373 Answered Questions for the topic physics C

10/07/20

mass on vertical spring
A spring with spring constant k = 35 N/m and unstretched length of L0 = 2.4 is attached to the ceiling. A block of mass m = 2 kg is hung gently on the end of the spring.1) How far does the spring... more
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10/05/20

block sliding please help
A mass m = 14 kg rests on a frictionless table and accelerated by a spring with spring constant k = 4983 N/m. The floor is frictionless except for a rough patch. For this rough path, the... more
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Physics C Physics

09/24/20

PHYSICS kinematic Equations

An ice skater starts their routine at rest. At the end of their routine, the ice skater has a velocity of 3 m/s. What was the ice skater’s average velocity during their routine? Starting at rest,... more
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09/22/20

What is the magnitude of the total force between the bike tire and the road?
A physicist rides his bike around a corner of radius 21 meters at a steady speed of 7.5 m/sec. The combined mass of the physicist and the bike is 98 kg. The coefficient of static friction between... more
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09/20/20

flight problem :
Suppose they are two flights one from Tokyo to Turkey and another from Turkey to Tokyo they both start flying at one time (turkey time zone ) .Is the duration for both flights the same (will they... more
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09/20/20

flight problem :
Suppose they are two flights one from Tokyo to Turkey and another from Turkey to Tokyo they both start flying at one time (turkey time zone ) .Is the duration for both flights the same (will they... more
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09/09/20

PHYSICS SPEED X VELOCITY

The train moves 60 kilometers forward, and then 30 kilometers backwards. The whole journey takes 5 hours. What is the distance the train has travelled? What is the displacement of the train? What... more
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Physics C

09/09/20

What is the force on the charge located at 𝑥=8.00 cm in the figure below given that 𝑞=2.34 µC? Use + for rightward forces, - for leftward forces. 3 +q, 8 -2Q, 11 +q
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Physics C

09/07/20

Help please.....
1) A new car being tested on a circular test track. The track had a radios of 1.2 km. If the car is moving a constant speed of 14 m s-1 then. A) How far around the track will the car have gone in... more
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09/07/20

find average acceleration
An object is moving along the x axis. At t = 5.8 s, the object is at x = +3.0 m and has a velocity of +4.2 m/s. At t = 7.1 s, it is at x = +9.0 m and its velocity is -1.0 m/s. Find the average... more
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Physics C

09/06/20

Help please.....
A constant horizontal force of 28 N is extend by a string attached to an 8.0 kg block being pulled horizontally across a laptop. The block also experiences a frictional force of 6.0 N due to... more
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09/02/20

Two particles with charges +6e and -6e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.52 x 10-12 m apart.
Two particles with charges +6e and -6e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.52 x 10-12 m apart. What is EPEfinal -... more
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09/02/20

The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges q1 and q2 are fixed at the corners of the square.
The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a... more
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09/01/20

An empty capacitor is capable of storing 1.0 × 10-4 J of energy when connected to a certain battery. If the distance between the plates is halved and then filled with a dielectric (κ = 3.3),

An empty capacitor is capable of storing 1.0 × 10-4 J of energy when connected to a certain battery. If the distance between the plates is halved and then filled with a dielectric (κ = 3.3), how... more
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08/31/20

late to class physics question
It normally takes you 11.5 minutes to travel the 6 miles to COD along a straight road. You leave 13 minutes before Physics 2111 class begins. Delays caused by a broken traffic light slow down the... more
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08/31/20

accelerating objects
An object starts at time t = 0 seconds with a velocity of v0 = +48 m/s and undergoes a constant acceleration of a = -16 m/s2.1) At what time does the speed of the object reach zero? (The object's... more
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08/29/20

Identical point charges of +3.1 µC are fixed to three of the four corners of a square. What is the magnitude of the negative point charge that must be fixed to the fourth corner,

Identical point charges of +3.1 µC are fixed to three of the four corners of a square. What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge... more
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Physics C Physics Physics B

08/21/20

Physics (day 2) question #3
A 0.16 kg cricket ball is thrown horizontally at 30 m/s and after it is struck by a cricket paddle, it travels at -30 m/s. If the contact time of the paddle and the ball was 0.0007 seconds, what... more
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Physics C Physics Physics B

08/21/20

Physics (day 2) Question #1
What is the average acceleration of a 0.16 kg baseball if the average force the bat exerted on the ball is -20,000N?
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Physics C Physics Physics B

08/20/20

Physics question #1 part b

A 3.75 kg object tied to a string is swung around a person’s head in a horizontal circle. The length of the string is 1.0 m and the maximum force the string can withstand without breaking is 25.0... more
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08/20/20

Ventilation of a thick, metal Faraday Cage/Physics or Engineering question
How can you permit airflow in a faraday cage built of thick metal that shields high and low frequencies?
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Physics C Physics Ap Physics

08/16/20

What is the direction of the normal force acting on an object?
It is always vertically upwards It can be vertically upwards or downwards It can be vertically upwards or at an angle to the vertical in the upward direction It can never be in the horizontal... more
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Physics C Math Science Physics

07/11/20

A soccer ball is kicked with an initial horizontal velocity of 12 m/s and an initial vertical velocity of 18 m/s.
A soccer ball is kicked with an initial horizontal velocity of 12 m/s and an initial vertical velocity of 18 m/s. 1)What is the initial speed of the ball?2)What is the initial angle θ of the ball... more
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Physics C Math Science Physics

07/11/20

The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 47 degrees
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 47 degrees; with respect to the horizontal.... more
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Physics C Math Science Physics

07/11/20

Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal.
Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal. The ball is struck 3 feet above home plate. You watch as the... more
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