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Sketch the following continuous-time signals. specify if the signal iscausal/non-causal, periodic/non-periodic, odd/even. If the signal is periodic specify its period.
x(t)=2cos(2?t)
Let us approximate an electron in the n-th shell of an atom as being like an electron in the n-th shell of a hydrogen atom with an effective nuclear charge Z. Use your knowledge of the hydrogen atom to calculate the ionization energy of this elect..
Since force is dp/dt, the force due to radiation pressure reflected off of a solar sail can be calculated as 2 times the radiative momentum striking the sail per second. In the vicinity of Earth's orbit around the Sun, the energy intensity of sunl..
A 150 g trick baseball is thrown at 57 km/h. It explodes in flight into two pieces, How much energy do the pieces gain in the explosion
A massless spring with spring constant k is vertically mounted so that the bottom end is firmly attached to the ground, and the top end is free. A ball with mass m falls vertically down on the top end of the spring, becoming attached, so that the ..
A rectangular block of copper has sides of length 12 cm, 22 cm, and45 cm. what are the currents thatthe block can carry
the trap-jaw ant can snap its mandibles shut in as little as 1.6 x 10-4 s. in order to shut both mandibles rotate
A hydrogen atom initially in the ground state absorbs a photon, determine the wavelength and frequency of the photon
A 11.0-g wad of sticky clay is hurled horizontally at a 130-g wooden block initially at rest on a horizontal surface. what was the speed of the clay immediately before impact
two capacitors c12.5mf and c25.0mf are connected in parallel. if a voltage of v120 volts is applied across the
A 0.00893-kg bullet is fired straight up at a falling wooden block that has a mass of 1.80 kg. The bullet has a speed of 551 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for..
It is 150 cm from your eyes to your toes. You are standing 196 cm in front of a tall mirror. How far is it from your eyes to the image of your toes.
pitchers mounds are raised to compensate for the vertical drop of the ball as it travels a horizontal distance of 17 m
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