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A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 x 103 kg and maintains an acceleration of +4.20 m/s2 for 5.50 s. Assume that a single horizontal force (not shown) accelerates the vehicle. Determine the average power generated by this force.
A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 4700 N/C and is directed in the positive x direction. Determine the magnitude of the net electric field at x = -0.17 m
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm?
q1. dennis driving his 600 kg car makes a 90 degree turn. his speed before the turn is 15.0 ms and after the turn are
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
Assuming your skin temperature is 37.2°C and the temperature of your surroundings is 20.7°C, Decide the length of time required for you to radiate away the energy gained by eating a 281 Calorie ice cream cone. Let the emissivity of your skin be 0.915..
A block of mass 4.6 kg slides 15 m from rest down an inclined plane making an angle of 28 o with the horizontal. what is the retarding force due to friction
q1. a small car of mass 831 kg is parked at the back a small truck of mass 1553 kg on a level road. the brakes of both
An inductor (L = 400 mH), a capacitor (C = 4.43 µF), and a resistor (R = 500 ?) are connected in series. Determine the phase angle by which the current leads or lags the applied voltage
The mass of the blue puck shown below is 25.0% greater than the mass of the green puck. Before colliding, the pucks approach each other with momenta of equal magnitudes and opposite directions, and the green puck has an initial speed of 7.0 m/s. Find..
A ceiling fan is turned on and a net torque of 1.6 N·m applied to the blades. What is the angular acceleration of the blades
You hang the rod vertically and attach a 74 kg mass to the bottom, and you observe that the bar becomes 1.74 cm longer. From these measurements, it is possible to conclude the stiffness of one interatomic bond in titanium.
charges of -q and 2q are fixed in place with a distance of 1 m between them. a dashed line is drawn through the
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