2. 47 mph
3. 1 mph
4. 193.3 mph
Answer:
3. Usinθ
Explanation:
The vertical component of velocity of any object reaching maximum height is 0 and the horizontal component of velocity of any object in flight remains constant.
Therefore the horizontal component of velocity is Ucosθ for both objects at any given time.
At maximum height A is having 0 vertical velocity but B which just starting its flight is having Usinθ as its vetical component of velocity.
Velocity of B relative to A = Velocity of B - Velocity of A
As velocity can be resolved to components,( to simplify the sum )
Horizontal component of velocity of B relative to A = Horizontal component of velocity of B - Horizontal component of velocity of A
which is 3. Usinθ
Answer: The helium inside the tank is a lot more compressed than the helium in the balloon.
Explanation:
Answer: Foam is a good insulator for two reasons. First, it is filled with gas bubbles; gases conduct heat less effectively than either liquids or solids, and trapping the gas in small bubbles prevents the gas from effectively transferring heat via convection.
Explanation:
Hope this helps <3
The change in momentum of this baseball is equal to 0.5 Ns.
Given the following data:
To calculate the change in momentum of this baseball:
Momentum is the product of the mass possessed by an object such as a baseball and its velocity.
In Physics, the change in momentum of an object is always equal to the impulse experienced by the object due to the force acting on an object.
Mathematically, change in momentum is given by this formula:
Substituting the given parameters into the formula, we have;
Change inmomentum = 0.5 Ns.
Read more on momentum here: brainly.com/question/13822610