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An object is launched at a speed of 35 m/s at an angle of 28 degrees above the horizontal from the ground and travels some range. It is shot again at the same speed but a different angle which gives the same range. How much higher does the object reach above the ground when shot at the second angle compared to the first angle? Answer in meters.
An electron follows a helical path in a uniform magnetic field of magnitude 0.642 T. What is the electron's speed
Two people, one of mass 75kg and the other of mass 60kg, sit in a rowboat of mass 80 kg. With the boat initially at rest, two people, who have been sitting at opposite ends of the boat 3.2 m apart from each other, now exchange seats. How far and i..
If a block of wood floating on a pool of water has a volume of 37 cm3 and displaces a volume of water of 30 cm3, what is the density of the wood
A power supply has an open-circuit voltage of 35.0 V and an internal resistance of 2.00 O. What additional resistance should be added in series
A tuning fork of unknown frequency makes 6 beats per second with a standard fork of frequency 431 Hz. What is the frequency of this fork
Capacitors C1 = 5.0 µF and C2 = 2.0 µF are charged as a parallel combination across a 250 V battery. Calculate the resulting charge on each capacitor
A van der waals gas undergoes an isothermal expansion from specific volume V1 to specific volume V2, Calculate the change in the specific Helmholtz function
A man walking on a tightrope carries a long a pole which has heavy items attached to the two ends. what difference would it make to his balance
A system consists of 2.0kg of water at 75 degrees Celsius. 25 J of work is done on the system by stirring with a paddle wheel, What is the change in internal energy of the system
Find the acceleration of a forklift of mass 1400 kg pushed by a force of 2100 N that is opposed by a frictional force of 425 N.
A person pushes a 12.3-kg shopping cart at a constant velocity for a distance of 16.5 m on a flat horizontal surface. calculate the work done by the pushing force
A series RLC circuit has components with the following values: L = 22.0 mH, C = 86.0 nF, R = 25.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit.
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