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kakasveta [241]

2 years ago

6

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1 answer:

astra-53 [7]2 years ago

3 0

Answer:

D. provide the most compelling evidence of cause-and-effect relationships.

Explanation:

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A small first-aid kit is dropped by a rock climber who is descending steadily at 1.9 m/s. After 2.4 s, what is the velocity of t

Genrish500 [490]

Answer:

$v=-21.65 m/s$

Explanation:

From the exercise we have:

$v_{o}=1.9m/s\\ g=9.81 m/s^{2}\\ t=2.4s$

To find the velocity after 2.4s we need to use the following formula:

$v=v_{o}+gt$

$v=1.9m/s-(9.81m/s^{2})(2.4s)=-21.65m/s$

The negative sign means that the kit is going down.

6 0

2 years ago

Read 2 more answers

A resistor, an inductor, and ideal battery, and a switch are connected in series. Just after the switch is closed, which of the

Marianna [84]

Answer:

b) the current and the voltage across the resistor

Explanation:

As soon as we close the switch then the current in the circuit will be zero because the inductor connected in series will not allow to change the current through it due to its inertial property

Since initial current through the inductor is zero so after connecting the key the current will still remains zero and then it will start increasing

The equation for current is given as

$i = i_o(1 - e^{-Rt/L})$

so as soon as the key is closed the current in the circuit is zero and hence the voltage across the resistor is also zero as we know

$V_r = i R = 0$

so correct answer will be

b) the current and the voltage across the resistor

5 0

3 years ago

Show that f(v)dv = 1 ,where f(v) is the maxwell boltzmann distribution equation

sveta [45]

Answer:

rearrange the equation

Explanation:

4 0

2 years ago

No links plz... 1. Define the following terms as they relate to radioactive decay

garik1379 [7]

Explanation:

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation wikipedia

half life is the time it takes something radioactive be gone halfway

Radiometric dating is the method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.

radioactivity affects Earth’s interior by keeping it liquid and hot

The outer core is molten and liquid iron and nickel, while the inner core is solid and much more dense than either iron or nickel at the surface

7 0

3 years ago

. If 540.0 mL of nitrogen at 0.00 °C is heated to a temperature of 100.0 °C what will be the new volume of the gas?

Afina-wow [57]

Explanation:

jsjsjsshshsgeyyeyey373772ii2owpqlqlammzbxdh

8 0

3 years ago

Read 2 more answers