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159 Answered Questions for the topic physics B

Physics B Science Physics

5h

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
Physics B Physics Geography

2d

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
Physics B Physics Geography

2d

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
Physics B Science Physics

13d

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

15d

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

20d

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

20d

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

20d

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

22d

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

22d

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

24d

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
Physics B Physics Physics C

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
Physics B Physics Physics C

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?
Physics B Physics Physics C

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

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?
Physics B 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
Physics B Math Science

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
Physics B Math Calculus

07/11/20

A blue ball is thrown upward with an initial speed of 23.5 m/s, from a height of 0.7 meters above the ground. 2.9 seconds

A blue ball is thrown upward with an initial speed of 23.5 m/s, from a height of 0.7 meters above the ground. 2.9 seconds after the blue ball is thrown, a red ball is thrown down with an initial... more
Physics B Math Calculus

07/11/20

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds.

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds. It then continues at a... more
Physics B Calculus

07/09/20

Photography Maximum Angle

A photographer is taking a picture of a 4-foot painting hung in an art gallery. The cameralens is 1 foot below the lower edge of the painting. How far should the camera be fromthe painting to... more
Physics B Physics Physics C

06/26/20

hello to all the best tutors here !

I have recently a problem with one of the fundamental of physics book which is chapter 31 and i cant really solve the problems specially the RLC circuits , is there anything i can do for... more
Physics B Physics

06/25/20

please answer this :

As a loop of wire with a resistance of 10  moves in a constant non-uniform magnetic field,it loses kinetic energy at a uniform rate of 5 mJ/s. The induced current in the loop:
Physics B Physics

06/22/20

please answer :

A solenoid is 3.0 cm long and has a radius of 0.50 cm. It is wrapped with 500 turns of wirecarrying a current of 2.0 A. The magnetic field at the center of the solenoid is:
Physics B Physics

06/22/20

please answer :

Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in the samedirection. The force per unit length in N/m of one wire on the other is:
Physics B Physics

06/21/20

please answer this :

In a certain mass spectrograph, an ion beam passes through a velocity filter consisting ofmutually perpendicular fields E and B. The beam then enters a region of another magnetic fieldB '... more
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