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A projectile is fired up into the air at a speed of 199 m/s at an angle of 17° relative to the horizontal. Determine the maximum height the projectile will reach.
m
A thin, horizontal, 10-cm-diameter copper plate is charged to 3.5nC. If the electrons are uniformly distributed on the surface, what are the strengths and direction of the electric field
A 12kg box is decelerated from an initial speed of 20m/s to rest in a distance of 13m while traveling up a 42 degree incline. What was the net work done on the box by friction
A soccer ball with mass 0.446 kg is initially moving with speed 1.40 m/s. Over what distance must the player's foot be in contact with the ball to increase the ball's speed to 6.40 m/s
An ambulance siren is the source of sound emitted with a frequency of 1600 Hz. What is the frequency of the reflected sound wave heard at the ambulance
A fan is spinning at 900 rpm. When its motor is turned off it makes 75 rev before coming to a stop. If the work down by dissipative forces is 44.4J, Find the moment of Inertia of the fan and the torque due to dissipative forces.
The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 294 K. Determine the temperature of the well water
How much time does the object take to reach the ground.
A step-up transformer has 26 turns on the primary coil and 770 turns on the secondary coil. what input current and voltage are needed
A pipe open only at one end has a fundamental frequency of 214 Hz. A second pipe, initially identical to first pipe, is shortened by cutting off the portion of the open end. Now, as both pipes vibrate at their fundamental frequencies, the beat freque..
The starter motor of a car engine draws a current of 100A from the battery. The copper wire to the motor is 4.0mm in diameter, How much charge passes through the starter motor
A car is traveling 23 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.0 m/s2. Explain how far does the car go before it stops?
0.97 L of 16C water is placed in a refrigerator. What is the refrigerator's coefficient of performance
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