Physics Answers

Consider a fever thermometer that contains 0.01 cm³ of mercury, Find the diameter of the capillary if a 1 C° change corresponds to a level change of 0.5 cm . Assume the glass does noe expand.

Consider a fever thermometer that contains 0.01 cm³ of mercury, Find the diameter of the capillary if a 1 C° change corresponds to a level change of 0.5 cm . Assume the glass does noe expand.

a beam of electrons travels at right angles of a speed uniform magnetic field in a force of 6.4x10^-4 N. how much current does the beam carry over a 145cm long wire? 9.0x10^-6 m/s througha 4.0x10^-2 T

State the mathematical model that can be used to compute for the paralytic angle hence solve for the paralytic angle

An observer at rest near the source of the sound with f = 784 Hz. Another source of sound with 775 Hz is moving toward the observer at 2 m/s. If the v of the sound waves in air is 340 m/s, what is the beat f heard by the observer?

Suppose the x − y plane is electrically charged with a constant charge density σ.

Find the electric field at a hight h from the x − y plane.Use gauss law

Each of two small spheres is charged positively, the total charge being 52.6 wC. Each sphere is repelled from the other with a force of 1.19 N when the spheres are 1.94 m apart. Calculate the charge on each sphere. 

Compute

a. What is the acceleration of a car that goes from 20 to 30 mi h

in 15 s?

b. At the same acceleration, how long will it take the car to go

from 30 to 36 mi/h?

a stone is thrown upwards with an initial velocity of 25m/s at an angle of 30 degree to the ground
how long will it take betweeeen when the stone was thrown and when it comes back to the ground?

A towing van tows a car of mass of 1500kg along a level road and accelerate at 0.8m/ what is the tension in the towing van