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A blimp is initially at rest, hovering, when at t = 0 the pilot turns on the motor of the propeller. The motor cannot instantly get the propeller going, but the propeller speeds up steadily. The steadily increasing force between the airand the propeller is given by the equation F = kt, wherek is a constant. If the mass of the blimpis m, find its position as a function of time. (Assume that during the period of time you're dealing with, the blimp is not yet moving fast enough to cause a signi cant backward force due to air resistance.)
What is the speed of bulky cart after the collision
A moon orbits a planet because of the gravitational force between them. Similarly, each body also experiences a tidal force due to gravity. Consider how the magnitude of the tidal force changes as distance between a planet and moon varies.
A very long solenoid of circular cross section with radius r= 5.4cm has n= 86.0 turns/cm of wire. An electron is sitting outside the solenoid, at a distance r= 5.90 cm from the solenoid axis. What is the magnitude of the force on the electron whil..
A block is on a horizontal surface (a shake table) that is moving back and forth horizontally with simple harmonic motion of frequency 2.3 Hz. How great can the amplitude of the SHM be
An initially uncharged 3.31-?F capacitor and a 8.11-k? resistor are connected in series to a 1.50-V battery that has negligible internal resistance. Calculate the circuit\'s time constant in milliseconds
The turntable of a record player has an angular speed of 9.7
If a body is at rest with respect to the sun (Msun=1.99 x 10^30 kg) and is a distance 1.7 x 10^9 m from the sun. What will be its speed when it reaches the sun's surface
Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 518 W/m2. (a) Taking the average Earth–Sun separation to be 1.496 1011 m, calculate the total power radiated by the Sun. W (b) Determine the maximum value of the ele..
A spherical object has an outside diameter of 52.0 cm. Its outer shell is composed of aluminum and is 2.40 cm thick. What is the object's average density
A 1.8 cm high object is placed 30 cm from a concave mirror with radius of curvature 30 cm. Determine the object's image size
What is the charge on each sphere if the two charges are alike?
Three objects are connected on the table as shown in Figure P5.44. The table is rough and has a coefficient of kinetic frictionof 0.350. find the acceleration of each object and their directions
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