Albedo than land or higher
Answer:
<h3>formular kinetic energy=1/2 ×v</h3>
Answer:
10.71m/s
Explanation:
Mechanical energy is conserved since the ramp surface had no friction and the experiences no significant air resistance
Potential energy at the top of the ramp = mgh
where m is m, g = 9.8 m/s² ( acceleration due to gravity ) and h is height
since the length of the surface L of the ramp is 20.0 m and it is inclined at 17°
h, height = Lsinθ = 20 sin 17° = 5.85 m
kinetic energy of the block = mv²
potential energy = kinetic energy
m × 9.8 × 5.85 m = mv²
cancel m on both side
v = √(2 × 9.8 × 5.85) = 10.71m/s
Answer:
See below
Explanation:
The units in this question need to be all the same
Volume = L x W x H where 'H' is thickness of the foil
1.10 kg = 1100 g
The volume given = mass / density = 1100 g / 2.70 g/cm^3= 407.407 cm^3
304 mm = 30.4 cm .016 mm = .0016 cm
LWH = L * 30.4 cm * .0016 cm = 407.407 cm^3
<u>L = 8375.97 cm = 83.76 meters</u>
Answer:
The answer is number three forces acting on a sled are paired with equal and opposite forces