Answer:
Explanation:
Force has the unit N for Newton.
A Newton is 
, mass*kilograms/seconds^2.
Dimensions in Physics include things such as Mass, Length, and Time.
kg is Mass
m is Length
s^2 is Time
So, since a Newton has all of these, it has T, L, and M.<em> </em><em>Force has dimensions </em>
<em />
However, you must now consider gravitational force.
Law of Gravitation states:
Convert that into a fraction with dimensions:
Remember force is
Use the dimensions of force to find gravitational force, or G:
5.3 kiloliters is how much water a fountain can hold.
the mass of 1cm3 of mercury is 13.6g because
the formula of density is mass/volume and when paste the number in it. you get the answer
Answer:
23.4 m/s
Explanation:
f = actual frequency of the wave = 6.2 x 10⁹ Hz
= frequency observed as the ball approach the radar
= frequency observed as the ball recede away from the radar
V = speed of light
= speed of ball
B = beat frequency = 969 Hz
frequency observed as the ball approach the radar is given as
eq-1
frequency observed as the ball recede the radar is given as
eq-2
Beat frequency is given as
Using eq-2 and eq-1
inserting the values
= 23.4 m/s
Answer:
The horizontal speed with which the slingshot hits the balloon is approximately 57.358 m/s
Explanation:
The given parameters of the slingshot motion are;
The initial velocity of the slingshot, v = 100 m/s
The angle (to the horizontal) at which the slingshot is fired makes, θ = 55°
The path of the slingshot which hits the stationary balloon at the top of its flight = Parabolic trajectory
The horizontal component of the velocity = vₓ = v·cos(θ) = Constant
vₓ = 100 × cos(55°) ≈ 57.358
The horizontal speed with which the slingshot hits the balloon = vₓ ≈ 57.358 m/s.
