The potential energy of any object depends on its mass as well as its height off the ground.
Potential energy = mass x gravity x height.
We don't have enough information to compare the potential energies of these two objects because we don't know their masses.
<span>One end of a uniform meter stick is placed against a vertical wall. The other end is held by a lightweight cord that makes an angle, theta, with the stick. The coefficient of static friction between the end of the meter stick and the wall is 0.390. A. what is the maximum value...</span>
Answer:
41.16 m/s
Explanation:
Final velocity is equal to gravity multiplied by time; v = gt
Gravity is always 9.8 m/s/s (m/s^2), so
v = 9.8 * 4.2
v = 41.16
Answer:
The radius = 170.21 m
Explanation:
The given data are : -
The centripetal acceleration of a car = 9.40 m/s².
Speed of a car = 40.0 m/s .
We have to calculate the radius ( r ) of of curve.
The centripetal acceleration ( a ) is given by
a = 
r = 
= 
= 
= 170.21 m
Answer:
B. 47-54 miles/hour
Explanation:
Gale is a strong wind which is depicted by red warning flag. According to U.S. National Weather Service gale is a sustained surface wind. It is also used to refer winds from tropical coastal areas.
On the basis of force of wind gale is divided in four groups:
- Near gale - 32-38 mph
- Gale - 39-46 mph
- Strong gale - 47-54 mph
- Storm - 55-63 mph
