A plane, flying horizontally, releases a bomb, which explodes before it hits the ground. Neglecting air resistance, what is the center of mass of the bomb fragments just after exploding?

A plane, flying horizontally, releases a bomb, which explodes before it hits the ground. Neglecting air resistance, what is the center of mass of the bomb fragments just after exploding? I think they move along a parabolic path?

Energy is conventionally measured in calories as well as in joules...

Energy is conventionally measured in Calories as well as in joules. One Calorie in nutrition is one kilocalorie, defined as 1 kcal = 4186 J. Metabolizing one gram of fat can release 9.00 kcal. A student decides to try to lose weight by exercising. She plans to run up and down the stairs in a football stadium as fast as she can a ...continues

Physics Problems

Eclipses happen on Earth because of an amazing coincidence. Calculate, using the information (1 radian (rad) = 57.30 degree = 57degrees 18' 1degree=0.001745 rad 1 rev/min(rpm) = 0.1047rad/s) The angular diameters(inrad) of the sun and the moon as seen on Earth? An automobile engine slow ...continues

Physics Problems

How does the number of atoms in a 26.5 gram gold ring compare to the number in a silver ring of the same mass? Amoung the higest and lowest temperatures recorded are 136degrees F in the Libyan desert and -129Degrees F in the Antarctica. What are these in Celsius? To make a secrue fit, rivets that are larger than the rivit ...continues

Questions

Circular motion is often described as revolutions per second called: (a) period (b) frequency (c) amplitude (d) decibel The time required for one complete revolution of an object revolving in a circle is called: (a) period (b) frequency (c) time (d) amplitude Every particle in the universe attracts every ...continues

Rotational dynamics: Atwood's Machine (Pulley with mass)

A m1 = 16.0 kg object and a m2 = 12.5 kg object are suspended, joined by a cord that passes over a pulley with a radius of 10.0 cm and a mass of 3.00 kg (Fig. P10.46). The cord has a negligible mass and does not slip on the pulley. The pulley rotates on its axis without friction. The objects start from rest 3.00 m apart. Treatin ...continues

Energy

A thin stick of length L = 1.6 m is denser at one end than at the other: Its mass density is = (0.40 kg/m) - (0.03 kg/m2)x, where x measures the distance from the heavier end of the stick. The stick rotates with period T = 1 s about an axis perpendicular to the stick through the heavy end. Determine the rotational kinetic energ ...continues

Energy - Rigid rods of negligible mass...

Rigid rods of negligible mass lying along the y axis connect three particles (listed below). The system rotates about the x axis with an angular speed of 3.70 rad/s. Particle one has mass 4 kg, located a distance from origin of y=3.00 m Particle 2 has mass 2 kg, located a distance from origin of y= -2.00 m Particle 3 has ...continues

Conservation of Energy

A metal can containing condensed mushroom soup has mass 220 g, height 11.2 cm and diameter 6.38 cm. It is placed at rest on its side at the top of a 3.00 m long incline that is at 26.0° to the horizontal, and is then released to roll straight down. Assuming mechanical energy conservation, calculate the moment of inertia of the ...continues

Kinetic Energy

A thin stick of length L = 1.6 m is denser at one end than at the other: Its mass density is = (0.40 kg/m) - (0.03 kg/m^2)x, where x measures the distance from the heavier end of the stick. The stick rotates with period T = 1 s about an axis perpendicular to the stick through the heavy end. Determine the rotational kinetic ener ...continues