3,798 Questions for the topic physics

6h

speed and velocity
A particle at rest undergoes an acceleration of 2.6 m/s 2 to the right and 4 m/s 2 up. a) What is its speed after 7.4 s? Answer in units of m/s A particle at rest undergoes an acceleration of 2.6... more
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20h

Physics inclined plane question
An inclined plane is slowly lifted and has a mass of 10-kg resting on it. At exactly 34 degrees, the mass breaks loose and starts to slide down the plane. What is the coefficient of friction? Is... more
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20h

OnRamps UT Austin
Boltzmann’s constant is 1.38066×10−23 J/K, and the universal gas constant is 8.31451 J/K · mol. If 3.1 mol of a gas is confined to a 2.8 L vessel at a pressure of 10.4 atm, what is the average... more
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20h

Physics deep space question
In deep space, a kilogram of mass:a) Weighs 9.8 Newtonsb) Has zero massc) Has no inertiad) Has no weight
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20h

A rock was thrown from the top of a building that is 192 feet tall. it reached its maximum height of 256 feet 2 seconds after it was thrown. after how many seconds will the rock hit the ground?
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20h

Physics acceleration and tension question
A 10-kg mass is laying flat on a table with a string attached that runs over the edge of the table via a pulley. You have a 20-kg mass attached to the string that is hanging off the table. The... more
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21h

Physics box of books question
You have a box of books on the floor that weighs 450 Newtons. You attach a rope to the box at an angle of 45 degrees above the horizontal. If the coefficient of kinetic friction is 0.15 and the... more
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21h

Physics space station question
A space station has a diameter of 340 meters and the occupants who are at the other rim have an acceleration of 6.2 m/s^2. What is the angular velocity of the station?
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06f247fc 42b4 4c7f 855e a3ccf26b297c

21h

Physics elevator question
An elevator has an upward acceleration of 3.2 m/s^2. How much does an occupant of mass 80 kg weigh in Newtons while riding in the elevator?
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21h

Physics rollercoaster question
A rollercoaster is making a loop. At the top you are weightless and the coaster is moving at 20 m/s. What is the radius of the loop?
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1d

Physics question
A 2.40 kg mass is attached to a light cord that is wrapped around a pulley of radius 7.20 cm, which turns with negligible friction. The mass falls at a constant acceleration of 3.05 m/s2. Find the... more
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1d

Physics Question
A heavy concrete panel is being lifted into position in a building by means of a crane (see figure below). The tension of 1.70  104 N in the supporting cable produces a torque with respect to point... more
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1d

Physics force question
You have a box of books on the floor with a total mass of 100-kg. You attach a rope to the box at an angle of 30 degrees above the horizontal. If the coefficient of kinetic friction is .22 between... more
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1d

Physics attraction question
What is the attraction between two spherical masses, one 120,000 kg and the other 400,000 kg if separated by 100 meters?
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1d

Physics acceleration question
A 10-kg block is sitting on an inclined plane. There is a cord attached that goes over the top of the plane and has a 15-kg mass attached via a pulley. The plane is 34 degrees and the coefficient... more
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1d

2 part Physics question
You have a box of books on the floor with a total mass of 100-kg. You attach a rope to the box at an angle of 30 degrees above the horizontal. If the coefficient of kinetic friction is... more
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436c9dcc 4c77 4fc7 97b7 fddbade4ea0f

1d

Physics acceleration question
A 10-kg brick is being pulled by a string that is horizontal. The coefficient of friction is .32 and the tension force is 50N. What will be the acceleration of the brick?
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1d

Physics plane question
A plane is banking at an angle of 35 degrees to the horizon. The mass of the plane is 2000 kg. What is the speed of the plane if it is turning in a circle of 325 meters diameter?
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1d

Physics Speed Question
A car is going over a rounded hill with a radius of 50 meters. At what speed would the car’s occupants weigh ½ of their regular weight?
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1d

About Physics travelling
A hockey puck is traveling at 12.5 m/s on a floor. The coefficient of friction is 0.15 so how far will it travel before coming to a stop?
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1d

Physics question
How fast would an airplane have to go to make a loop of 220 meters radius to keep from fallout out of the loop or taking negative G’s?
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1d

Two 125,000.0-kg objects are positioned such that their centers are 75,000.0 m apart. What is the gravitational force between the two objects? (G = 6.674 × 10–11 N(m/kg)2)
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1d

Another Physics question about radius
How much would a 100-kg object weigh at one earth’s radius above the earth?
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031f0038 5389 4de0 882c 60db62f2f63a
9f082d98 f73c 4b61 84e4 34325ab15df9

1d

Physics question for the radius
What is the radius of turn for an airplane that is traveling at 42 m/s with a 35-degree bank angle?
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9f082d98 f73c 4b61 84e4 34325ab15df9

2d

A laser generates a pulse at 450 nm containing 2.75 × 10^15 ​ ​​ photons. What is the energy of the pulse?
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