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At t=0, a 734 g mass at rest on the end of a horizontal spring (k= 113N/m) is struck by a hammer, which gives it an initial speed of 2.64 m/s. The period is 0.506 s and the the frequency of motion is 1.97 Hz. Determine the amplitude, maximum acceleration and total energy.
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15 m/s due north relative to water.
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 21 m/s at an angle of 31 degrees above the horizontal
Jack and Jill ran up the hill at 3.5m/s . The horizontal component of Jill's velocity vector was 2.5m/s . What was the angle of the hill? What was the vertical component of Jill's velocity?
What is the efficiency of a cyclical heat engine in which 65.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine
A tennis ball rolls off the edge of a tabletop of height 0.850m above the floor and strikes the floor at a point a horizontal distance 1.80 m from the edge of the table. You can ignore air resistance. Find out the time of flight.
You're driving down the highway late one night at 18 m/s when a deer steps onto the road 45m in front of you. What is the maximum speed you could have
A cylindrical tube is closed at both ends by glass plates 10.0mm thick. if the inside length of the tube is 7.5 cm, what is the total optic path length between the outer surfaces
A 6 m long 50 kg ladder leaning on a frictionless wall can successfully be scaled by a 120 kg man. What is the minimum angle between the ladder and the floor
When the sum of all forces acting on a system is zero, the system is said to exist in a state of equillibrium. What is the mass corresponding to this force
Two capacitors, one that has a capacitance of 3.90 µF and one that has a capacitance of 12.3 µF, are connected in parallel. Find the potential difference across each capacitor after they are reconnected
The position of an object connected to a spring varies with time according to the expression x = (4.4 cm) sin(6.9?t). (a) Find the period of this motion.
A 10.0 kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s. What is the speed of the crate when it arrives at the lower surface
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