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A force gives a 100-kg mass an acceleration of 2 m/s2. If the same force acts on a mass of 1000 kg, what acceleration does it produce?
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket
A square steel plate is 0.2 m on a side and 4 mm thick. Find the displacement of the plate
The plane of a 5.10cm by 9.00cm rectangular loop of wire is parallel to a 0.220T magnetic field, What is the magnetic moment of the loop
A 150-? resistor is connected in series with a 0.250-H inductor. The voltage across the resistor is vR=(3.80V)cos[(720rad/s)t]. Derive an expression for the circuit current
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
A string is58.0cm long and has a mass of 3.00 g. A wave travels at5.25m/s along this string. A second string has the same length, butone-fourththe mass of the first. If the two strings are under the same tension, what is the speed of a wave along ..
Regarding the Earth and a cloud layer 700 m above the Earth as the "plates" of a capacitor, calculate the capacitance of the Earth-cloud layer system. What is the maximum charge the cloud can hold
Illustrate what elements of the marketplace in which Mega Tech operates led the organization to believe that project management would improve its operations?
A rotating cylinder about 16 {rm km} long and 6.8 km in diameter is designed to be used as a space colony. With what angular speed should it rotate so that the residents on it will experience the same acceleration due to gravity as on Earth.
Charges of 6.0 uC are placed at corners of a square that has sides of 2.0cm. Find the magnitude and direction of the force on the charges
when a 2.75kg fan having blades 18.5 cm long is turned off, its angular speed decreases uniformly from 10 rad to 6.3 rad/s in 5 sec. Through what angle does it turn
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