Loose 10 pounds im pretty sure
Answer:
289.1kg
Explanation:
because W=M*G, and M=W/G, so 2891N/10m/s²=289.1kg
<h2>A)</h2>
The forces acting on you are:
- The gravitational pull of the Earth (an others Celestial objects)
- The Normal Force that balance the gravitational pull and points upward.
That is. There is not need for any other force, cause the car its going at constant speed, so the acceleration its zero, as the net force its mass multiplied by acceleration, the net force is zero.
<h3>B)</h3>
The forces acting on you are:
- The gravitational pull of the Earth (an others Celestial objects)
- The Normal Force that balance the gravitational pull and points upward.
That is. Again. The car its slowing down. But, it cant apply a force in you against the direction of movement to slow you down.
<h3>C)</h3>
As you can't be slowed down, you will go forward at the same speed you had when the car went steady, and will crash against whatever its in front of you.
D)
The friction force, will pull you against the direction of movement, and slow you down will the car slows down.
Answer:
Explanation:
By the definition of centripetal acceleration ,
where ,
a = centripetal acceleration
V= velocity
r = radius of circle
Answer:
The ratio between W2 and W1 is
p=1.5
Explanation:
The W2/W1 ratio equals the efficiency ratio, since the heat input is constant.
Initially, the Carnot efficiency is
1 - (Tc/Th)
1 - 400/800 = 0.50
After lowering Tc, the efficiency becomes
1 - (Tc/Th)
1 - 200/800 = 0.75
So to determine the ratio between W2 and W1
W2/W1 = 0.75/0.50 = 1.5
