Answer:
The forces could be gravity, friction between the car and the ground, the force Katie is applying and the normal reaction.
B)
Doppler effect is about the apparent change in frequency. The change in pitch heard as an ambulance approaches you is an example of this
Answer:
D.
Explanation:
acceleration in the z component = velocity in z component / time. The question states velocity in z component is zero. Therefore, acceleration in z component = 0/time = 0.
Now the question does not specify whether the other velocity vectors (x or y) is zero or not. So its D.
Answer:The line plot shows the number of cans a class of students at Parkway School collected for a canned food drive.
Part A: How many students collected cans of food?
Part B: What is the median number of cans of food collected?
Explanation: