3 years ago

Two boxes are connected by a string. The first box has a mass of 4.2 kg and the

Physics

1 answer:

denis23 [38]3 years ago

8 0

Answer:

........

Explanation:

You might be interested in

Which of the following is most closely related to an activated complex?

Anon25 [30]

Among the choices above, the one that is most closely related to an activated complex is the transition state. The answer is letter D. This formation forms quickly and does not stay in a way compound is. It usually forms during the enzyme – substrate reaction.

5 0

4 years ago

A camera lens focuses on an

natka813 [3]

0.556cm height of image

5 0

2 years ago

What is the resistance of a bulb of 40w connected in a line of 70v

olga55 [171]

Answer:

122.5 ohm

Explanation:

Given :

P=40 w

V= 70 V

R=?

Resistance can be calculated as :

$P=\frac{V^{2} }{R} \\40=\frac{(70)^{2} }{R}\\40=\frac{4900}{R} \\R=\frac{4900}{40} \\R=122.5 ohm$

Therefore, resistance of the bulb will be 122.5 ohm

4 0

3 years ago

Please help on this one?

vova2212 [387]

Answer: The system internal energy is 40 Joules.

Explanation: As suggested, the formula $\Delta U = Q-W=(70-30)J = 40J$ should be used. 70 Joules worth of thermal energy are added, and the system does 30 Joules worth of work (energy expenditure).

7 0

3 years ago

Read 2 more answers

Which description tells the length of time it takes for a planet to revolve around the sun?

s344n2d4d5 [400]

A) the length of its year

5 0

4 years ago