62 Answered Questions for the topic Force

02/17/22

#### Force on the biceps when throwing an object in the air

A waiter holds two plates of food in one hand. His forearmhas a mass of 2.2 kg and the centre of mass of his forearm is located 13 cm from his elbow joint. The centre of mass of the two plates is... more
Force Physics

01/11/22

#### Force of two charges

A metal is tested to have a charge of 697.6C. How many electrons are added to it to acquire the charge? If two similarly charged metals are brought 1.5m apart in a medium of dielectric constant 2,... more

11/24/21

#### Static Equilibrium in Forearm

Hello, I always get stuck every time I try to answer this because of the distance of the dumbbells or the center of mass is not given I cannot continue solving, please help As a part of his daily... more
Force Physics

10/12/21

#### A certain system consists of a number of interacting objects. Our Solar System is an example. What is the sum of these internal forces?

A certain system consists of a number of interacting objects. Our Solar System is an example. What is the sum of these internal forces? Can these internal forces cause the system to accelerate? I... more

09/21/21

#### (Physics) Acceleration and Normal Force

A squirrel hops in a sled on a snow back that has an angle of 35 degrees relative to the horizontal. The total mass of the squirrel and the sled together is 0.85kg and there is no frictional force... more

09/19/21

#### (Physics) Picture suspended on wall by two strings

A picture on a wall is hung up by two strings. String 1 exerted a force T1 with a magnitude of 2.4 N at an angle of 73 degrees above the horizontal. String 2 exerts a force T2 at angle of 47... more

09/18/21

#### (Physics) Tension in a rope

A 25kg box is pulled by a rope at angle of 25 degrees above the horizontal and slides across the floor with an acceleration of 1.5 m/s^2. 30N of force is also acting on the box vertically. What is... more

03/22/21

#### PHYSICS HELP! Force of Gravitational Attraction

Determine the force of gravitational attraction between the earth ( which is 5.98 x 10^24 kg ) and a 70 kg physics student if the student is standing at sea level, a distance of 6.40 x 10^6 meters... more

12/06/20

12/06/20

12/06/20

#### Why does the water in the glass shift backward when force is first applied, and then shifts forward when it comes to a stop? (hint: Newton’s first law of motion)

Please explain it short and simple, but in an easy to understand way.
Force Calculus Work

05/08/20

#### a horizontal cylindrical boiler 6 ft. in diameter is half full of water.

find the force on one end.
Force Math Physics Work

04/03/20

#### You are pushing a large box across a frictionless.....(IN THE DESCRIPTION)

You are pushing a large box across a frictionless floor by applying a constant horizontal force. If the box starts at rest, you have to do work W_1 in order for the box to travel a distance d in... more
Force Physics

03/12/20

A wooden ball of mass 100 gm is suspended by a thread.The horizontal current of force of air blows it to one side such that the thread makes an angle of 30' with verticle find the tension and force... more
Force Physics

10/08/19

#### magnitude and direction

Three coplanar forces acts on a block with mass m =70.0 kg. One is 23.2 N directed at 14.10, another is 35.4 N directed at 1390, the other is 77.7 N directed at 2890. What are the magnitude and... more
Force Physics Forces

06/14/19

#### What was the force that the wall exerted on the ball?

A bouncy ball with a mass of 350 g is traveling at 25 m/s when it hits a wall at a 60 degree angle relative to the wall. If the ball rebounds at a 30 degree angle and traveling at 12 m/s, and... more
Force Physics Motion

05/24/19

#### Physics questions

Imagine a large rock that isn’t movable by the current wind pressure. Imagine an L shaped object with the big rock laying on the bottom half. The wind blows at the L shape object and the top half... more

03/18/19

#### A milk truck carries milk with density 64.6

A milk truck carries milk with density 64.6 lb/ft^(3) lb/ft3 in a horizontal cylindrical tank with diameter 6 ft.(a) Find the force exerted by the milk on one end of the tank when the tank is full.... more

02/20/19

#### Calculate the work required to lift a chain.

A 4-m chain with linear mass density ρ(x) = 2x(4 − x) kg/m from x = 0 to x = 4 lies on the ground. Calculate the work required to lift the chain from its front end so that its bottom is 2 m above... more
Force

11/06/18

#### what is the force of impact

a cue ball weighs 5.5 oz with a 2 1/4 inch diameter is thrown at a speed od 75 km over 15 feet what is the force of impact
Force

02/18/18

#### what is the difference between electric and magnetic force?

I don't know how to define the two forces.
Force Pressure

02/03/18

#### Calculate the pressure that the water exerts on the diver.

Fig 1.1 shows a diver 50m below the surface of the water. The density of water is 1000kg/m^2 and the acceleration of free fall is 10m/s^2.

01/31/18

#### Force different types of force

Think about your backpack or book bag. Is it heavy or light? There are many forces acting on this boy from his full,heavy backpack Write about all the various forces you can identify that help... more

01/21/18

#### A 100kg box sits on the bottom of a 35 degree ramp...

A 100kg box sits on the bottom of a 35 degree ramp. A rope is attached and used to pull at an accelerate of 2.38m/s2. Mue=.345. With what force does the person pulling the rope have to apply?

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