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A Roman centurion fires off a vat of burning pitch from hiscatapult at 18.2m/s, 37 degrees above the horizontal.
a. how long was the vat in the air?
b. determine the horizontal component of the initial velocityof the vat.
c. determine the range of the vat.
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. What is the peak value of the magnetic field at the detector due to the wave
q1. a certain groove in phonograph record moves past the needle at 36 cms. if the wiggles in the grove are 0.1 mm apart
Determine the position q1 of the image formed by the first converging lens.
A 200-turn rectangular coil having dimensions of 3.0 cm by 5.0 cm placed in a uniform magnetic field of magnitude 0.90T. Find the current in the coil if the maximum torque exerted on it by the magnetic field is 0.15 N.m
An elevator ascends 200m with maximnum speed of 5.0 m/s. how far deos the elevation move while accelerating to full speed from rest
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
The Large Hadron Collider, or LHC, to be completed later this year, accelerates protons around a nearly circular track of circumference 26.66 km to a momentum of up to 3.74e-15 kg m/s, For the same magnetic field as in part (a), what is the momentu..
A wind is pushing an ice skating armadillo with a force of F = 12x2i - 4y3j + 4zk (N). How much work is done by the force
What did Newton discover about gravity? 1. All objects near the Earth free fall with the same acceleration. 2. Any force on a planet would be directed along its path. 3. Gravity only happens on Earth.
Protons and electrons can be given very high energies in particle accelerators. What is the wavelength of an electron that has been accelerated to 99% of the speed of light
You switch from a 1.40NA 60x oil immersion objective to a 0.5NA 20x air immersion objective. What is the acceptance angle (in degrees) for the oil immersion objective
A 0.2 m^3 rigid tank initially contains refrigerant 134a at 1 MPa, saturated vapor. The tank is connected to a supply line that contains refrigerant 134a at 1.2 MPa, 30 degrees C. Refrigerant is allowed to enter the tank until the tank contains sa..
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