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1. Some species of whales can dive to depths of 800m. What is the total pressure they experience at this depth?
(The density of sea water = 1020 kg/m, and 1 ATM =10$ N/m)
A 15.0-kg object is pulled along a horizontal surface at a constant speed by a 25 N force acting at 30°
above the horizontal. How much work is done by this force as the object moves 10.0 m?
A force of F = 3i + 0.5j – 5k), N is applied to a particle located at r = 2i +4k, m.
Determine a) The torque vector; b) The angle between the vectors F and r
3.
4. A ball of mass Mi = 0.250 kg and velocity Voi = +5.00 m/s collides head-on with a ball of mass M2 = 0.800
kg initially at rest. No external forces act on the balls. If the collision is perfectly inelastic, find the velocity of
mi after collision?
Voi
M1
M2
2.
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Transcribed Image Text:1. Some species of whales can dive to depths of 800m. What is the total pressure they experience at this depth? (The density of sea water = 1020 kg/m, and 1 ATM =10$ N/m) A 15.0-kg object is pulled along a horizontal surface at a constant speed by a 25 N force acting at 30° above the horizontal. How much work is done by this force as the object moves 10.0 m? A force of F = 3i + 0.5j – 5k), N is applied to a particle located at r = 2i +4k, m. Determine a) The torque vector; b) The angle between the vectors F and r 3. 4. A ball of mass Mi = 0.250 kg and velocity Voi = +5.00 m/s collides head-on with a ball of mass M2 = 0.800 kg initially at rest. No external forces act on the balls. If the collision is perfectly inelastic, find the velocity of mi after collision? Voi M1 M2 2.
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