Answer:
It is larger than the Sun.
Explanation:
Brainliest pls
:3
Explanation:
Kinetic energy (J) = 2j
mass= 250g
velocity=?
1kg=1000g
mass= 250/1000
mass=0.25kg
Kinetic energy (J) = ½ x mass (kg) x [velocity]² (m/s)
2=1/2 × 0.25× [velocity]²
2=0.125× [velocity]²
[velocity]² = 2/0.125
[velocity]²=16
velocity= (16)^1/2
velocity= 4 m/s
To obtain the vertical component of the velocity, it is necessary to multiply the velocity at this time by sin 45 degrees. Since the velocity is not given, it must be solved first by dividing the distance by the time. To show this:
Velocity = distance / time
Velocity = 30 m / 4s
Velocity = 7.5 m/s
Vertical velocity = 7.5 sin 45
Vertical velocity = 5.3 m/s
Answer:
a )
Density = mass / volume
= 3500 / 3.5
= 1000 kg m⁻³
b) gauge pressure = h d g
h is height of water column
d is density
g is acceleration due to gravity
Put the values in the equation above
Gauge pressure = .15 x 1000 x 9.8
= 1470 Nm⁻²
Atmospheric pressure = 100000 Nm⁻²
Total pressure
= 101470 N m⁻²
c ) Volume of water displaced = volume of object
= 55 x 10⁻⁶ m³
Buoyant Force = weight of displaced water
= 55 x 10⁻⁶ x 1000 x 9.8
= .539 N.
