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A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of the truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels
The passengers on the ship measure a time of 40h for the trip. What time would an observer on one of the two planets measure for the same trip?
It collides with and sticks to the 575g glider. a.What is the amplitude of the subsequent oscillations? b.What is their period?
What is the electric field strength at a point in space where a proton (m=1.67x10^(-27)kg) experiences an acceleration of 1million g's ?
A pitcher throws a fastball horizontally at a speed of 140 km/h toward home plate, 18.4m away. If the batter's combined reaction and swing times total 0.35s, how long cant he batter watch the ball
what is the necessary optical aperture diameter at a blue wavelength? At a red wavelength? At an NIR wavelength? If one optical system is to meet the design goal at all three wavelengths. What apert
For a damped oscillator with a mass of 350 g, a spring constant 75 N/m and a damping coefficient of 78 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at
The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is the magnitude of the gravitational attraction between the two?
Which of the following terms best describes the relationship between the newly synthesized RNA molecule and the DNA template strand?
Astronomers detect a large asteroid thats far away but still heading toward earth at 754 m/s. A straight trajectory would bring it within 3.3 x 10^8 of the earth. However, the earth's gravitational
The potential at location A is 4545 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 1340 V, and when released
A woman with blood type A has two children. One has type O blood and the other has type B blood.
What mass (in grams) of steam at 100°C must be mixed with 192 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 58.0°C? The specific heat of wate
When the altitude of the plane is 2.8 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle θ?
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day when the temperature is 31.5degrees Celsius?
What are the experiments to prove pressure flow as the mechanism of translocation in angiosperms?
A 8.6{rm kg} dog takes a nap in a canoe and wakes up to find the canoe has drifted out onto the lake but now is stationary. He walks along the length of the canoe at 0.54{rm m/s} , relative to the w
What causes electron energy in the resting stage of a neuron?
Find the magnitude and direction of the velocity with which the fuel tank hits the ground if it is from each plane. Give the directional angles with respect to the horizontal.
At a maximum level of loudness, the power output of a 75-piece orchestra radiated as sound is 67.8 W. What is the intensity of these sound waves to a listener who is sitting 28.4 m from the orchestra?
A hot-air balloon is rising straight up with a speed of 2.0 m/s. What is the magnitude of forces with the length of the force vectors.
The direction of P is parallel to the axis of the platform, and the magnitude of Pis equal to maω/4. Find the resulting values of the processional rate Ω, the wobble rate φ, and the
Which character of cell membrane may explain why fat soluble substances such as chloroform end aether rapidly effect cells?
Discuss the advantages and disadvantages of nuclear physics. Do you know anything about nuclear waste from nuclear power plants and their disposals mechanism? Discuss the application of half-life.
A block with mass m = 5.3 kg is attached to two springs with spring constants kleft = 33.0 N/m and kright = 49.0 N/m. The block is pulled a distance x = 0.27 m to the left of its equilibrium positi