Determine what minimum volume must the slab have

Assignment Help Physics

Reference no: EM13547185

(A) You've been given the task of designing a "water couch"-that one could lie on, floating on a lake, for instance-in the form of a flat rectangular slab made of Styrofoam with a density of 85 kg/m3. What minimum volume must the slab have so that a 45 kg teenager can lie on top of the slab without getting wet?

(B) To explore the bottom of a 15-meter deep lake, your friend Jacques proposes to get a long garden hose, leave one end on land and the other in his mouth for breathing underwater, grab some hand weights and descend to the bottom of the lake to walk around down there. Explain why he will not be able to breathe that way, using a calculation or two (with approximations as needed) to support your argument.

Reference no: EM13547185

Questions Cloud

Designe cafe application using visual studio : Designed (Cafe) application using visual studio 2010. To Cafe application but it is about Booking Appointment for Hair Salon Business.

Explain what is the mass of sodium chloride produced : If 0.230g of sodium metal reacts with 0.355g of chlorine gas, what is the mass of sodium chloride produced

How long does it take for the motor to do the work done : Consider a motor that exerts a constant torque of 25.0 to a horizontal platform whose moment of inertia is 50.0. How long does it take for the motor to do the work done on the platform

Explain the specific heats of both pure and the solution : If you were to prepare a 1.00 solution of beginning with water at 21.5, what would the final temperature of the solution be (in ). Assume that the specific heats of both pure and the solution are the same, 4.18.

Determine what minimum volume must the slab have : You've been given the task of designing a "water couch"-that one could lie on, floating on a lake, What minimum volume must the slab have so that a 45 kg teenager can lie on top of the slab without getting wet

Explain the same mass density as matter in a nucleus : The earth has a radius of about 6.35 *10^6 m and a mass of 5.98 *10^24 kg. What would be the radius if the earth had the same mass density as matter in a nucleus

How much heat was needed to raise bullet temperature : A 0.0500-kg lead bullet of volume 5.00 × 10?6 m3 at 20.0 °C hits a block that is made of an ideal thermal insulator and comes to rest at its center. How much heat was needed to raise the bullet to its final temperature

What is the density of that piece of wood : A block of wood in the shape of a cube, 5.0 cm on a side, is floating in water with its top face parallel to the surface of the water. With a ruler, What is the density of that piece of wood

Find the angular width of the central diffraction maximum : A beam of laser light with a wavelenth of ? = 590.00 nm passes through a circular aperture of diameter a = 0.163 mm. What is the angular width of the central diffraction maximum

User Account

All Pages