Hey all you can do is type the question on the internet and click on the one that has the same title as yours and the answers will be there im taking physics and i do that all the answers will be there
Answer:
The magnitude of each force is 1309 N and 105 N
Explanation:
The reaction at each lifter due weight and overturning effect (R₁, R₂) is given as:

g = 9.8 m/s²

Resolving the reactions to the vertical direction, we get:

The magnitude of each force is 1309 N and 105 N
A catalyst lessens the energy for a reaction so it can speed up so the catalyst is not used up in the end of the reaction so the answer would be D.
Answer:
1. acceleration value
2. 20 m
3a. when you throwing somethinb upward
3b. when a thing reach maximum height after throwing upward
4. (entire only) velocity = diaplacement/ time = 0/91 = 0
speed = distance/time = 200/91 = 2.2 m/s
5. (40-20)/4 = 5 m/s²
6. displacement using phytagoras get 50 m
velocity = displacement/time = 50/(6+4) = 5 m/s
7. 0, it turn back to the base
8. speed = distance/time = (240*2)/(4+6) = 48 km/h
9. s = (4+14)*3/2 =27 m
If you use the equation F=ma and re-arrange it to get m = F/a, you'll get the total mass. Then you have to subtract the mass of the cart from the total mass to get the mass of the rock.
Thus, m = 6N over 2m/s^2. The total mass will then be 3kg. Subtracting 1kg from the total mass will then yield you 2kg, which is the mass of the rock. Hope this helps.