Answer:
a) 
b) 2.36 cm
Explanation:
a) The horizontal distance = x = 6 cm
1 cm = 0.01 m
6 cm = 6 cm * 0.01 m/cm = 0.6 m
Therefore the time taken (t) by the electron to travel from the emission point to the screen can be gotten from:
x = t * 
b) The vertical distance (y) traveled by the electon before it hits the screen is given by:
1 BTU mean 1 degree of F increased for 1 pound mass. Since the mass unit is in kg that means you need to convert it into pound. One metric ton means 1000kg and 1 kg mean 2.20462lb, then the water mass is: 1000kg x 2.20462lb/kg= 2204.62lb.
You are putting 110,000 btus of heat, so the calculation would be
Temperature increase= energy/mass = 110000btus/ 2204.62lb= 49.9 degree
Answer:
4693 J
Explanation:
The kinetic energy of the eagle is given by:
where
m is the mass of the eagle
v is the speed of the eagle
In this problem, m = 26 kg and v = 19 m/s. Substituting into the formula, we find
As we can see, the altitude of the eagle is not relevant for the calculation of the kinetic energy.
Answer:
Option b. is correct.
Explanation:
In the given question a parachutist is falling toward the ground .
Also, the downward force of gravity is exactly equal to the upward force of air resistance.
So, net force applied to the parachutist is equal to zero ( because both force acts in opposite direction ).
Now by first law of motion :
An object will be in rest or in constant speed unless and until no external force is applied on it .
So, in the question the velocity of the parachutist is not changing with time.
Therefore, option b. is correct.
Hence, this is the required solution.
Answer:
It all depends how heavy the hammer is
Explanation:
