of the ball is the acceleration due to gravity (9.81 m/s²).

Reason:

The known parameter are;

Initial speed of the ball towards the Earth, v = 20 m/s

a. Required:

The acceleration of the ball

Solution;

According to Newton's First Law of motion, the ball will continue the downward motion at 20 m/s unless acted on by a force.

The force acting on the ball is its weight, W = m·g

Where;

Given that the ball is being acted on by a force that is given by the product

of the mass of the ball and the acceleration due to gravity, g, the ball is

given an acceleration equal to the acceleration due to gravity in the

downward direction.

Therefore;

Learn more about gravitational acceleration here:

https://brainly.com/question/14234472

The speed at which the rider is spinning when the floor drops out beneath her is 5.42 m/s.

The acceleration of the rider when the normal force is half their weight is calculated as follows;

Fn = 0.5(W)

ma = 0.5 x mg

65 x a  = 0.5 x 65 x 9.8

a =  0.5 x 9.8

a = 4.9 m/s²

a = v²/r

v² = ar

v = √ar

v = √(4.9 x 6)

v = 5.42 m/s

Learn more about speed here: https://brainly.com/question/6504879

#SPJ1

Answer: while electric fields aren’t visible or tangible, they are mensurable.

Explanation: you might want to attach the experiment notes to your question***

Answer: 13 miles.

Explanation:

The magnitude of the resultant vector to round the answer to the nearest tenth, we look at the digit in the hundredth's place. If this digit is 5 or greater, we round up. If it is less than 5, we round down.

In the study of physics, we use vectors to represent quantities that have both direction and magnitude. It is often the case that we want to add two or more vectors together to obtain a single vector that represents the net result of these additions. The process of adding two or more vectors together is known as vector addition.The magnitude of the resultant vector is the length of the line that represents it on a scale drawing.

When we add two or more vectors together, the resultant vector is the vector that represents the net result of these additions. To find the magnitude of the resultant vector, we use the Pythagorean theorem, which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

In the case of vector addition, the hypotenuse is the resultant vector, and the other two sides are the component vectors. If we have two vectors a and b, the magnitude of the resultant vector is given by the following equation:|R| = √(ax2 + bx2)where R is the resultant vector, a and b are the component vectors, and x is the angle between the vectors.

For example, if the answer is 12.345, we would round it to 12.3.

for more questions on resultant vector

https://brainly.com/question/110151

#SPJ8

A psychologist will need to have good linguistic intelligence in other to be successful.

This is referred to as a professional who specializes in the handling of mental health challenges in individuals.

It is best for such professional to have a good linguistic intelligence as the right words being said to the patient will solve the problem thereby bringing in more success.

Read more about Linguistic intelligence here https://brainly.com/question/15360566

#SPJ1

To calculate the take off speed of the aircraft, we can use the formula v² = u² + 2as, where v is the final velocity, u is the initial velocity, a is the acceleration, and s is the distance traveled.

Given:
u = 25 m/s
a = 4 m/s²
s = 750 m

Plugging these values into the formula, we get:

v² = 25² + 2(4)(750)
v² = 625 + 6000
v² = 6625

Taking the square root of both sides, we get:

v = √6625
v ≈ 81.4 m/s

Therefore, the take off speed of the aircraft is approximately 81.4 m/s.

The net force acting on the car is centripetal force.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

The net force acting on the car is centripetal force.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ1

Answer:

yes  ( true)

Explanation:

positive  effects on all  the body systems.

Answer:

The movement of the liquid in a thermometer shows changes in temperature. An increase in temperature indicates the molecules in the liquid *

Explanation:

Answer:

\(v_{0,new} = v0\sqrt{}2\)

Explanation:

Initial work done on the proton is given by, \(\DeltaW0 = q V_o\)

we know that, \(\DeltaW = \DeltaK.E\)

\(qV0 = (1/2) m v_0^2\)

\(v_0 = \sqrt{}2 q V_0 / m\)                                                        { eq.1 }

If it were accelerated instead through a potential difference of 2V0, then it would gain a speed will be given as :

using the above formula, we have

\(v_{0,new} = \sqrt{}2 q (2V0) / m\)    

\(v_{0,new} = \sqrt{}4 q V0 / m\)    

\(v_{0,new} = v0\sqrt{}2\)

To calculate the average speed of the car, we can use the formula:

Average speed = Total distance / Total time

Given information:

Number of laps = 60

Track length per lap = 3.6 km

Total time = 2.4 hours

First, let's calculate the total distance traveled by the car:

Total distance = Number of laps * Track length per lap

Total distance = 60 * 3.6 km

Total distance = 216 km

Now, we can calculate the average speed:

Average speed = Total distance / Total time

Average speed = 216 km / 2.4 hours

Average speed ≈ 90 km/h

So, the average speed of the car is approximately 90 km/h.

Complete question is;

Does the galvanometer deflect to the left or the right when

a) the magnet is being pushed in

b) the magnet is being pulled out

c) the magnet is being held steady?

Answer:

Option A - when the magnet is being pulled out

Explanation:

Faraday’s law of electromagnetic induction states that: “Voltage is induced in a circuit whenever relative motion exists between the conductor and the magnetic field, and the magnitude of the voltage will be proportional to the rate of change of the flux”.

Now, applying it to the question, When the magnet is moved towards the sensitive center of the galvanometer and then pulled out, the needle of the galvanometer will deflect away from its center position in one direction only but when it is held steady, the needle of the galvanometer will return back to zero.

Answer:

10N to the left side towards you

Explanation:

The net force is the resultant force that acts on a body.

Force is a push or pull on a body.    

 Push to left side  = 25N

 Pull to the right  = 15N

Net force  = Push to left side   -  Pull to the right  = 25N  - 15N

 Net force  = 10N to the left side towards you

The net force is therefore 10N to the left side towards you

According to the given statement The new acceleration is 21 m/s².

The correct option is D.

Any process where the velocity varies is referred to as acceleration. There are only two ways to speed up: changing your speed or changing your direction, or changing both. This happens because velocity entails both a speed and a direction.

The initial force is F = mass x acceleration

F = 3.17515 kg x 7 m/s²

F = 22.23 N

When the net force is tripled, the new acceleration will be

3 x F =m x a'

3 x 22.23 = 3.17515 x a'

a' = 21.003 m/s²

The new acceleration is 21 m/s². The correct option is d.

To know more about Acceleration visit:

https://brainly.com/question/12550364

#SPJ13

The complete question is -

A 7 lb bowling ball accelerates at a rate of 7 m/s². If the net force on the bowling ball is tripled, what will be its new acceleration?

a. 2.3 m/s²

b. 7 m/s²

c. 14 m/s²

d. 21 m/s²

Answer:

double replacement

Explanation:

sorry if im wrong

Answer:

The BTU, or British thermal unit, is actually a measure of heat.