An astronaut has a mass of 70 kg on earth. What would her mass be in mars? What would her weight be on mars?

A duck floating on a lake oscillates up and down5.0 times during a 10.-second interval as aperiodic wave passes by. what is the frequencyof the duck's oscillations? (1) 0.10 hz (3) 2.0 hz (2) 0.50 hz (4) 50. hz

A box is pushed 40 m by amover. The amount of work done was 2,240 j. How much force was exerted on the box?

If you are swimming upstream (i. e., against the current), at what speed does your friend on the shore see you moving?

You are using a small telescope to view two closely spaced light bulbs located a mile away. Each light bulb is emitting blue light. At this distance, the light bulbs are still too close together for you to distinguish them as separate bulbs.

Sound waves in air are a series of a. periodic disturbances. b. periodic condensations and rarefactions. c. high - and low-pressure regions. d. all of the above E. none of the above

All group I metals react with H2O to a form a metal hydroxide and hydrogen gas. Which of these will react the fastest?

In transverse waves, the medium moves perpendicular to the direction of energy transport. true false

A horse is running at 12m/s accelerated to 38m/s in 10 seconds. What is the horses acceleration.

If you ride your bicycle down a straight road for 500 m then turn around and ride back your distance is your displacement a. Greater than b. Equal to c. Less than d. Cant determine

What are some of the physical and human made features that map symbols can represent