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A CD starts from rest and accelerates to an angular frequency of 3.5 rev/s. Calculate
the disc s average period T and centripetal velocity at the edge of the disc when
radius is 2. 0 x 10-2m.
The total electric motor of a model train accelerates the train from rest to 0.620 m/s in 21.0cs the total mass of the train is 875g find the average power delivered to the train during the accelerates
A large sled is located with rocks and sits at the top of a snowy slope as shown in the diagram below
the sled and Rock weigh a total of 1250kg the top of the slope is 100m away from the bottom and 12.0 m vertically higher than it
the sled is initially stationary and then begins to slide without friction down the incline at what speed will the sled be travelling when it reaches the bottom of the slope in ms-1
A 12 volt battery is connected a light bulb and draws 150mA of current. What is the electrical resistance of a light bulb. How much power does it consume. How much will it cost to operate this bulb for a month,if the cost of electricity is $0.11 per kilo watt
The velocity of a particle is v=v0[1-sin(xt/T)]. Knowing that the particle starts from the origin with an initial velocity vo, determine (a) its position and its acceleration at t = 3T, (b) its average velocity during the interval t = 0 to t = T.
How much work is needed to move a −9.5 charge from ground to a point whose potential is +75 V.
Assuming compression is according to the law PV = constant. Calculate the initial
volume of gas at a pressure of 2 bar which will occupy a volume of 6 m3 when it is
compressed to a pressure of 42 bar.
A sample of helium behaves as an ideal gas as it is heated at constant pressure from 253 K to 368 K. If 20 J of work is done by the gas during this process, what is the mass of the helium sample? The universal gas constant is 8.31451 J/mol · K. Answer in units of g.
car start from rest and accelerate uniformly for 10s until it attains a velocity of 25m/s it then travel with the uniform velocity for 20s before decelerating sketch a velocity time graph of the motion of the car
What is the velocity of a 0.5 kg ball that has a momentum of 3.0 kg m/s?
#339914 on Dec 2023