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Suppose a slide similar to Der Stuka is 38.8 meters high, but is a straight slope, inclined at 45° with respect to the horizontal.
(a) Find the speed of a 56.4 kg thrill seeker at the bottom of the slide, assuming no friction.
____
(b) If the thrill seeker has a speed of 24.6 m/s at the bottom, find the change in mechanical energy due to friction.
____J
(c) Find the magnitude of the force of friction, assumed constant.
____N
A satellite in geosynchronous orbit orbits the earth in 24 hours. find the radial velocity and the angular velocity
If the bullet leaves the gun at a speed of 280 m/s, by how much will it miss the target? Illustrate at what angle should the gun be aimed so as to hit the target?
A slit 0.240mm wide is illuminated by parallel light rays with a wavelength 540nm. What is the distance on the screen from the center of the central maximum to the first minimum
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
Three point charges are located near a spherical Gaussian surface of radius R = 6 cm. What is the electric flux through this surface
A velocity selector has a magnetic field of magnitude 0.28 G perpendicular to an electric field of magnitude 0.43 kV/m. What energy must electrons have to pass through undeflected
An automobile tire is inflated with air originally at 20.0°C and normal atmospheric pressure. During the process, the air is compressed to 25.0% of its original volume and the temperature is increased to 35.0°C. (a) What is the tire pressure? (b) Aft..
A uranium and iron atom reside a distance R = 59.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. what is the magnitude of the force on the electron from the uranium ion
Describe, in general terms, how we may be able, through some simple experiments, determine the mass of the Earth
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
Show that the horizontal resultant of these two forces on the lamp is zero. Work out the weight of the lamp.
The average density of the planet Mercury is 5510 kg/m3. The acceleration of gravity on its surface is 3.73 m/s2. Calculate the average radius of Mercury
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