A small car and a large truck are driving down a highway, which statement would support the premise that the truck has more momentum? A)
A large truck has a much larger mass.
B)
A car has a smaller engine than a truck.
C)
A small car accelerate faster than a truck.
D)
A large truck can travel at close to the speed of the car
Answers
Answer:
A)
A large truck has a much larger mass.
Explanation:
Since we know that momentum is defined as the product of mass and velocity
so here we can say
so here more momentum will say that the product of mass and velocity will be more
so here as we compare the car and truck we can say that truck will have more momentum because the mass of the truck will always be greater than the mass of car
due to this huge difference in the mass of car and truck we can say that truck will always have more momentum than car.
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PLEASE HELP. Really important
ListenA projectile with mass m is fired with initial horizontal velocity vx from height h above level ground. Which change would have resulted in a greater time of flight for the projectile? [Neglect friction.]decreasing the mass to m/2decreasing the height to h/2increasing the initial horizontal velocity to 2vxincreasing the height to 2h
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Answers
gas
liquid
solid
Answers
Answer
Liquid
Explanation
There are four states of matter. Gas, liquids, plasma and solids.
Solids has a definite shape.
Gas and plasma has no definite volume.
Liquids are made up of very small vibrating particles called molecules that are held together by intermolecular forces. This makes the liquid to have a definite volume and no definite shape.
liquid
B. meniscusity.
C. viscosity.
D. capillarity.
Answers
the correct answer is
D. capillarity
With what velocity does it hit the ground?
The acceleration of gravity is 9.8 m/s
Answers
Final answer:
Using the principles of free fall motion, it can be determined that a tennis ball dropped from a height of 1.16 meters would hit the ground with a velocity of 4.8 m/s.
Explanation:
The objective here is to calculate the initial velocity of the tennis ball just before it hits the ground. This is a physics question related to free fall motion. We will use the equation of motion, v^2 = u^2 + 2as, where 'v' is the final velocity, 'u' is the initial velocity, 'a' is the acceleration, and 's' is the distance. In our case, the initial velocity (u) is 0 because the ball is dropped, not thrown downwards.
The acceleration (a) is the acceleration due to gravity, which is -9.8 m/s² (it's negative because it acts downwards). The distance (s) will be the drop height, which is -1.16 m (it's negative because we're considering downwards as negative direction). Therefore, the equation becomes (v)^2 = 0 + 2*(-9.8 m/s²)*(-1.16 m). Solving this we get v = √(2*9.8*1.16) m/s = 4.8 m/s. So, the tennis ball hits the ground with a velocity of 4.8 m/s.
Learn more about Free Fall Motion here:
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Answers
B- magnetic generator
C- magnetic field
D- magnetic charge