A) <span>Ivan does work when he lifts the basket
B) Work = Force * displacement
W = 20 * 2
W = 40 Joules
So, The Amount of work he does is 40 Joules
Hope this helps!</span>
Answer:
The final temperature of the system is 39⁰C
Explanation:
Applying principle of conservation of heat energy;
Heat loss by a hot body = heat gained by a cold body
where;
Mh is the mass of the hot fluid = 330 g = 0.33 kg
Mc is the mass of the cold fluid = 855-g = 0.855 kg
Tih is the initial temperature of the hot fluid = 55°C
Tic is the initial temperature of the cold fluid = 10°C
T is the final temperature of the mixture
Substitute the given values and solve for T
Therefore, the final temperature of the system is 39⁰C
Electromagnetic waves, AKA light, can travel through a vacuum.
The third statement is false.
Answer:
a) 12 N
b) 3 m/s²
Explanation:
m = Mass of the object
a = Acceleration of the object
Force
Now, F = 12 N
The resultant force acting on the object is 12 Newtons
The acceleration of the 4 kg object which is experiencing the same force is 3 m/s²