371 Answered Questions for the topic physics B

10/29/20

Block and ramp help
A block starts with a speed of 15 m/s at the bottom of a ramp that is inclined at an angle of 30 ̊ above the horizontal. The coefficient of kinetic friction between the block and the plan is 0.2.... more
Follows • 1
Expert Answers •1

10/29/20

Roller coaster help
roller coaster has a mass of 840 kg. It is launched horizontally from a giant spring with spring constant 31,000 N/m into a frictionless vertical loop-the-loop track of radius 6.3 m. What is the... more
Follows • 1
Expert Answers •1

10/29/20

Urgent help physics

You are driving your car uphill along a straight road. Suddenly you see a car run a red light and enter the intersection just ahead of you. You slam on your brakes and skid in a straight line to a... more
Follows • 1
Expert Answers •1

10/29/20

Physics kinematic
1. as the race begins you accelerate at a constant rate of 0.49 m/s^2 . the finish line is 100m away from the starting line, what was your velocity as you crossed the finish line.for this question... more
Follows • 1
Expert Answers •1

10/29/20

Physics Kinematic Equations
1. the finish line is 100m away from the starting line, you manage to get there in 4 seconds (10 seconds faster than your friend) what was your average velocity during the race?for this question... more
Follows • 1
Expert Answers •1

10/23/20

Physics question
1. if during a 60 second jog, my average velocity is 5 m/s, how far from my starting point do i end up(what is my displacement ) in meters
Follows • 1
Expert Answers •1

10/21/20

URGENT HELP PHYSICS CART
In the physics lab, a cart of mass m1 = 0.30 kg moves with velocity v1 = 2.5 m/s on a frictionless track. It collides with another cart of mass m2 = 0.40 kg, which is initially stationary. The... more
Follows • 1
Expert Answers •1
Physics B Math Physics Physics C

10/21/20

 In the movie clip from Ice Age, dodo birds are chasing a watermelon that accidentally falls off a cliff
 In the movie clip from Ice Age, dodo birds are chasing a watermelon that accidentally falls off a cliff, The watermelon has a horizontal velocity of 8.0 m/s. It is in free fall for 6.0s. How far... more
Follows • 1
Expert Answers •1

10/16/20

Physics, 5 questions

1. The force of a surface pushing back on an object is called the _____ force?a. gravityb. normalc. tensiond. friction2. the force of a rope, string, or similar object pulling on an object is... more
Follows • 1
Expert Answers •1

10/07/20

restricted block on spring
A block of mass m = 4.5 kg slides back and forth on a frictionless horizontal track. It is attached to a spring with a relaxed length of L = 3 m and a spring constant k = 17 N/m. The spring is... more
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •2

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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.