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Classical Mechanics
A ball is thrown at 25 m/s, 20 degrees above the horizontal. What is the magnitude of the resultant velocity at a time of t = 0.35 s?
Classical Mechanics
A non-relativistic particle of mass m and charge e , moving with a velocity v
and
acceleration a
,emits radiation of intensity I . What is the intensity of the radiation
emitted by a particle of mass m / 2 , charge 2e , velocity v / 2 and acceleration 2a?
and
acceleration a
,emits radiation of intensity I . What is the intensity of the radiation
emitted by a particle of mass m / 2 , charge 2e , velocity v / 2 and acceleration 2a?
Classical Mechanics
A charged particle moves in a helical path under the influence of a constant
magnetic field. The initial velocity is such that the component along the
magnetic field is twice the component in the plane normal to the magnetic
field.
The ratio l / R of the pitch l to the radius R of the helical path is
magnetic field. The initial velocity is such that the component along the
magnetic field is twice the component in the plane normal to the magnetic
field.
The ratio l / R of the pitch l to the radius R of the helical path is
Classical Mechanics
A coin with a diameter of 2.1 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 15 rad/s and rolls in a straight line without slipping. The rotation slows with an angular acceleration of magnitude 1.7 rad/s$^2.
a) What is the initial linear velocity of the coin
b)What is the magnitude of the linear acceleration?
c)How far does the coin roll before it stops?
a) What is the initial linear velocity of the coin
b)What is the magnitude of the linear acceleration?
c)How far does the coin roll before it stops?
Classical Mechanics
The internal energy E of a system is given by E=bS^3/VN , where b is a constant and other
symbols have their usual meaning. The temperature of this system is equal to
symbols have their usual meaning. The temperature of this system is equal to
Classical Mechanics
Ane's brother Andrew leaves home for school at 8:00 am. He walks at 3.3 kph. At 8:20 am Jane discovers that Andrew has left his homework at home. She decides to follow him on her bicycle and give him his homework, but she wants to be back home in time for an online test at 9 am. What is the minimum constant speed at which she needs to ride? (Hint: At what time of day will they meet?)
Jane must ride at least ______ kph.
Classical Mechanics
If 10 ampere current is flowing through primary coil and their transformation ratio is 20.Find the value of current flowing in secondary coil?
Classical Mechanics
what is second law of thermodynamics.
Classical Mechanics
what is escape velocity.explain briefly.
Classical Mechanics
How much energy does a 100-W electric bulb consume in two hours?
