Answer:
0.459 m.
Explanation:
To calculate the height, use 3rd equation of motion as
Here v is the final velocity, u is the initial velocity, g is the acceleration due to gravity and h is the height.
As ball moving up so acceleration due to gravity becomes negative i.e -g and at maximum height v = 0.
Therefore equation becomes,
Given u = 3 m/s and g = 9.8 m/s^2.
Substitute the given values, we get
h = 0.459 m
Thus, the height of hill is 0.459 m.
Low place to a high place I think
As we move from Radiowaves to UV waves in electromagnetic spectrum we know that the wavelength is maximum for radio waves while its frequency is minimum
PART (i)
So as we move from radiowaves to UV region
the Frequency will increase
Part (ii)
As we move from Radiowaves to UV region all the parts must have same speed in same medium
All parts will move with speed of light
so Speed will remain the same
Explanation:
the particles in liquids and gases move faster when they are heated than they do when they are cold. As a result, the particles take up more volume.
Answer:
1500kg
Explanation:
Assuming that the women push the car in the same direction, then the total force is:
Fnet = 425 N ⋅ 3
= 1275 N
To find the mass, we use Newton's second law of motion, which states that,
F = ma
where:
·F is the force applied in newtons
·m is the mass of the object in kilograms
·a is the acceleration of the object in meters per second squared.
So we get:
F
m= ⁻⁻⁻⁻⁻
a
1275N
= ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
0.85 m/s²
= 1500 kg