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Holding a glass of water full to a depth of 7.6 cm you step into an elevator. The elevator moves upward by constant acceleration, increasing its speed from zero to 1.9 m/s in 2.7 s. Find the change in pressure exerted on the bottom of the glass through the time the elevator accelerates.
Suppose a uniform magnetic field B is applied perependicular to the plane of a semicircular loop of radius R and a current through the loop is I
A parallel plate capacitor of capacitance C0 has plateof area A with separation d between them. When it isconnected to a battery of voltage V0 it has chargeof magnitude Q0 on its plates.
Explain how many atoms strike the umbrella each second? Assume that the wind blows horizontally so that the gravity can be neglected.
A satellite of mass 200 kg is launched from a site on earth’s equator into an 200 km above the surface of earth (a) assuming circular orbit what is the orbital period of the satellite (b) what is the satellite speed in its orbit
Calculate the potential energy stored in the bow, if the arrow of mass 5.50 10-2 kg leaves the bow with a speed of 45.0 m/s. Assume that mechanical energy is conserved.
a 60.0-g object is attached to a horizontal spring with a force constant of 5.0 nm and released from rest with an
Calculate the angular momentum of a solid uniform sphere with a radius of 0.135 m and a mass of 14.0 kg if it is rotating at 5.90 m about an axis through its center
A certain brand of hot dog cooker works by applying a potential dissimilarity (120 V) to opposite ends of the hot dog and allowing it to cook by means of the joule heat produced. If it requires 60 kJ to cook every hotdog, what is the current needed t..
A 70 cm long, 0.8 mm diameter steel guitar string must be tightened to a tension of 2000 N by turning the tuning screws. By how much is the string stretched
Assume that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision.
A "red-hot" object is measured to have a frequency of 1.0x 10^14 Hertz. Determine what is the Celsius temperature of the object
q1. a 35.0- battery with negligible internal resistance a 90.0- resistor and a 1.75 inductor with negligible resistance
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