A26 foot ladder is lowered down a vertical wall at a rate of 3 feet per minute. the base of the ladder is sliding away from the wall. a. at what rate is the ladder sliding away from the wall when the base of the ladder is 10 feet from the wall? would you expect the same rate when the ladder is any distance from the wall? would you expect your answer to be positive when the base is any distance from the wall? is there a physical reason why the rate is positive? at what rate is the ladder moving away from the wall when the ladder hits the ground?

which three statements are true about all alloys?

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.