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A 170-g hockey puck sliding on ice perpendicularly impacts a flat piece of sideboard. Its incoming momentum is 6.50kg*m/s . It rebounds along its incoming path after having suffered a momentum change (magnitude) of 8.80kg*m/s
A) If the impact with the board took 33.0ms , determine the magnitude of the average force exerted by the puck on the board. (in N)
B) Determine the magnitude of the the final momentum of the puck. (in kg * m/s)
An empty elevator has a mass of 365.2 kg, and the people inside have a total mass of 172.1 kg. What is the net force on the elevator
The magnetic field was generated by a Helmholtz coil pair like the one described in the manual. You measure the coils and determine that the average diameter is 151 millimeter. Find the magnitude of the current through the coils
One and one-half moles of an ideal monatomic gas expand adiabatically, performing 7910 J of work in the process. What is the change in temperature of the gas during this expansion
The two stars in a binary star system have masses 1.7×10^30 kg and 6.1×10^30 kg. What is the speed of the lightest star
A lead ball, with an initial temperature of 25oC, is released from a height of 101.0 m. It does not bounce when it hits a hard surface. Presume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball ..
a small ferryboat is 4.00 m wide and 6.00 m long. when a loaded truck pulls onto it the boat sinks an additional 4.20
A truck covers 40.01 m in 7.615 s while smoothly slowing down to final speed 1.40 m/s. What is the original speed and what is the acceleration.
A university campus radio transmitter transmits at a power of 1921 Watts at a frequency of 98.6 MHz. How many photons are emitted by the transmitter each second
As morning sunlight falls on a tethered helium balloon, it expands from a volume of 1.10 cross 103 m3 to a volume of 1.17 cross 103 m3. how much does the helium's internal energy increase
A sled of mass m is given a kick on a frozenpond. The kick imparts to it an initial speed of 2.00m/s. find the distance the sled moves before it stops
A 70.0Hz generator with an rms voltage of 165Vis connected in series to a 3.35k ohm resistor and a 2.5uF capacitor, Find the phase angle between the current and the voltage
When a potential dissimilarity of 138 V is applied to the plates of an air-filled parallel-plate capacitor, the plates carry a surface charge density of 4.00*10-10 C/c m2. What is the spacing among the plates?
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