Answer:
(a) 693.12 torr
(b) 68.5 kilopascals
(c) 0.862 atmosphere
(d) 1.306 atmospheres
(e) 36.74 psi
Explanation:
(a) 0.912 atm = 0.912 atm × 760 torr/1 atm = 693.12 torr
(b) 0.685 bar = 0.685 bar × 100 kPa/1 bar = 68.5 kPa
(c) 655 mmHg = 655 mmHg × 1 atm/760 mmHg = 0.862 atm
(d) 1.323×10^5 Pa = 1.323×10^5 Pa × 1 atm/1.01325×10^5 Pa = 1.306 atm
(e) 2.50 atm = 2.50 atm × 14.696 psi/1 atm = 36.74 psi
Answer:
3 class lever .
Explanation:
Third class lever: In the third class lever, the effort is located in between fulcrum and load. Here, effort arm is shorter than the load arm. It cannot lift the heavy load but increases the speed of doing work. ............. can you me as brainlist pls
Answer:
Its acceleration is certainly negative.
Explanation:
- When an object moving in a straight line decelerates then its velocity certainly decreases.
- Its acceleration is certainly negative.
- As we know that acceleration is the rate of change in velocity and the object is decelerating i.e. its velocity is reducing with time.
![a=\frac{v_f-v_i}{t_f-t_i}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv_f-v_i%7D%7Bt_f-t_i%7D)
where:
are final and initial velocities of the object
are final and initial time of observation.
- Its SI unit is
![m.s^{{-2}](https://tex.z-dn.net/?f=m.s%5E%7B%7B-2%7D)
Answer:![\theta =21.03^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%20%3D21.03%5E%7B%5Ccirc%7D)
Explanation:
Given
velocity of boat with respect to river ![=7.8 km/hr](https://tex.z-dn.net/?f=%3D7.8%20km%2Fhr)
velocity of river is ![2.8 km/hr](https://tex.z-dn.net/?f=2.8%20km%2Fhr)
River is 3.5 km wide
Suppose boat leaves at an angle of
with vertical such that it reaches exactly opposite end of initial Point
Therefore
component will balance the river Flowso that sin component helps to cross the river
![7.8\sin \theta =2.8](https://tex.z-dn.net/?f=7.8%5Csin%20%5Ctheta%20%3D2.8)
![\sin \theta =0.3589](https://tex.z-dn.net/?f=%5Csin%20%5Ctheta%20%3D0.3589)
![\theta =sin^{-1}(0.3589)](https://tex.z-dn.net/?f=%5Ctheta%20%3Dsin%5E%7B-1%7D%280.3589%29)
![\theta =21.03^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%20%3D21.03%5E%7B%5Ccirc%7D)
A school bus is a compound machine is because it has more than 2 simple machines operating together