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A block lies on a horizontal frictionless surface. A horizontal force of 100 N is applied to the block giving rise to an acceleration of 3.0 m/s2.
(a) Determine the mass of the block.
(b) Calculate the distance the block will travel if the force is applied for 10 s.
(c) Calculate the speed of the block.
A car rounds a banked curve. The radius of curvature of the road is R .the banking angle is a. the coefficient static friction is f.
Adjacent antinodes of a standing wave on a string are 15.0 cm apart. Find the maximum and minimum transverse speeds of a point at an antinode
A hydraulic lift has pipes of area A1=1 cm^2, A2= 40 cm^2. If I wish to lift a weight of 2000 N at the larger end, what force must i exert at the smaller end
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
150ml of water at 20.0C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 6.00. How much heat energy is exhausted into the room
In one design, the large spring with spring constant 2.0×10^4 was placed behind the cannon. The other end of the spring braced against a post that was firmly anchored to the ship's frame.
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
An electrical load operates at 240 V rms. The load absorbs an average power of 8 kW at a lagging power factor of 0.8. Calculate the complex power of the load
q1. consider a too-small space station that consists of a 3.1 m radius rotating sphere. a man standing inside is 2.0 m
Three resistors of resistance 2 ?, 3 ? and 4 ? are connected in series with a 10 V battery. In which resistor is the greatest power dissipated
A magnifying glass with focal length 15 centimeters is placed 10 centimeters above a stamp. find Where is the image situated
The objective lens of the refracting telescope at the Lick Observatory in California has a focal length of 57 ft. What is the refractive power of this lens
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