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A 0.16kg baseball is hit into the air. When its 6.68 meters above the ground traveling 17.2 m/s at a 55 degree angle. What is its mechanical energy?
A rifle with a barrel length of 64cm fires a 12gbullet with a horizontal speed of 400m/s. What resistive force (assumed to be constant) does the wood exert on the bullet
A wheel has a radius of 3.6m. How far (path length) does a point on the circumference travel if the wheel is rotated by angles of 30°, 30 rad, and 30 rev, respectively.
A converging lens with a focal length of 20 cm and a diverging lens with a focal length of -70 cm are 110 cm apart. Calculate the distance between image and diverging lens
A grinding wheel is a uniform cylinder with a radius of 8.5 cm and a mass of .580 kg. Calculate its moment of inertia about its center
A steel cable has a cross-sectional area 3.44 × 10-3 m2 and is kept under a tension of 3.33 × 104 N. At what speed does a transverse wave move along the cable
A 60-kg basketball is dropped out of a window that is 6.1m above the ground. The ball is caught by a person whose h&s are 1.5m above the ground. Find gravitational potential energy of the ball.
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
The length of a simple pendulum is 0.73m, the pendulum bob has a mass of 307 grams, and it is released at an angle of 12° to the vertical. With what frequency does it vibrate? Assume SHM. What is the pendulum bob's speed while it passes through th..
A hiker starts at his camp and moves the following distances while exploring his surroundings: 80.0 m north, 2.20 102 m east, Find his resultant displacement from camp
A spring of constant 290 N/m is used to launch a 1.2 kg block along a horizontal surface whose coefficient of sliding friction is 0.27
At t = 0 a grinding wheel has an angular velocity of 25.0 rad/s. It has a constant angular acceleration of 21.0 rad/s2 until a circuit breaker trips at t = 1.81 s. What was its acceleration as it slowed down
The solar energy coming to the earth by radiation is 1,340 W/m If the sun has a radius of 7.000*10^8m, what is the temperature of the sun
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