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What capacitance when connected in series with a 500Ω resistor will limit the current
drawn from a 48-mV 465-kHz source to 20μA?
A spaceship of mass m has velocity v in the positive x direction of an inertial reference frame. A mass dm is fired out the rear of the ship with constant exhaust velocity (-v0) with respect to the spaceship. a) using conservation of momentum, show that dv/v0 = dm/m, b) By integration, find the dependence of v on m if v1 and m1 are the initial values. c) Can the acceleration be constant if dm/dt, the burning rate is constant.
Two forces of 15N and 8N are inclined at 600 to each other. Use calculation method to find the resultant of the forces.
A gas molecule having a speed of 300 m/sec collides elastically with another molecule of same mass which is initially at rest. After the collision the first molecule moves at an angle of 30 degree to its initial direction. Find the speed of each molecule after collision and the angle made with the incident direction by the recoiling target molecule.
A sphere of insignificantly charged size is suspended from a wire
long l is insulated and then attached to a metal wire (infinitely long) charged together
sign with sphere. Determining the deflection angle of the rope knows the ball is ejected one by one
section 2cm. The weight of the sphere is 500g, the charge on the sphere is 0.5 ×10^6 C and the charge density the wire is 10^-8 C/cm
A train starts from a rest from a station and start with uniform acceleration 0.5m/s^2 for 20 seconds. It travels with uniform velocity for 30s. The break are then applied so that a uniform retardation is obtained and the train comes to rest in a further 10 seconds. Sketch the velocity time graphy of this motion
Determine the force with which kerosene acts on a square plug with a cross-sectional area of 16 centimeters squared if the distance from the plug to the level of kerosene in the vessel is 400 millimeters
a) The man pulled a suitcase 190 meters along the airport floor. The magnitude of the tensile force was 22 N and formed an angle of 55° with the horizontal. How much work did the Driving Force do?
b) At the same time, the man was holding a mobile phone weighing 143 g in his ear. How much work did the power needed to support a cell phone do?
The body is affected by a total horizontal force of 0.75 m, the magnitude of which can be modeled according to the attached graph. How much speed does the body gain from the force when the body is initially at rest and has a mass of 1.20 kg?
The weight of the steel ball is 4.1 g. It was dropped from a height of 2.0 m into the sand. The ball sank into the sand so that the depth of the resulting pit was 27 mm. How much average force did the sand apply to the ball?
