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A car travels due east with a speed of 36.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle
A ship sets out to sail to a point 234 km due north. An unexpected storm blows the ship to a point 74 km due east of its starting point. How far must it now sail to reach its original destination?
A roller coaster car moves 248 ft horizontally and then rises 121 ft at an angle of 30° above the horizontal. It then travels 121 ft at an angle of 40° downward. What is its displacement fr
What is the terminal speed for an 78.0kg skier going down a 43.0 degree snow-covered slope on wooden skis (mu_k= 0.060)? Assume that the skier is 1.80m tall and 0.500m wide.
A drunken sailor stumbles 555 meters north, 505 meters northeast, then 455 meters northwest. What is the total displacement and the angle of the displacement?
You're in an airplane that flies horizontally with speed 900 (250 ) when an engine falls off. Neglecting air resistance, assume it takes 33 for the engine to hit the ground. Find the height of airp
A car is driven east for a distance of 14 km, then north for 67 km, then in a direction 30 degrees east of north for 25 km. Determine the magnitude of the displacement (in kilometers) of the car fr
On a level road with its brakes on, a car traveling at 82 km/hr stops within 88 m when the brakes lock and the car slides. a) What is the magnitude of the acceleration of the car? b) What is the co
1. Directions of the electric field are indicated on field lines. Why don't you have a direction indicated on the equipotential line?
A crate of mass 59 kg is attached to one end of a string, and the other end of the string runs over a pulley and is held by a person as in the figure below. If the person pulls with a force of 77 N
What must the charge (sign and magnitude) of a particle of mass 1.48g be for it to remain stationary when placed in a downward-directed electric field of magnitude 690N/C ?
A 0.14- ball is placed in a shallow wedge with an opening angle of 160 , as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assu
A small object with a mass of 420 mg carries a charge of 40.0 nC and is suspended by a thread between the vertical plates of a parallel-plate capacitor. The plates are separated by 4.00 cm.
The cylindrical imaging drum of a photocopier is to have an electric field just outside its surface of 2.00 105 N/C. If the drum has a surface area of 0.0610 m2 (the area of a 8 1/2 11 in. sheet of p
Find the coefficient of sliding friction between the block and ramp 2. Use three significant figures when entering your answer.
Put an electron (m = 9.1 × 10-28 g) in a one-dimensional box of length 2 × 10-8 cm. This is approximately the size of an atom. Compute the lowest possible energy, E1. This is the zero-poin
Why is the harmonic oscillator model not a perfect model for the behavior of a chemical bond?
What is the force exerted on the planet by the star? (It will probably be helpful to draw a diagram, including the relevant vectors.)
Determine the magnitude E_net of the net electric field at point P. Use K for the electrostatic constant. Express your answer in terms of q, d, and K.
What is the acceleration due to gravity g′ on the space shuttle in orbit - 200 km above the surface of the earth? The gravitational constant is 6.67 × 10^ -11 N · m2/kg2, the radi
Imagine drawing two equipotentials in the plane of the figure, one passing through point A and and one passing through point B. If the electric field is 250 N/C, how much does the potential change
The discovery of a star orbiting the center of our galaxy with a 15-year period has led to the finding that the mass of the giant black hole at the center of our galaxy is about 3 million times that
An insulated rigid tank initially contains 1.8 Ibm of helium at 82 F and 45 psia. A paddle wheel with a power rating of 0.025 hp is operating within the tank for 45 minutes.
How far are you from the intersection when you begin to apply the brakes? What acceleration will bring you to rest right at the intersection? How long does it take you to stop?
Find the frequency, f, the speed at the equilibrium position, vmax, the spring constant, k, the potential energy at an endpoint, Umax, the potential energy when the particle is located 62.3% of the