No it would not be static friction.
Answer:
0.05 rad/s
Explanation:
7.8 km = 7800 m
For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g
But centripetal acceleration is product of angular velocity squared and radius of rotation r
Answer: Fill the cup with water
Add a handle to the cup
Lift the cup over the counter.
Explanation:
The options given are:
- Slide the cup away from the edge
- Fill the cup with water
- Turn the cup upside down
- Add a handle to the cup
- Move the cup to the floor
- Lift the cup over the counter
Potential energy refers to the energy that's being stored in a particular object. The formula for potential energy is given as:
PE = mgh
where,
m = mass
g = gravitational field.
h = height
The actions that'll increase the potential energy of the cup that's placed on the kitchen counter will be:
1. Fill the cup with water - This increases the weight of the cup.
2. Add a handle to the cup - The mass is increased as well.
3. Lift the cup over the counter - The height is increased.
It takes around 4 seconds for the camera ro fall 250 feet
use the quadratic formula where a=-16 b=0 and c=250
Acceleration = (change in speed) / (time for the change).
= (35 km/hr) / (30 sec)
= 7/6 km/hr-sec .
To get rid of that ugly unit, and change the solution to a
more familiar unit of acceleration, we need to convert it
to the usual ' m/s² '. This is not a major operation.
(7/6 km/hr-sec) x (1000 m/km) x (1 hr/3600 sec)
= (7/6 x 1,000 ÷ 3600) km-m-hr / km-hr-sec-sec
= 0.324 m/s² (rounded)
(This a rather gentle acceleration ... about 0.03 of a 'G' ...
so it would not mash you back into your seat in the car.)