Answer:
I'm pretty sure it's air pressure.
Explanation:
I'm not really sure what specific answer they're looking for, but if it's an open-ended question, then let's think about it this way...
A light year, is the distance it takes for light to travel in a year. If an object is 50,000 light years away, then by the time the light travels to us, 50,000 years has passed. We are looking at a 50,000 year old image of that object. (ignoring gravity and spatial expansion fun stuffs)
I need help with my homework it’s due tomorrow and I feel like I failed can u help me bro
Answer:
Explanation:
given,
enthalpy of combustion of carbon = –394 kJ mol-1
enthalpy of combustion of hydrogen = –286 kJ mol-1
enthalpy of combustion of ethanoic acid = –876 kJ mol-1
combusion of ethanoic acid
entalpy of formation
now,
Answer:
D. increase the launch angle and increase the ball’s initial speed
Explanation:
for a body undergoing a projectile motion ,the time of flight will be the following
t=(2usin∅)/g
t=time of flight
u= the velocity a body undergoes during the motion
g=gravitational constant(9.81m/s^2)
∅=launch angle
mathematically, as the velocity and angle of inclination increases the time of flight also increases provided that g is constant .
D. increase the launch angle and increase the ball’s initial speed