# Physics, newtons laws

73,388 results

**physics**

A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf? 37.9 newtons 32.1 newtons 33.1 newtons 35.0 newtons 50.5 newtons

**Physics**

The force between positive charges from the problem 18) has the magnitude a)4 Newtons b)9 Newtons c)9x10^9 Newtons d)4x10^9 Newtons e)none of these

**Astronomy**

The speed of light is the same for all observers, and the laws of physics are the same for all observers in uniform motion. These two statements are fundamental postulates of A) general relativity B) Newtons laws of motion C) special relativity D) the laws of electricity and ...

**Physics**

Which of Newtons laws would best explain what causes a basketball to bounce? first second third fourth which of Newtons laws would explain the whiplash caused by being rear ended in a car accident? first second third fourth I believe the answer to number one is the second law ...

**Science**

Without newtons second law would there be gravity on earth??????? Help!!! And also how are newtons second and third laws of motion important to your everyday life?

**physics**

A car with a mass of 1.2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force acted on the car to cause that acceleration? 3.0 × 102 newtons 6.0 × 102 newtons 1.2 × 103 newtons 4.8 × 103 newtons 1.2 × 104 newtons

**physics**

A box weighing 200 newtons is hanging from the ceiling. The value of 2 is 65°. Tensions T1 and T2 are 70 newtons and 130 newtons respectively. What is 1? 0.05° 25.2° 38.29° 76.58° 89.9°

**Physics**

Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.

**Science**

If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of Fred and the man (each applying 10 newtons of force), what would be the net force on the crate from all the pushing? 0 newtons *8 newtons 10 newtons ...

**physics**

Two forces of magnitude 20 newtons and 25 newtons respectively act at a point. If the resultant force is 39 newtons, the angle between the forces has to be nearly?

**Science**

What is the Newtons Laws

**Anthropologhy**

Sumptuary laws are: (Points : 1) property laws. marriage laws. religious laws. civil laws.

**Physics**

A baseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. The duration of the collision is 8.0 × 10-3 seconds. The ball moves off with a speed of 50 meters/second in the opposite direction. What is the value of the force? A. 1.8 × 102 ...

**Physics, newtons laws**

A 20.0 gram mass is attached to a 120 com long string. It moves in a horizontal circle with a constant speed of 1.50 m/s. What is the degree is angle between the pole and the string?

**physics newtons laws**

A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.

**physics newtons laws**

A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.

**Physics**

Three forces are applied to a mass. Force 1: +3 Newtons Force 2: -3 Newtons Force 3: +2 Newtons What is the net force in Newtons on the mass?

**Science**

PLEASE HELP !!!!! how are newtons second and third laws of motion important to your everyday life?

**Physics, newtons laws**

A bullet is fired with a certain velocity at an angle above the horizontal at a location where g= 10.0 m/s^2. The initial x any components of its velocity are 86.6 m/s and 50 m/s respectively. How long does it take before the bullet hits the ground?

**physics**

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons

**Physics**

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.

**Science**

Can someone please explain what Newtons 3 laws mean? i don't understand the text book definition.

**physics**

How do you find the total mass of two objects that weigh 111 newtons and 218 newtons?

**physics**

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons answer please

**Government Check**

What was the name of the discriminatory laws enacted in response to the 13th, 14th and 15th Amendments? a)Separate but Equal Laws *b)Jim Crow Laws c)Dred Scott Laws

**physics**

A lever uses a force 212 Newtons to move a rock that weighs 2000 Newtons. What is the mechanical advantage?

**World History**

What was the significance of the Code of Hammurabi? The laws were developed from an ancient Sumerian code of laws. The laws were displayed throughout the empire for all to see. The laws guaranteed many freedoms for ordinary citizens. The laws guaranteed equality between the ...

**physics**

A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of:

**science**

what would be the weight of the following items in the chemistry lab round to nearest tenth 3.4 kg of lead = _ newtons 390 g of copper = _ newtons 6820 cm3 of water = _ newtons

**engineering science**

a bale of weight 200 newtons hanged at the end of a rope.find the acceleration of the bale if the tension in the rope is 200 newtons,150 newtons,300 newtons.

**physics**

two people kick a ball. one of them kicks it with a force of 215.0 newtons. the other one with 189.0 newtons. their approach creates a 210.0 degree angle at the point of impact and causes the ball to go in a different direction. what is the resultant of the vector from this ...

**physics newtons laws 3**

The coefficient of static friction between the m = 3.20 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

**physics newtons laws**

A box of books weighing 280 N is shoved across the floor of an apartment by a force of 390 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move the box 4.00 m, ...

**science (physics)**

An applied force of 50 Newtons is used to move a 6 kilogram mass.The opposing friction force to overcome is 2 Newtons.

**physics**

Two concurrent forces have a maximum resultant of 45 newtons and a minimum of 5.0 newtons. What is the magnitude of each of these forces?

**SCIENCE**

wat are 2 ways newtons 3 laws of motion apply in volleyball!!! please help i looked everywhere!!! please I NEED THIS BY TOMORROW!!!!!!! thank you

**Social Studies**

3. How long is the term of a senator? 2 years 4 years 6 years****** Life 4. What is the core function of the executor branch? To make laws To interpret laws To carry out laws To declare laws unconstitutional********

**physics**

If a boat is being tugged by 2 tug boats 20000 newtons north, the river is flowing at 5000 newtons south what direction is the boat and what's the velocity?

**Physics**

I understand that I have to use newtons laws of motion but I don't really get how to aplly them to this problem. Please help. An aircraft with a mass of 11000kg moving at constant speed and altitude is powered by propellers and experiences drag from air. The thrust is 225kN ...

**Social Studies**

Okay! I don't know the correct terminology for what I call MINI-LAWS. MINI-LAWS are laws added on to one big law. Example: Math has to make up 1/3rd of all lessons taught. MINI-LAWS would include...grades 3-12, college exempt. So can you tell me what the correct terminology ...

**physics**

How do I convert from kg to Newtons? You cant. kg is mass, newtons is force. If a mass is in a gravity field, then force= mass*g where g the graviational field constant is in newtons/kg (or m/s^2)

**physics**

A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top,which has a height of 3 meters. What is the efficiency?

**physics**

An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ...

**physics**

An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ...

**sociology**

Which of the following examples best demonstrates to most people that ethical progress has taken place over the past 200 years? (Points : 1) Laws that prohibit discrimination based on race Laws that have increased speed limits Laws that prevented women from voting Laws that ...

**ethics**

Which of the following examples best demonstrates to most people that ethical progress has taken place over the past 200 years? (Points : 1) Laws that prohibit discrimination based on race Laws that have increased speed limits Laws that prevented women from voting Laws that ...

**PHYSICS**

add these two forces a. 200 newtons @ 20 degrees N of E B. 200 Newtons @ 30 S of E

**Physics**

A boat weighing 9.0 × 10 2 newtons requires a horizontal force of 6.0 × 10 2 newtons to move it across the water at 1.5 × 10 1 meters per second. The boat’s engine must provide energy at the rate of

**Physics**

A box weighing 450 Newtons is pulled along a level floor at an angle of 30 degrees with the floor.If the force of the rope is 260 Newtons.What is the coefficient of sliding friction for the surface?

**soc 120**

Which of the following examples best demonstrates to most people that ethical progress has taken place over the past 200 years? (Points : 1) Laws that prohibit discrimination based on race Laws that have increased speed limits Laws that prevented women from voting Laws that ...

**Physics - Newtons laws**

A block (mass m1 = 8kg) is moving on an inclined plane, coefficient of kinetic friction of 0.45, whose angle is 30degrees. This block is connected to a second block (mass m2 = 22kg) by a cord that passes over a small frictionless pulley. Find the acceleration of each block and...

**Physics, newtons laws**

A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope. The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the plane with no ...

**Physics, newtons laws**

A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope.? The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the plane with no ...

**Science**

how can i understand the newtons laws of motion? break it down it sesions and read it then se if you understand it umm yah i need help on finding out wut is the accessory organ!!! plz help!

**MATH116**

Two forces of magnitudes 60 Newtons and 80 Newtons make an angle of 30 with each other and are applied to an object at the same point. Find the following: 1. the magnitude of the resultant force, and 2. to the nearest degree the angle it makes with the force of 60 Newtons.

**physics**

What does a 15 kg mass weigh on Earth? need assistance in setting up problem to get answer in Newtons and in pounds. thanks Weight in Newtons = M g =(Mass in kg) x (acceleration of gravity in m/s^2) The acceleration of gravity on Earth is g = 9.8 m/s^2. Do the multiplication ...

**Managerial Economics**

Some states have had laws restricting the ssale of most goods on Sunday. Consumers, by and large, oppose such laws because they find Sundat afternoon a convenient time to shop. Paradoxically, retail trade associations frequently support the laws. Discuss the reasons for ...

**Physics 1**

A mass of 5 kg lies on a frictionless, horizontal floor. A force of 135 Newtons is applied to the mass at an angle above the positive x axis and a force of 14 Newtons is applied to the mass at an angle of 22.8 degrees below the negative x direction (see sketch). If the angle ...

**physics**

A 15.0-kg box is released from rest on a rough inclined plane tilted at an angle of 45° to the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.200. What is the force of kinetic friction on the box? Answer Fifteen square root of two ...

**physics**

need a step by step process of combining this question into one vector: 56 NEWTONS at 296 degrees, then 83 newtons at 152 degrees

**physics**

Anna applies a force of 19.5 newtons to push a book placed on a table. If the normal force of the book is 51.7 newtons, what is the coefficient of kinetic friction? A) .01 B) .20 C) .38 D) .48

**Physics**

How can you figure out the work done by the frictional force if the friction is 80 Newtons against a horizontal force of 290 newtons. Is it simply subtracting 290 - 80 = 210?

**Economics**

Some states have had laws restricting the sale of most goods on Sunday. Consumers, by and large, oppose such laws because they find Sunday afternoon a convenient time to shop. Paradoxically, retail trade associations frequently support the laws. Discuss the reasons for ...

**Physics**

Your friend has slipped and fallen. To help her up, you pull with a force F, as the drawing shows. The vertical component of this force is 140 newtons, and the horizontal component is 145 newtons. _____N and the angle

**Physics**

Elle is pushing a box of mass 7.0 kilograms with the force of 25 newtons. If the force of friction is 2.6 newtons, what is the value of acceleration of the box?

**physics**

Your friend has slipped and fallen. To help her up, you pull with a force F, as the drawing shows. The vertical component of this force is 130 newtons, and the horizontal component is 140 newtons.whats the magnitude north ?

**Check my answer for 1 history question?**

11. In 1935, Hitler and Germany enacted laws which denied German citizenship to Jews, banned marriage between Jews and non-Jews, and segregated Jews at every level of Society. What were these laws called? a. The Nuremberg Laws b. The Anti-Jewish Laws c. The Berlin Plan ******

**math/physics**

Forces with magnitudes of 2000 newtons and 900 newtons act on the machine part at angles of 30 degrees and -45 degrees respectively, with the x-axis. Find the direction and magnitude of the resultant of these forces.

**Ethics**

HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in these laws? How do some businesses try to find their way around these laws

**Math Trigonometry**

Two forces act on a point. One force is 35 newtons. The other is 22 newtons. The angle between the two forces is 52degrees. Find the magnitude of the resultant force in newtons.

**Physics**

A small rocket weighs 14.7 newtons. The rocket is fired from a high platform but it's engine fails to burn properly. The rocket gains total upward force if only 10.2 newtons. At what rate and in what direction is the rocket accelerated?

**Physics**

A chair of weight 75.0N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 45.0N directed at an angle of 40.0¡ã below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of ...

**ethics question**

how HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in these laws? How do some businesses try to find their way around these laws?

**political science**

Which of the following is NOT a component of judicial review? The supremacy of local laws when they conflict with national laws or treaties. The power of the courts to declare national laws invalid if they violate the Constitution The supremacy of national laws or treaties ...

**physics**

A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of ...

**physics**

A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of ...

**Physics**

A forward force of 8X102 Newtons is applied to a 1.9x103 kg car. If the friction force on the car is 6x102 Newtons what is the acceleration of the car in units of m/s2?

**Laws of Physics**

A block and tackle has a velocity of 6 and it is being used to raise a mass of 68 newtons through 3 meters. The efficiency is 60% Calculate the amount of energy needed to lift the mass through 3 meters and calculate the amount of energy that was put into the system and the ...

**Physics**

is force and normal force the same thing? if not what is the difference. for instancee if a problem said given a force of 20 newtons. would normal force be 20 newtons? please answer !!!!!!!!!

**Physics**

how are the fundamental laws and principles of physics related to the complexity that we see in nature? 2) How do the laws of physics apply to other sciences such ad biology, chemistry, and earth science? Give a specific example to show the connection - is it because there ...

**Physics**

The weight of an object on Earth is 350 newtons. On Mars, the same object would weigh 134 newtons. What is the acceleration due to gravity on the surface of Mars, given that it is 9.8 meters/second2 on Earth?

**physics**

Choose one of the Laws of Thermodynamics (zeroth, first, second, or third) and give a brief summary of its development. Who is credited with "discovering" it and when? How did the four laws come to be ordered as they are? Please explain in detail

**physics**

You are in the supermarket, pushing a cart with a force of 79 Newtons in the horizontal direction. There is a constant force of kinetic friction operating on the cart of 14.2 Newtons. Calculate the net work done on the cart, if the cart is displaced 1.2 metres in a straight line.

**Physics**

You are in the supermarket, pushing a cart with a force of 92 Newtons in the horizontal direction. There is a constant force of kinetic friction operating on the cart of 16.8 Newtons. Calculate the net work done on the cart, if the cart is displaced 5.6 metres in a straight line.

**physics**

If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of Fred and the man (each applying 10 newtons of force), what would be the net force on the crate from all the pushing?

**physics**

A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf?

**statistics**

A supplier of plastic pellets claims that when the plastic is pressed into wafers of uniform thickness, they will have a mean breaking strength of 165 newtons and a standard deviation of 5 newtons. An engineer at the company randomly selects wafers from 12 batches of pellets. ...

**Kinematics. Newtons Laws**

Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.

**Physics- pls help**

A 5kg object starts at rest and has a force applied to it of 10 Newtons for 2 seconds, followed by 20 Newtons for 2 seconds, followed by 30 newtons for 2 seconds, all in the same direction. a. Determine its final velocity b. Sketch a graph of force vs time c. Create a ...

**math**

If an object with the weight of 70 newtons requires 37 newtons to start sliding, what is the value of the coefficient of the static rounded to the nearest tenth?

**Physics 1**

A mass of 8 kg lies on a horizontal, frictionless floor. A force of 53 Newtons pushes to the left (negative x direction) with a force of 53 Newtons. Another force of unknown magnitude pushes the mass in a direction of 28.5 degrees above the positive x axis. The mass is ...

**Physics**

A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ...

**Physics**

Two fraternities are in a tug of war. Theta Chi is pulling with a total force of 4,748 newtons to the east and Tau Kappa is pulling with a total force of 3,969 newtons to the west. What is the magnitude and direction of the resultant? Which team will win? Is it better to pull ...

**ipc**

Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2. pulling a television ...

**Integrated Physics and Science**

A crowbar is used as a lever. The effort force of 40 newtons moves 3 meters. The resistance force of 54 newtons moves 2 meters. What is the efficiency of the lever? A) 100% because energy must be conserved B) 90% C) 25% D) 18% i need help. i don't know how to figure this one out

**physics**

A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ...

**physics**

a 20 kg crate is at rest on level ground a worker begins pushing horizontally on the crate with a force 300 Newtons, but the crate does not move determine the weight of the crate in both units of newtons and units of and units of pounds, determine the normal force acting on ...

**Science- physics**

A balloon weighing 80 kg has a capacity of 1200 m3. If it is filled with helium, how great a payload can it support? The density of helium is 0.18 kg/m3 and the density of air is 1.30 kg/m3. Express your answer in Newtons. I know the answer is 12, 400 Newtons I just don't know...

**physics**

a 75kg person is standing on a scale in an elevator, the scale gives a readout in newtons(you have to use a free body diagram)determine the reading on the scale in newtons in each of the following situations, when the elevator is not moving, the elevator is moving upward at 2 ...

**Physics**

Can someone help me with this problem? It requires a lot of visualizing and I've never been great at problems like that. A pair of blocks of mass m1 =29.0 kg, and m2 =58.0 kg, are being pushed on a horizontal surface by a constant forces of magnitude F=87.0 N. The angle θ...