Answer:
Explanation:
Given data
Mass m=1.2 g=0.0012 kg
diameter d=0.76 m
Friction Force F=3.6 N
To find
Velocity v
Solution
From the Centripetal force we know that
Where m is mass
v is velocity
r is radius
Substitute the given values to find velocity v
So
F = mass x acceleration
We have mass = 200kg
and acceleration = 3 m/s^2 so...
F = (200)(3)
F = 600 N
Answer:
24525 N
Explanation:
The <em>mass</em> of an object is a fundamental property of the object.
The <em>weight</em> of an object is the force of gravity on the object.
This is defined as follows
Weight (W)= mass(m) × weight of a unit mass(g)
( gravitational field intensity = g)
Assuming g= 9.81 ms⁻²,
W = mg
= 2500×9.81 = 24525 N
Answer:
Horizontal Component = 129.9 km/h
Vertical Component = 75 km/h
Explanation:
When a vector is resolved on the x-axis and the y-axis, the components so formed are called its rectangular components. The component along y-axis is called the vertical component and the component along x-axis is called horizontal component. These components can be given by following formulae:
Horizontal Component = v Cos θ
Vertical Component = v Sin θ
where,
v = velocity = 150 km/h
θ = angle = 30°
Therefore,
Horizontal Component = (150 km/h)(Cos 30°)
<u>Horizontal Component = 129.9 km/h</u>
Vertical Component = (150 km/h)(Sin 30°)
<u>Vertical Component = 75 km/h</u>
When the formation of carbon
dioxide is negative, it means that it releases heat to the surroundings. When it
releases heat to the surroundings, the reaction is exothermic.
