on a small planet, an astronaut uses a vertical force of 175 newton to lift an 87.5 kg boulder at constant velocity to height of 0.350 meter above the planet's surface. What is the magnitude of the gravitation field strenght on the surface of the planet

How long does it take an airplane to fly 5000 miles if it maintains a speed of 240 miles per hour

According to the U.S. Census Bureau, in 2016, about 12.7% of the American population lived in poverty. Research demonstrates that people living in or near poverty have worse health outcomes and less access to health care than those who do not. Neighborhoods with many poor or low-income residents often have fewer resources that promote health. The lack of one resource, in particular, results in food insecurity and sometimes malnutrition. That is A) access to clean drinking water. B) preventive or needed medical care. C) grocery stores offering affordable and nutritious foods. D) recreational facilities that encourage physical activity. E

How was Bohr's atomic model different from those of previous scientists?

The diagram shows two bar magnets. They are cut along the dashed line, and then the two marked ends are placed near each other. Which statement best explains how the pieces will react?

A) The pieces will repel because the cut end of the top magnet is not a magnetic pole.

B) The pieces will attract because the cut end of the top magnet is not a magnetic pole.

C) The pieces will repel because the cut end of the top magnet is a south pole.

D) The pieces will attract because the cut end of the top magnet is a north pole.

A ferris wheel is 20 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4 minutes. The function h = f(t) gives your height in meters above the ground t minutes after the wheel begins to turn. What is the Amplitude?

Erica (39 kg ) and Danny (46 kg ) are bouncing on a trampoline. Just as Erica reaches the high point of her bounce, Danny is moving upward past her at 4.6 m/s . At that instant he grabs hold of her.