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3 years ago

You could increase the mechanical efficiency of this screw by _____.

Physics

2 answers:

Natali5045456 [20]3 years ago

8 0

the answer is the second option now u can give her brainliest.

Sati [7]3 years ago

6 0

You could increase the mechanical efficiency of this screw by reducing friction along the screw threads

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Metallurgy is the study of _____.

vitfil [10]

Forming ionic bonds study

6 0

2 years ago

Read 2 more answers

A spacecraft and a staellite are at diametrically opposite position in the same circular orbit of altitude 500 km above the eart

Tanya [424]

Answer:

Hello the diagram related to your question is attached below

answer: a) 851 m/s

b) 8506.1 secs

Explanation:

calculate the periodic time of the satellite using the equation below

t = $\frac{2\pi }{R} \sqrt{\frac{(R+h)^{3} }{g} }$ -- ( 1 )

where ; R = 6370 km

h = 500 km

g = 9.81 m/s^2

input given values into equation 1

t = 5670.75 secs

next calculate the periodic time taken by the space craft

<u>a) determine the increase in speed </u>

V = v - $\sqrt{\frac{gR^2}{R + h} }$

where ; v = 8463 m/s , R = 6370 km, h = 500 km

V = 851 m/s

b) Determine the periodic time for the elliptic orbit

τ = $\frac{3t}{2}$

= $\frac{3*5670.76}{2}$ = 8506.1 secs

attached below is the remaining part of the detailed solution

5 0

2 years ago

What is the difference between the two graphs

kupik [55]

Answer:

one of the graph is postion-time graph while the other one is velocity-time graph

6 0

2 years ago

Karl measures the current through a resistor. What else will he need to measure in order to work out its resistance?

Shkiper50 [21]

Answer:

The voltage (V)

Explanation:

Ohms, in his law, has explained the relationship between current, resistance and voltage.

Ohm's law, which states that the voltage passing through a resistor is directly proportional to both the current and the resistance of the resistor, has the following equation:

V = IR

Where;

V = voltage (volts)

I = current (Amperes)

R = resistance (ohms)

According to this question, Karl measures the current, I, through a resistor. In order to calculate his resistance, R, he will need to measure the voltage, V.

7 0

2 years ago

The quantity that has units kg m2/sec2 is known as a

Svetach [21]

Answer:

Energy

Explanation:

The unit is $kg\ m^2/s^2$ .