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xxMikexx [17]
3 years ago
14

Find the magnitude of the impulse delivered to a soccer ball when a player kicks it with a force of 1360 N. Assume that the play

er's foot is in contact with the ball for 5.85 times 10^{-3} s. (Show your work)
please
Physics
1 answer:
Alona [7]3 years ago
4 0

Answer:

7.59Ns

Explanation:

Given parameters:

Force  = 1360N

Time of contact  = 5.85 x 10⁻³s

Unknown:

Impulse  = ?

Solution:

The impulse of the ball is given as:

        Impulse  = Force x time

       Impulse  = 1360 x 5.85 x 10⁻³ = 7.59Ns

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What is the proportionality constant between an object and<br> its acceleration by a given force?
labwork [276]

Answer:

The net force acting on an object is proportional to the acceleration of that object with respect to an inertial frame of reference. The constant of proportionality in this, Newton's second law, is the classical mass of the object.

Explanation:

5 0
3 years ago
A spherical balloon has a radius of 6.95m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of ai
klio [65]

Answer:

602.27 kg

Explanation:

The computation of the largest mass of cargo the balloon can lift is shown below:-

Volume of helium inside the ballon= (4 ÷ 3) × π × r^3

= (4 ÷ 3) × 3.14 × 6.953

= 1406.19 m3

Mass the balloon can carry = volume × (density of air-density of helium)

= 1406.19 × (1.29-0.179)

= 1562.27 kg

Mass of cargo it can carry = Mass it can carry - Mass of structure

= 1562.27 - 960

= 602.27 kg

6 0
3 years ago
A series RLC circuit has a resistance of 57.61 W, a capacitance of 13.13 mF, and an inductance of 196.03 mH. The circuit is conn
Firdavs [7]

Answer:

voltage across = 1.6 V

Explanation:

given data

resistance R = 57.61 Ω

capacitance c = 13.13 mF = 13.13 ×10^{-3} F

inductance L = 196.03 mH = 0.19603 H

fixed rms output Vrms = 23.86 V

to find out

voltage across circuit

solution

we know resonant frequency that is

resonant frequency = 1 / ( 2π√(LC)

put the value

resonant frequency = 1 / ( 2π√(0.19603×13.13 ×10^{-3})

resonant frequency f = 3.1370 HZ

so current will be at this resonant is

current = Vrms / R

current =  23.86 / 57.61

current = 0.4141 A

and

so voltage across will be

voltage across = current / ( 2π f C )

voltage across = 0.4141 / ( 2π ( 3.1370) 13.13 ×10^{-3} )

voltage across = 1.6 V

4 0
3 years ago
"explain why the orbital radius and the speed of a satellite in circular orbit are not independent"
Oxana [17]
In order to achieve stable circular gravitational and centrifugal force must be in balance.
\frac{mv^2}{r}=G\frac{mM}{r^2} \\ v^2=G\frac{M}{r}\\ v=\sqrt{G\frac{M}{r}
This relationship tells closer the closser your orbit is to the surface of the planet the faster you have to go. Which makes sense because the closer you are to the planet the stronger gravitational force gets.

5 0
4 years ago
Which of the following is a positive statement? Question 4 options: A) A humidity level of 90 percent is too high. B) Summer eve
nika2105 [10]

Answer:

A) A humidity level of 90 percent is too high.

Explanation:

A humidity level of 90% is too high . It reflects real or possible situation .

Atmospheric temperature between 20 -  30 degree makes comfortable weather.  70 or 80 or 90 degree atmospheric temperature is impossible to achieve on the earth in normal case. The maximum temperature upto which

atmospheric temperature has  gone  is 55 degree .

So all the other statements appear to be false.

6 0
4 years ago
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