HELP ME take your time What does a 1kg pineapple weigh on Mars if 3397000m is its radius, and 6.42x10^23 kg is its mass?

2. An automobile rounds a curve of radius 75.0m on a flat road at a speed of 24m/s. What centripetal acceleration is necessary to keep the car on the curve?

3. The fastest human footspeed record is by Usain Bolt at 44.64 m/s. What centripetal force would be needed for him to maintain this speed around the curve of the track if the curve has a radius of 36.5 m and his mass is 94 kg?

Suppose that a comet that was seen in 563 a. d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical