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A person who weighs 605 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 890000 Pa, what is the area of contact between each tire and the ground?
two identical blocks made of extremely hard metal collide with equal and opposite velocities. is such a collision
Light enters a substance from air at 30 degrees to the normal. It continues through the substance at 23 degrees to the normal. What would be the critical angle for this substance
Heather and Matthew walk eastward with the speed of 0.99 m/s east. If it takes them 37 minutes to walk to the store, how far have they walked? Reply in units of km.
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle, What is the mass of the wheel
An electron that has a velocity with x component 1.9 x106 m/s and y component 4.2 x 106m/s moves through a uniform magnetic field with xcomponent 0.025 T and y component -0.17 T.(a) Find the magnitude of the magnetic force on the electron. (b) Repeat..
A point charge causes an electric flux of -760 N·m2/C to pass through a spherical Gaussian surface of 15.0 cm radius centered on the charge. how much flux would pass through the surface
A simple camera telephoto lens consists of two individual lenses. The objective has a focal length f1 = + 37.0 cm. What is the magnification of the lens combination
A 0.091 kg solid cylinder with a radius of 1.74 cm, is placed at the top of a 30º inclined plane of height 66.1 cm. determine the speed of the cylinder at the bottom
Diagnostic ultrasound of frequency 3.03 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1340 m/s, what is the wavelength of this wave in tissue? (Take the sp..
What is the rotational kinetic energy of the Earth? Use the moment of inertia you calculated in Part A rather than the actual moment of inertia given in Part B.
Two 2.1 cm 2.1 cm square aluminum electrodes are spaced 0.57 mm apart. What is the magnitude of the charge on each electrode
When a 21.0-V emf device is placed across two resistors in series, a current of 12.0 A is flowing in each of the resistors. determine the magnitude of the larger of the two resistance
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