The diagram shows a metal block submerged in water spring
balance
weight of
displaced
water = 4N
eureka
can
water
block
Diagram 10N
Diagram2 6N
Diagram3 6N
.1 mark
a. Using the information on find
i. The real weight of the metal block
memo
ii. The apparent weight of the metal block
1 mark
iii. The upthrust on the metal block
1 mark
b. Explain why the apparent weight of the metal block is less than its real weight
​

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j

Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm

Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?