Answer:
Δx = 39.1 m
Explanation:
- Assuming that deceleration keeps constant during the braking process, we can use one of the kinematics equations, as follows:
where vf is the final velocity (0 in our case), v₀ is the initial velocity
(25 m/s), a is the acceleration (-8.0 m/s²), and Δx is the distance
traveled since the brakes are applied.
- Solving (1) for Δx, we have:
Answer:
The input current is 0.05 A.
Explanation:
Given that,
Output voltage = 7.50 V
Output current = 1.6 A
Input voltage = 240 v
We need to calculate the input current
The efficiency is 100% so.
Input power = output power
Hence, The input current is 0.05 A.
A car slamming on brakes is newtons law s of physics friction is what the energy a lite light buld is electrical energy traveling back and forth solar panels is to conserve and store energy
Answer:
(2) Its normal boiling point is above 120°C.
Explanation:
Normal boiling temperature is the temperature at which a substance boils in the atmospheric pressure.
atmosphere pressure is 760 torr.
Clearly, foe this substance increasing the pressure, its B.P. is increases, so at 760 torr, its normal boiling point should be greater than 120° C
(2) Its normal boiling point is above 120°C.