Physics Answers

Suppose we are leaving in a two dimensional world (i:e: there is no z direction/axis).
Assuming that Gauss’s law is valid in this world, find the electric field at a distance
r from for a point charge q. Is the answer same as what we studied in class?

A parallel plate capacitor is filled with insulating material of dielectric constant ε.
Calculate the capacitance.

Suppose the z axis is uniformly charged with a constant charge density λ. Calculate
the work done to bring a charge Q from a distance y = y2 to y = y1 along y axis.

A block of mass 2 kg initially compresses a spring (k1 = 400 N/m) by 25 cm as shown below. When the
block is released, it follows a bumpy path until it reaches a second spring. Throughout the path, there is a constant
frictional force of 4 N only on the surface of the hill but the horizontal sections are frictionless. The highest point of
the hill is 24 cm above the ground and the path length from point A to C is 90 cm in total (AB = BC = 45 cm).
a) Find the speed of the object at point B.
b) Find the speed of the object at point C.
c) Find the speed of the object when the 2nd spring (k2 = 250 N/m) is compressed by 15 cm.

Winnie the Pooh is going to visit the Rabbit, who lives a kilometer away from him. He walked there at a speed of v = 2 km / h, and, having been a guest for a while, well-fed and satisfied, returned back at a speed D, = 1 km / h. How long did Winnie the Pooh spend visiting the Rabbit if the average speed of his way from home and back is v = 1 km / h?

How rocket propulsion is in accordance with the law of conservation of momentum.

I just wana know whats going with an recent love partner that has turned cold and has also been distant by the name of ashley the last time we chilled we had sex n said she loved me then went ghost haven't heard from her sense I just want clarity and advice what to do next ?

a wandering grizzly bear travels 563 meters due west, then meanders a distance of 358 meters in direction 32 degrees south of west, followed by a 208 meters distance directly south. find the magnitude of the distance that would be needed for the grizzly bear return straight to its original starting point? find the angle relative to east that the grizzly would need to head in order to return straight to its original starting point?

an airplane is flying directly south at a speed of 195 m/s when a strong 65 m/s gust of wind heading due west affects the flight of the plane. what is the resulting speed of the airplance? and the resulting direction of the airplane?

Choose question
1.a ball of mass 1kg is thrown at 8m/s and kicked a building.if it turns back at 6m/s,calculate the magnitude of change in momentum.
A.2Kg m/s B.14Kg m/s C.4Kg m/d D.0K m/s
2.if a car is moving uniformly at 8m/s,then which of the following changes uniformly?
A.acceleration B.velocity C.A&B D.none
3.car A traveling at velocity of 30m/s relative to the earth is overtaken by another car B moving at 40m/s in the same direction.what is the velocity of car B relative to car A?
A.10m/s B.70m/s C.59m/s D.20m/s
4.an automobile accelerated for 5sec.and attain a maximum speed of 10m/s.it continued at this speed 4sec.if the automobile decelerates for the next 6sec before it stops,calculate the total distance covered.
A.65m B.70m C.95m D.100m
5.calculate the force required to accelerate a 2Kg object at 5m/s2.
A.10N B.2.5N C.3N D.7N
6.determine the weight of 50 bricks;each brick has a mass of 2.5Kg
A.1200N B.2000N C.1250N D.4000N