The distance is 6+4 which =10 miles. The displacement would be 7.21 miles. This is because you have to use the Pythagorean theorem so a^2 + b^2 = c^2. So 6^2 + 4^2 = 52. Then take the square root and you get 7.21.
Answer:
91 km
Explanation:
Draw a picture. The line of sight to the horizon forms a tangent line with the curvature of the Earth. The radius line to that point forms a right angle with the tangent line. So we can use Pythagorean theorem to find the distance.
c² = a² + b²
(6400 km + 0.650 km)² = (6400 km)² + d²
d ≈ 91 km
60ft/ 2.5 ft = 24ft
Hope that helps
Answer:
JC⁻¹
Explanation:
= mass of water added to calorimeter = 94.8 g
= initial temperature of the water added = 60.4 C
= specific heat of water = 4.184 Jg⁻¹C⁻¹
= mass of water available to calorimeter = 94.8 g
= initial temperature of the water in calorimeter = 22.3 C
= final equilibrium temperature = 35 C
= Heat gained by calorimeter
Using conservation of heat
Heat gained by calorimeter = Heat lost by water added - heat gained by water in calorimeter
J
= Change in temperature of calorimeter
Change in temperature of calorimeter is given as
C
Heat capacity of calorimeter is given as
JC⁻¹
Answer:
Explanation:
check attached image for figure, there is supposed to be a figure for this question containing a distance(height of collar at position A) but i will assume 0.2m or 200mm
Consider the energy equilibrium of the system
Here, F is the force acting on the collar, is the height of the collar at position A, m is the mass of the collar C, g is the acceleration due to gravity, is the velocity of the collar at position B, and is the velocity of the collar at A
Substitute 14.4N for F, 0.2m for , 1.5kg for m, for g and 0 for
Therefore, the velocity at which the collar strikes the end B is 4.412m/s