C a glass eye is my best guess because its all glass and a fake eye not actually working so thats my theroy.
Because the air inside the tires is kept at high pressure.
In fact, the force applied by the tires upwards to counter-balance the weight of the car (pushing downwards) is
where p is the pressure of the air inside the tires and A is the area of contact between the tire and the car. Therefore, a higher pressure means a larger force F, and eventually if the pressure p is higher enough the force F will be large enough to counterbalance the weight of the car.
Answer:
Explanation:
Let a car of m is on an incline bank of angle θ and it is rounding a curve with no friction. We need to find the centripetal force acting on it.
The attached free body diagram shows the car on the banked turn. It is clear that,
In vertical direction,
In horizontal direction,
So, the centripetal force is equal to . Hence, the correct option is (c).
Answer:
39.8 °C
Explanation:
m = mass of the ice = 100 g
L = latent heat of fusion of ice = 334 Jg⁻¹
M = mass of water = 200 g
= specific heat of water = 4.2 Jg⁻¹°C⁻¹
= initial temperature of water = ?
= final temperature of water = 0 °C
Using conservation of heat
Heat gained by ice = heat lost by water
m L = M ( - )
(100) (334) = (200) (4.2) ( - 0 )
= 39.8 °C