62 Answered Questions for the topic Force

01/15/18

What is the acceleration of the satellite? Direction of the acceleration? What is the name of the force providing the acceleration? Speed of satellite?
a 1000kg satellite orbits the Earth at a radius of 50,000 km.  What is the acceleration of the satellite? The direction of the acceleration? What is the name of the force providing the... more
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01/15/18

Energy of a covalent bond is approximated as: V (rij) =1/2 k [( rij-bij)]power2 Calculate the force acting on atoms as a function of interatomic distance.
Energy of a covalent bond is approximated as: Vb (rij) =1/2 kijb [( rij-bij)]2 Calculate the force acting on atoms as a function of interatomic distance.
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04/12/17

A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontal sides of width 100 cm and 50 cm.
A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontalsides of width 100 cm and 50 cm. Assume the length of the trough is 1000 cm. Thedensity of water is = 1000... more
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01/17/17

Word Problem (Trigonometry/Calculus)
A cart full of packages weighing 180 pounds is rolling down a ramp 12 feet long at an incline of 25° (the force applied by gravity is equal to the weight of the package). Find the work done by... more
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Force

01/05/17

A 1580kg car is travelling at a speed of 15.0m/s.What is the magnitude of the horizontal net force that is required to bring it to a halt in a distance of 50.0m
magnitude in force
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Force

12/10/16

Do all forces have the same magnitude?
Do forces have the same magnitude?  
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10/14/16

A 50N sofa is inclined on a ramp at 250. Both µk and µs are 0.6
a.) What is the smallest force parallel to the incline needed to keep the sofa from sliding down? b.) What parallel force is required to keep the sofa moving up the incline at a constant speed?c.)... more
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09/05/16

Convert this pressure to atmospheres (atm) - Show Work
A ball is inflated to a pressure of 32.0 pounds per square inch (psi). Convert this pressure to atmospheres (atm).Useful Equations:1.00 atm = 101300 Pa1.00 atm = 101.3 kPa1.00 atm = 14.7 psi1 in. =... more
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Force

07/29/16

Find the mass
A uniform meter of mass 90g is pivoted at the 40cm mark. If the rule is in equilibrium with an unknown mass my placed at the 10cm mark and a 72g mass at the 70cm mark, determine m.
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05/09/16

What force is applied to the car?
At a race track, a car of mass 1150 kg crashes into a concrete wall at a speed of 85 m/s.   a. The car crashes into the wall, stopping in 0.1 seconds. What force is applied to the car?   (I'm... more
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04/28/16

Physics electricity - electric force, potential, field, PE
True statements about the relationship between the electric field and electric potential include which of the following?    I. If the electric field at a certain point is zero, then the electric... more
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04/14/16

Physics question
Science question: If the car is started on a zero friction surface and zero air resistance but force of gravity acting upon it, Will it continue to travel at a constant speed even when engine is... more
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03/16/16

PHYSICS: Minimum Velocity
What is the minimum velocity required of a roller coaster at the top of a vertical loop with a radius of 7 m?   SHOW ALL WORK PLEASE. May use if needed: Fc = Fn + Fg Fc = MAc Ac = v^2/r
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03/16/16

Force and Acceleration
An engineer proposes a new roller coaster for daredevil teens and adults. Along with sizzling vertical loops and horizontal curves, her track would travel beneath a waterfall and into a dark tunnel... more
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03/15/16

Force and Acceleration
A coaster has a mass of 800 kg and a radius of 5m. What is the minimum speed required at the top of the track to ensure that the coaster does not leave the track?May use:Fc = Fn +FgFc = MAcAc = v^2... more
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03/13/16

Physics Problems (2) : Work & Power
Calculate the work done you need to do to raise a 9 kg box a vertical distance of 3 meters. Show all work. When the same box is raised the same vertical distance by pushing it up a 5m long ramp,... more
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03/07/16

Solving for Centripetal Force using a Free Body Diagram
A centripetal force of 4000N keeps a 50kg rollercoaster car traveling in a circular path at the top of a loop. Calculate the normal force of the track on the rollercoaster car.   SHOW WORK USING... more
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03/07/16

Solving for Centripetal Force using an Free Body Diagram
Gabriella (75  kg) rides a roller coaster. What is her acceleration at the top of the vertical loop if she feels like her weight is 1200N?   What is Gabriella's acceleration at the... more
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03/03/16

Explaining physics
A girl twirls a key chain in a circle if she twirls it faster, she finds that she holds the chain tighter. Explain why this is necessary.   I think it's that she has to hold the chain tighter... more
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02/25/16

what is the pressure exerted on the bottom of the pool in the deep end if the water is 3m deep and the dimensions are 7.5m x 6m?
 Hi please help me this question is due tomorrow i have no idea what to do! it is math and science calculating the pressure exerted from the bottom of a deep end of a pool.
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02/23/16

a material weighs 400N in air. density is 1600 kg/m^3, what is weight immersed in water?
I dont understand how to calculate this.  
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01/11/16

Answer question number nine please.
8.) A 1500-kg automobile, traveling at 5.0 m/s after braking, strikes a power pole and comes to a full stop in 0.1 s. Calculate the force exerted by the power pole and brakes required to stop the... more
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01/11/16

Average Force?
In a car crash, a 50 kg passenger moving at 15 m/s is stopped by an air bag in 0.10 sec. What is the average force the air bag exerts on the passenger?   Show work or explain concept using... more
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12/15/15

Work & force
I am a weight lifter and want to calculate how much "work" I do when performing the deadlift. I did the math and want to ensure my concepts and calculations are correct, as it has been a while... more
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Force

11/23/15

Find the acceleration of the block
A 2.17kg block slides down a smooth, frictionless plane having an inclination of 28 degrees. Acceleration of gravity is 9.8 m/s^2 and answer in units of m/s^2
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