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34kurt
3 years ago
15

A meter is larger than a

Physics
1 answer:
frutty [35]3 years ago
3 0
I think the best answer is Decimeter
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A footballer kicks a ball at angle teta to horizontal with some initial velocity a) what are the two types of independent motion
Nezavi [6.7K]

a) The motion along the vertical direction and the motion along the horizontal direction.

b) The object remains in the air for a time period of 2usin(θ)/g.

Any object that is thrown in the air when gravity is acting on it is called a projectile. The motion of this projectile is called projectile motion.

When the projectile is thrown in the air at some angle θ, then there are two independent motions taking place at the same time. First is the component of motion along the vertical direction along which gravity acts. Second is the component of motion along the horizontal direction along which the object moves with a constant velocity. No force acts along the horizontal direction. The horizontal motion does not affect the vertical motion and the converse is also true. So these are independent of each other.

The time of flight is the time during which a projectile remains in the air. This time of flight is calculated using the formula,

T=2usin(θ)/g

where T is the time of flight, u is the initial velocity and g is the acceleration due to gravity.

Hence, the object remains in the air for a time period of 2usin(θ)/g.

Learn more about projectile.

brainly.com/question/11049671

#SPJ4

8 0
2 years ago
Consider a ball of 0.22 kg, initially at rest, is dropped from an initial height of 1.80 m. It rebounds back after colliding wit
I am Lyosha [343]

Answer:

The impulse on the ball delivered by the floor is 2.52 kg-m/s.

Explanation:

Given that,

Mass of the ball, m = 0.22 kg

It  is dropped from an initial height of 1.80 m. It rebounds back after colliding with the floor to a final height of 1.50 m. Initial velocity and final velocity can be calculated using conservation of energy as :

u=\sqrt{2gh} \\\\u=\sqrt{2\times 10\times 1.8} \\\\u=6\ m/s

Final velocity,

v=\sqrt{2gh'} \\\\v=\sqrt{2\times 10\times 1.5} \\\\v=5.47\ m/s

As the ball rebounds, v = -5.47 m/s

We need to find the impulse on the ball delivered by the floor. We know that impulse is equal to the change in momentum as follows :

J=m(v-u)\\\\J=0.22\times ((-5.47)-6)\\\\J=-2.52\ kg-m/s

So, the impulse on the ball delivered by the floor is 2.52 kg-m/s.

7 0
3 years ago
In order for water to condense on an object, the temperature of the object must be ______ the dewpoint temperature.
enyata [817]

Answer:

at   ( or below)

Explanation:

at the dewpoint.......water will condense out of the air onto the surface

7 0
2 years ago
What mass of a material with density Ï is required to make a hollow spherical shell having inner radius r1 and outer radius r2?
inysia [295]
<span>Yes, there are! r1 and r2 are numbers. The volume of the hollow shell is 4 π 3 ( r 3 1 − r 3 2 ) 4π3(r13−r23). Now multiply by ρ to get the mass.</span>
3 0
3 years ago
Heat is most closely related to____ energy.
OLEGan [10]
Heat is most closely related to THERMAL energy.
4 0
3 years ago
Read 2 more answers
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