Helium atom, in other words, it consistis of a particle having four protons and two neutrons.
Answer:
Gas 2, Gas 3, Gas 4, Gas 5 is the order of decreasing strength of inter-molecular forces.
Explanation:
The strength increases as there is a decrease in the vanderwaals constant and vice versa.
Time before projectile hits wall
= 88.2 m / 29.4 m/s = 3 seconds
Vertical velocity of projectile after three seconds
= 3*9.8 = 29.4 m/s
Horizontal velocity of projectile after three seconds, assuming no air resistance
= 29.4 m/s (given)
Conclusion:
velocity of projectile when it hits the wall
= < 29.4, -29.4> m/s
= sqrt(29.4^2+29.4^2) m/s east-bound at 45 degrees below horizontal
= 41.58 m/s east-bound at 45 degrees below horizontal.
Answer:
The magnets need to be placed with red closest to blue.
Opposite poles attract.
The magnets will be attracted to each other with enough force to stick together.
Explanation:
Answer:
<h3>0.145m</h3>
Explanation:
Using the equation of motion formula y = ut + 1/2gt² where;
y is the horizontal displacement
u is the initial velocity
g is the acceleration due to gravity
t is the time
To calculate the horizontal displacement, we need to first get the time t. Using the equation:
v = u+gt
1.3² = 0+(9.8)t
1.69 = 9.8t
t = 1.69/9.8
t = 0.172s
Substituting the time into the equation above to get y
y = 0+1/2(9.8)(0.172)²
y = 4.905(0.029584)
y = 0.145m
Hence the cup's horizontal displacement during the fall is 0.145m
