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two forces act on a14 kg object. the first force has a magnitude of 70 N and is directed 28 north of east. the second force is 36.5 N 48.8 south east , what is the acceleration of the object resulting from application of these two forces to the object?
q1. a 485 kg sailboat has an acceleration of 0.50 ms2 at an angle of 51deg north of east. find magnitude and direction
An engine with an output of 300 W has an efficiency of 35.0 %. It works at 13.00 cycles/s. How much work is done in each cycle
the minute hand of a wall clock measures 13 cm from its tip to the axis about which it rotates. the magnitude and angle
The figure below shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. estimate the density of the unknown liquid
it is believed that a large electric fish known as torpedo occidentalis uses electricity to shock its victims. a
A current I =13 A is directed along the positivex-axis and perpendicularl to a magnetic field. A magneticforce per unit length of 0.14 N/m actson the conductor in the negative y-direction.
A bicycle wheel has a diameter of 64.1 cm and a mass of 1.81 kg. suppose that the wheel is a hoop with all of the mass concentrated on the outside radius. The bicycle is placed on a stationary stand and a resistive force of 120 N is applied tangent..
a truck moving at 13.3 m/s hits a concrete wall. what is the average force exerted on the wrench by the wall
the water in a deep underground well is used as the cold reservoir of a carnot heat pump that maintains the temperature
a pellet gun fires ten 2.9 g pellets per second with a speed of 540 ms . the pellets are stopped by a rigid wall. what
question in rutherfords famous scattering experiment alpha particles helium nuclei were fired at 2.0 x 107 ms over a
A woman on a bridge 80.5 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. Find the speed of the raft
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