What planet that weigh the most?

What are the signs of the angular velocity ω and angular acceleration α of the pulley in case (a) ? by convention, clockwise rotations are negative and counterclockwise rotations are positive?

Two particles collide, one of which was initially moving and the other initially at rest. Is it possible for both particles to be at rest after the collision?

A machine that provides both constant speed and maximum resistance throughout the full range of motion provides what type of muscular contraction?

For 1983 through 1989, the per capita consumption of chicken in the U. S. increased at a rate that was approximately linear. In 1983, the per capita consumption was 37.6 pounds, and in 1989 it was 45 pounds.

Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1150 kg and was approaching at 5.00 m/s due south. The second car has a mass of 750 kg and was approaching at 25.0 m/s due west.

A diffraction grating is illuminated simultaneously with red light of wavelength 670 nm and light of an unknown wavelength. The fifth-order maximum of the unknown wavelength exactly overlaps the third-order maximum of the red light.

Four soccer players are running down the field at the same speed. Player 1 weighs 145 lbs and is running toward the north goal, player 2 weighs 175 lbs and is running toward the south goal, player 3 weighs 155 lbs and is running toward the south

Pure water has a hydrogen ion concentration of 1 x 10 (-7) M and a ph of 7. A student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10 (-3).

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A train travels 53 kilometers in 4 hours, and then 90 kilometers in 3 hours. What is the average speed