Physics

Select in the ticker-timer a frequency of 25 Hz or 50 Hz. Determine the period of the ticker-timer.
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In this problem we will compare two different monatomic ideal gases, which we will call gas A and gas B. Throughout thisproblem, the mass of a gas A atom is twice the mass of a gas B atom.a) Suppose gas A and gas B have the same temperature. What is the ratio of the rms speed of a gas A atom over the rms speed ofa gas B atom?b) Instead, if the rms speed of a gas A atom is the same as the rms speed of a gas B atom, what is the ratio of their temperatures?c) Now suppose again that gas A and gas B start with the same initial temperature, and suppose the gases are in (separate)containers with the same fixed volume. The same amount of heat flows into each gas. The temperature of gas A doubles, but thetemperature of gas B triples. What is the ratio of the heat capacity of gas A over the heat capacity of gas B? What is the ratio ofthe final pressure of gas A over the final pressure of gas B?
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light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0. in this liquid, what is the wavelength of the light?
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the diagram below shows a top-down view of two pucks colliding on a frictionless surface. one puck has twice the mass of the other. the pucks are covered with velcro so they stick together after the collision. what is the final velocity of the two pucks?
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a very myopic man has a far point of 38.9 cm. what power contact lens (when on the eye) will correct his distant vision?
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when the light ray enters the air from the water, will the refracted light ray bend further from or closer to the normal?
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When heal flows between systems Entropy
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Rearrange Coulomb's law and find the magnitude of each charge.Express your answer to two significant figures and include the appropriate units.Two point charges are separated by 5.0 cm . The attractive force between them is 16 N . Suppose that the charges attracting each other have equal magnitude.
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When two unknown resistors are connected in series with a battery, the battery delivers total power Ps and carries a total current of I. For the same total current, a total power Pp is delivered when the resistors are connected in parallel. Determine the value of each resistor. (Use any variable or symbol stated above as necessary.)
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car travelling at a constant velocity covers a distance of 100 m in 5.0 s. the thrust of the engine is 1.5 kn. what is the power of the car?
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suppose a woman does 350 j of work and 9250 j of heat is transferred from her into the environment in the process.(a) What is the decrease in her internal energy, assuming no change in temperature or consumption of food? (That is, there is no other energy transfer.)(b) What is her efficiency?
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Which description best explains the distortion of color at the bottom of the leaves in the image?
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what type of microscope has the highest resolution and can resolve objects less than 1 angstrom apart?
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A steel ball weighing 64 lb is suspended by a spring which is stretched 4 ft by the weight. If, at time t = 0, the ball is displaced 6 in below its equilibrium position and released, what will the position x = x(t) (positive downwards) of the ball be at time t (sec)? If the ball will execute pure oscillations, find the amplitude, frequency and period of the oscillations. How fast will the ball passes its equilibrium position each time? Assume that friction may be neglected and take g = 32 ft/sec
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A spring-loaded toy gun is used to shoot a ball straight up in the air. (Figure 1) The ball reaches a maximum height H, measured from the equilibrium position of the spring.-The same ball is shot straight up a second time from the same gun, but this time the spring is compressed only half as far before firing. How far up does the ball go this time? Neglect friction. Assume that the spring is ideal and that the distance by which the spring is compressed is negligible compared to H.
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what is the frequency of a standing wave with a wave speed of 12 m/s as it travels on a 4.0-m string fixed at both ends?
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a seismographic station receives s and p waves from an earthquake, separated in time by 17.3 s. assume the waves have traveled over the same path at speeds of 4.50 km/s and 7.80 km/s. find the distan
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a 7.50g-bullet has a speed of 555 m/s as it leaves the muzzle of a rifle. if the barrel of the rifle is 0.950 m, what is the average force exerted on the bullet by the ammunition?
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As shown in the above diagram, a positive charge, Q1 = 2.6 C, is located at a point, x1 = -3.0 m, and a positive charge, Q2 = 1.4 C, is located at a point, x2 = +4.0 m.a. Find the magnitude and direction of the Electric Field at the origin due to charge Q1.b. Find the magnitude and direction of the Electric Field at the origin due to charge Q2.c. Find the magnitude and direction of the net Electric Field at the origin.
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A metal filament Lamp rated at 750w, 100v into be connected in series with a capacitor across a 230v, 60hz supply. Calculate the capacitance required
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it the frequency of a wave is increased itsandwill decrease but itswill stay the same.
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two stationary point charges q1 and q2 are shown in the figure along with a sketch of some field linesrepresenting the electric field produced by them. what can you deduce from the sketch?
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a coffee filter of mass 1.4 g dropped from a height of 4 m reaches the ground with a speed of 0.9 m/s^2 how much kinetic energy
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how large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius 145 m at a speed of 130 km/h ?
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