The acceleration due to gravity is zero at the

Answers

Answer 1

Answer:

the center of the earth


Related Questions

A plant is said to be an exact copy of the parent plant when it has ALL the same characteristics that the parent plant has. Do you agree with this statement? Justify.

Answers

Explanation:

In Asexual reproduction , part of parent plant is detached and grows to become a complete plant. In this process plant produced is generally identical to the its parent plant. It has ALL the same characteristics that the parent plant has. However, this is not true in case of sexual reproduction of plants.

There are some laws of physics that have to do with motion. For example Newton's first law of motion states that objects ______ or ______ will stay unless acted upon by __________.

Answers

Answer:

Newton's first law of motion states that objects state of rest or uniform motion will stay unless acted upon by an external force

Explanation:

Newton's first law of motion is also called the Law of Inertia. Because, it describes the property of inertia of the body. Newton's First Law states that every object continues its state of rest or uniform motion, until or unless it is acted upon by an external force. It means that if an object is in state of rest, it will remain at rest until or unless an external force is not applied to it. Same goes for the state of uniform motion. Hence, the answer will be:

Newton's first law of motion states that objects state of rest or uniform motion will stay unless acted upon by an external force

Answer: Newton's first law of motion states that objects at rest or in motion will stay unless acted upon by a net external force.

Explanation:

Motion is typically described in terms of velocity, acceleration, displacement and time. An object's velocity cannot change unless it is acted upon by a force, as described by Newton's first law also known as inertia. More generally, the term motion signifies any spatial and or temporal change in a physical system.

Many scientists have studied motion and it's properties because of its importance to life. The Italian, Galileo Galile, who lived from 1564 to 1642, did the first systematic study of motion. Also Sir Issac Newton did more detailed work on the study of motion. In his works in motion he came about three different laws.

- Newton's first law: This states that objects at rest or in motion will stay unless acted upon by a net external force.

-- Newton's second law: This states that the force on an object is equal to its mass times its acceleration.

- Newton's third law: This states that for every action there is an equal and opposite reaction.

A 1405 kg car is accelerating at
1.77 m/s? Its engine creates a forward
force of 3150 N, and air resistance
creates a backward force. What is
the magnitude (+) of the force of
air resistance or the car?
(Unit = N)

Answers

Answer:

fair = 663.15 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

where:

∑F = forces applied [N]

m = mass = 1405 [kg]

a = acceleration = 1.77 [m/s²]

In this way, we have two forces, the one that develops the engine to move the car and the resistance force of the air that opposes the movement of the car.

[tex]3150-f_{air}=m*a\\3150-f_{air}=1405*1.77\\f_{air}=3150-2486.85\\f_{air}=663.15[N][/tex]

what's ur father put is ur name​

Answers

nothing he left lol pain

The rate of acceleration for a basketball that is falling to the ground is 9.8 meters per second. The force exerted on the basketball is 29.4 Newtons. What is the mass of the object?​

Answers

F=m x a. Force= mass times acceleration
Where mass is one kilogram
acceleration is one meter/second/second

m=f/a. Solve for the unknown (mass)

m= 29.4/9.8

m= 3 kg

A 5-N force is applied to a 3-kg ball to change its velocity from +9 m/s to +3 m/s. What is the impulse?

Answers

Answer:

-18 Nm

Explanation:

Impulse = Change of Momentum

I = ∆p

I = mv2 - mv1

I = 3 x 3 - 3 x 9

I = 9 - 27

I = -18 Nm

What causes earth's magnetic field to flip?

Answers

Answer:

The generation of Earth's magnetic field starts at its very center. Some researchers believe polarity reversals are caused by a disturbance in the balance between Earth's rotation and the temperature at the core, which alters the fluid motion of the liquid iron, but the exact process remains a mystery.

How are computers used in education and entertainment? List them.​

Answers

Answer:

The computers used in education and entertainment are:

Explanation:

Analog computer,Digital COMPUTER,Hybrid Computer

Which substance is a heterogeneous mixture?

Cheddar cheese

clean air

Granola bar

Drinking water

Answers

Answer:

Granola Bar

heterogeneous:  Makeup of the object can be separated:  In this case; oats, nuts, fruit etc.

Explanation:

All the other options are homogenous.  

Cheddar cheese:  consistent make-up

Drinking water:  H20 plus sanitizers like chlorine but is not separable

Clean air:  Oxygen and nitrogen mixture

_______is a speed in a certain direction.
a. Acceleration
b. Friction
C. Momentum
d. Velocity

Answers

d. velocity
Velocity depends on speed and direction

The water-balloon weighs 4.9 N. gravitational field strength = 9.8 N/kg Calculate the mass of the water-balloon

Answers

Answer:

0.5kg

Explanation:

Mass = Weight / Gravitational field strength

Mass = 4.9 / 9.8

Mass = 0.5

A basketball player jumps straight up with a speed of 14 m/s. How high did the player jump?

Answers

Answer:

The basketball player jumped 10 m high.

Explanation:

Vertical Launch Upwards

In a vertical launch upwards, an object is launched vertically up without taking into consideration any kind of friction with the air.

If vo is the initial speed and g is the acceleration of gravity, the maximum height reached by the object is given by:

[tex]\displaystyle h_m=\frac{v_o^2}{2g}[/tex]

The basketball player jumps up with a speed of vo=14 m/s. The maximum height is:

[tex]\displaystyle h_m=\frac{14^2}{2*9.8}[/tex]

[tex]\displaystyle h_m=\frac{196}{19.6}=10[/tex]

The basketball player jumped 10 m high.

1. how much time will it take for a bug to travel 5.0 meters
If it travels it a velocity of 1.4 m/s South?

Answers

T= D dived by V

5.0/1.4= 3.57

ReadWorks
Date:
Name:
1. According to the text, what are plastics made of?
A. specially treated silicon
B. negatively charged particles
C. long chains of carbon molecules
D. a standard photovoltaic cell

Answers

Answer:

c. long chains of carbon molecules

The sum of all forces acting on an object is what is referred to as _________
Group of answer choices
Mass
Net Force
weight
Normal force

Answers

Net force is the total of all forces acting in the object.

In a college homecoming competition, eighteen students lift a sports car. While holding the car off of the ground, each student exerts an upward force of 400 newtons. What is the mass of the car in kilograms?

Answers

734.19567 Kilogram Force

Explanation:

7200 Newton = 734.19567 Kilogram Force

Please help me with this question

Answers

Answer: m∠P ≈ 46,42°

because using the law of sines in ΔPQR

=> sin 75°/ 4 = sin P/3

so ur friend is wrong due to confusion between edges

+) we have: sin 75°/4 = sin P/3

=> sin P = sin 75°/4 . 3 = (3√6 + 3√2)/16

=> m∠P ≈ 46,42°

Explanation:

1.Explain how a beach ball and a bowling ball can be similar in sizebut differ in physical properties Be sure to discuss densitymass colorsize, and volume

2. How would each behave if you tossed them into air?

Answers

Answer:

well a beach ball could be any size at all a bowling ball is usually the same size  the weight difference is inside of them inside the beach ball there's air although in a bowling ball there's cement or rock i don't know what they put inside the ball but anyway the bowling ball a lot higher density o it has more volume so the bowling ball is a lot heavier than just a beach ball

Explanation:

Which example demonstrates constant speed with changing direction?

Answers

Uniform circular motion is defined as the constant-speed movement of an object in a circle.

What is Speed?

The definition of speed is. The rate at which an object's position changes in any direction. Speed is defined as the ratio of distance traveled to time spent traveling.

Speed is classified as a scalar quantity because it has only one direction and no magnitude.

In summary, the act of turning away or in the opposite direction. reversal, reverse, reversion, turnabout, turnaround.

Learn more about Speed here:

https://brainly.com/question/13943409

#SPJ1

Why does a third class lever cannot magnify force?​

Answers

Explanation:

The third class lever cannot magnify our force because in third class lever the effort it between the load and the fulcrum. Also, in this type of lever no matter where the force is applied, it is always greater than the force of load. Hence, That type of lever cannot magnify our force.

guys HELP PLS find the probability

Answers

Answer:

45/139

Explanation:

there are 45 green candies that you could pick out of a total of 139 candies.

Question 24 (1 point)
A 85 kg boy is riding his bicycle in circles with a radius of 7.2 meters. It takes him 6
seconds to make ones revolution. What is his velocity?
730 m/s
0.53 m/s
1.25 m/s
4:
7.54 m/s

Answers

I believe it is B. Or C.


I hope this helped!


I would appreciate it if you gave me a Thanks and a brainliest (:

A boy of mass 85 kg is riding a bicycle in a circle with a radius of 7.2 meters, and it takes 6 seconds to make one revolution, then his velocity will be equal to 7.54 m/s.

What is tangential velocity?

The movement of an object along the circle's edge which path is always at the tangent to any specific point on the circle is described by tangential velocity.

As a result, tangential velocity is the amount of motion along a circle's edge that may be measured at any given time.

The speed at any location that really is tangent to the rotating wheel is quantified as the tangential velocity in a circular motion. The connection between rotational acceleration and tangential velocity is expressed by the formula. The part of movement along the circle's edge that can be detected at any time is called tangential velocity.

The given data in the question,

Radius, r = 7.2 meters.

Time, t = 6 seconds.

v = 2πr / t

v = 2π(7.2)/6

v = 7.54 m/s.

Therefore, the velocity of the boy is 7.54 m/s.

To know more about tangential velocity:

https://brainly.com/question/28738284

#SPJ2

please actually answer the question

Answers

It’s B. I found the answer on it is warm to cool in waves

please help mee I’ll give brainliest

Answers

Answer:

It has potential energy and then the eg=nergy goes to the bug killing it becay=use of the force

Explanation:

"use the force luke"

Answer:

It has potential energy and then the energy goes to the bug killing it because of the force

Explanation:

An object is traveling at a constant velocity of 10 m/s when it experiences a constant acceleration of 3.5 m/s2 for a time of 10 s. What will its velocity be after that acceleration?

Answers

Answer:

The final velocity of the object is 45 m/s.

Explanation:

Given;

initial velocity of the object, u = 10 m/s

acceleration of the object, a = 3.5 m/s²

time of motion, t = 10 s

The final velocity of the object is given as;

v = u + at

where;

v is the final velocity of the object

v = 10 + (3.5 x 10)

v = 45 m/s

Therefore, the final velocity of the object is 45 m/s.

two sources of error and precaution in the centre of gravity experiment​

Answers

Answer:

The answer to this question is given below in this explanation sections.

Explanation:

The weight of an object is concentrated at the center of gravity.The term center of gravity is used interchangeably with center of mass.For a symmetrical object the center of mass is located  at the geometric  center of the object.If the object is not symmetric we can determined the center of mass using the mentioned below.

Materials:

cardboardweight(washer,bolt,or fishing weight)hole punchpencil

Procedure:

Cut the cardboard into a strange shape.Do not use a circle,square,rectangle,or any other common geometric shape.Punch a hole near the edge of the cut-out cardboard piece and hang it from a nail.Place the weight, a washer or bolt, on a thread and tie it off.Hang the thread and weight from the nail in front of the cardboard.use a pencil to draw a plumb line down the cardboard where the thread touches.This mark your center  line from that hanging point.

conclusion:

             What would happen to the center of gravity of the shape if you were to spin it freely?

center of gravity experiment:

Balance a ruler with a hammer.Take a rubber band or string and make a loose loop around the hammer and ruler. Make sure the end of the hammer is touching the ruler,and then positions the ruler at the edge of the table.Balance two forces with  a toothpick.A common magic  trick using the properties of center of gravity.The two forks are balanced on the edge of the glass by a toothpick. Stand with your back and feet against a wall.Have someone place quarter on the floor at your feet.Try to pick it cup.Most people cant make these adjustments.Stand against a wall sideways with your arm and leg touching the wall,with nothing to from the out away hold onto.Try to lift your other leg straight out away from the wall.you wont be able to do it.The girls away win chairs lifting challanges place dining chairs against a wall.Bend over the chair so that your head touches the wall and you upper body is parallel to the floor.lift the chair to your chest to your chest and then try to stand up.

give reason: the liquid pressure varies with the depth.
can I get the answer fast?? ​

Answers

Answer:

This is due to an increase in hydrostatic pressure, the force per unit area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the water pushing down on you.

hELP PLS ITS BEEEN A DAY AND A HALF im lit rally stuck pls i lost 10 points and didnt get the answer help me pls

Answers

Answer:

The height of the hurdler when he clears the hurdle is approximately 1.1045 meters (high)

Explanation:

The given parameters are;

The distance the hurdler is from the hurdle, d = 0.535 m

The velocity with which the hurdler jumps, u = 6.82 m/s

The angle at which the hurdler jumps, θ = 67.9°

The horizontal component of the velocity is uₓ = u × cos(θ)

∴ uₓ = 6.82 × cos(67.9°) ≈ 2.566 m/s

The time it takes, t, the hurdler to get to the hurdle horizontally 0.535 m away is given as follows;

Time, t = Distance/Velocity = d/uₓ = 0.535 m/(2.566 m/s) ≈ 0.2085 s

t ≈ 0.2085 s

The kinematic equation of vertical motion, under gravity can be presented as follows;

h = [tex]u_y[/tex]·t - 1/2·g·t²

Where;

h = The height reached by the hurdler in time t

[tex]u_y[/tex] = The vertical component of the velocity = u × sin(θ)

g = The acceleration due to gravity

∴ [tex]u_y[/tex] = 6.82 m/s × sin(67.9°) ≈ 6.3189 m/s

[tex]u_y[/tex] ≈ 6.3189 m/s

Substituting the known values gives;

h = 6.3189 × 0.2085 - 1/2×9.8×0.2085² ≈ 1.1045 m

The height of the hurdler when he clears the hurdle, h ≈ 1.1045 m.

Describe two adaptations and explain how they help you survive.

Answers

Answer:

My feet and my fists

Explanation:

My feet help me walk

and my fists help me one punch people

Feet’s you can run, and arms that can help you make food and do stuff

Lavon is going to the beach on a hot summer day. He wants to take a bottle of cold water
What material would be best to wrap the bottle to keep the water cool?

Answers

Answer:

aluminum foil and cotton

Explanation:

It was found that the aluminum foil and cotton were the best insulators for keeping the water cold while the Styrofoam sheets and the bubble wrap were the worst two insulators for keeping the water cold.

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