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The captain of an infamous ship spots an iceberg ahead. Currently the ship is travelling east at a speed of 37.0 knots. The iceberg is 3 km away at an angle of 15° south of east and appears to be travelling north at a speed of 9.5 knots. 1 knot = 1.852 km/h
A) How many seconds will it take before the iceberg is directly ahead of the ship?
B) How many seconds will it take before the ship is directly in the iceberg's path?
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 14 m/s. How much time elapses from start to stop
The locomotive is moving at 25 km/h. The engineer of the high speed train immediately applies the brakes. What must be the magnitude of the resulting constant deceleration if a collision is to be just avoided.
A power plant that uses the temperature gradient of the ocean has been proposed. The system is to operate between 21°C (surface temperature) and 6°C (water temperature at a depth of about 1 km).
An ice cube is dropped in a glass of oil (density= 900 kg/m^3). What fraction of the ice floats above the oil
display a pendulum bob is suspended from a pivot. show that if I draw the pendulum back by an angle θ, the center of the bob is elevated by the distance.
A 250 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 3.5 N/cm, What is the speed of the block just before it hits the spring
When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.90 m. how far will the water travel horizontally
A proton has a kinetic energy of 8.5 MeV. If its momentum is measured with an uncertainty of 4.0%, what is the minimum uncertainty in its position
Monochromatic light falls on two very narrow slits 0.045 mm apart. Successive fringes on a screen 5.00 m away are 6.2 cm apart near the center of the pattern. estimate the frequency of the light
A hydrogen atom initially in the ground state absorbs a photon, determine the wavelength and frequency of the photon
The alpha line in the Balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56 ×10-7 meter. Compute the frequency of this light.
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