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A Carnot engine operates between a high temperature reservoir at 435 K and a river with water at 280 K. If it absorbs 3700 J of heat each cycle, how much work per cycle does it perform?
How much power is radiated from each panel? Assume that the panels are in the shade so that the absorbed radiation will be negligible.
The mases of the three dice are 12.5 g, 14.3 g, and 18.9 g, and their respective coordinates after one particular throw are (0.117 m, -0.399 m), (-0.285 m, 0.461 m), and (-0.413 m, -0.343 m). What a
A block of mass 0.222 kg is placed on the end of a spring which has a stiffness of 150. N/m. It is pulled down 2.60 cm and released. What is the frequency of oscillation?
The magnetic field is 0.08 Tesla and is going into the page. Determine the magnetic force (magnitude and direction) that acts on the particle. Will the particle experience any acceleration due to th
A converging lens has a focal length of f = 27 cm. An object is placed 37 cm from the lens. Find the size of the image in cm if the object has a height of 7 cm. Express the answer with one decimal p
A person reading a european newspaper finds that the low temperature the night before in stockholm was -16 degree Celcius. What is the equivalent temperature in degrees Farenheit?
An unstable particle is created in the upper atmosphere from a cosmic ray and travels straight down toward the surface of the Earth with a speed of 0.99540c relative to the Earth. A scientist at res
A 500 g steel rod 30 cm in length is pivoted about its center and rotated at 300 rpm. A) What is the angular momentum?
What distance, as measured in the laboratory, does the pion travel during its average lifetime?
A 1120 kg car experiences an impulse of 30,000.0 N · s during a collision with a wall. If the collision takes 0.43 s, what was the velocity of the car just before the collision?
A 10 lb sphere 6 inches in diameter and a 10lb hoop 12 inches in diameter roll down a 30 degree slope, find the angular acceleration and the acceleration of the mass center for the 2, Find the angul
You're an engineer designing kitchen appliances, and you're working on a two-speed food blender, with 3700 rpm and 2200 rpm setting. Specs call for the blender to make no more than 60 revolutions wh
What does she calculate for the minimum thickness of the film? Equation is 2(t)=(m+1/2)(lamda/n)
A 28.5 g bullet strikes a 0.520 kg block attached to a fixed horizontal spring whose spring stiffness constant is 7730N/m . The block is set into vibration with an amplitude of 35.0 cm. What was th
A 1200 kg cannon fires a 100.0 kg cannonball at 35 m/s. What is the recoil velocity of the cannon? Assume that frictional forces are negligible and the cannon is fired horizontally.
If one vibration has 5.4 times the energy of a second, but their frequencies and masses are the same, what is the ratio of their amplitudes?
A 480 kg car moving at 14.4 m/s hits from behind another car moving at 13.3 m/s in the same direction. If the second car has a mass of 570 kg and a new speed of 17.9 m/s, what is the velocity of th
A 1200 kg car moving at 15.6 m/s collides with a stationary car of mass 1500 kg If the two vehicles lock together, what is their combined velocity immediately after the collision?
A 4.80 kg block is suspended from a spring with k = 400 N/m. A 56.0 g bullet is fired straight up into the block from directly below with a speed of 162 m/s and becomes embedded in the block. (a) F
Suppose the rod is flipped around so the denser part is now at the origin. Calculate the new moment of intertia and compare to the value from part b and to a uniform rod.
The net electric flux through a sphere of radius R = 2 m is 15,000 Nm2/C. What is the net charge inside the sphere?
A circular coil has 200 turns, a radius of 3.0mm, and a current of 2.0A. If a proton is placed at the center of the coil and moves with a speed of 3.0 x 10^5 m/s towards the coil, what are the force
A small fly of mass 0.30 g is caught in a spider's web. The web vibrates predominately with a frequency of 3.4 Hz. What is the value of the effective spring stiffness constant "k" for the web, in N/m?