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A flea jumps by exerting a force of  1.20 X 10^-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of  0.500 X 10^-6 N on the flea. Find the direction and magnitude of the acceleration of the flea if its mass is 6.00 X 10^-7 kg. Do not neglect the gravitational force.

Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person’s voice was so loud in the astronaut’s space helmet that it was picked up by the astronaut’s microphone and transmitted back to Earth. It is reasonable to assume that the echo time equals the time necessary for the radio wave to travel from the Earth to the Moon and back (that is, neglecting any time delays in the electronic equipment). Calculate the distance from Earth to the Moon given that the echo time was 2.56 s and that radio waves travel at the speed of light .

Space debris left from old satellites and their launchers is becoming a hazard to other satellites. Calculate the speed of a satellite in an orbit 900 km above Earth’s surface. (Mass of Earth = 5,979 X 10^24 kg) Consider 900 km as the distance between the satellite and Earth.

Two teams of nine members each engage in a tug of war. Each of the first team’s members has an average mass of 68 kg and exerts an average force of 1350 N horizontally. Each of the second team’s members has an average mass of 73 kg and exerts an average force of 1365 N horizontally. What is the tension in the section of rope between the teams?

Homo sapiens have existed on earth for about 10% of the earth’s history.

A beam has dimensions of b = 14 in., h = 22 in., and d = 19.5 in. and is reinforced with 5 No. 5 bars. The concrete strength is 7,600 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

An experimental test of the hypothesis to explain the origin of the first organic compounds on Earth might include all of the following sequential steps, except for

You can insert two types of graphics into a Word document: a drawing object and a picture.

To add a page border to your newsletter, you click _____________ .

You can position an inline object anywhere on the page.