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castortr0y [4]
3 years ago
7

A ball is thrown with a speed of 20 m/s at an angle of 40°. Which of the

Physics
1 answer:
Liono4ka [1.6K]3 years ago
8 0

Answer:

B. The vertical component of velocity is zero.

Explanation:

At the top of the flight, the gravitational acceleration g has stoped the vertical upwards motion of the ball momentarily before the vertical velocity starts to increase in the opposite direction.

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Since alcohol evaporate faster than water if I leave a beer out will it become alcohol free before completely evaporating?
Bas_tet [7]
I dont think so since the alcohol is still mixed into the water so I think they will evaporate at the same time.
3 0
3 years ago
A free body diagram can be used to help work out the net force acting on an object. True or, false?
Whitepunk [10]

Answer:

free body diagram can be used to help work out the net force acting on an object. True or, false?

Columbian exchange. Tell a story in chronological order of the changes that the community undergoes as it and the communities around it make contact with Europeans over a span of roughly 50 to 100 years.

This section is worth 20 points. See the scoring rubric for more details on how you

will be graded

Use the evidence you gathered to tell the story of a hypothetical indigenous

community in the Americas and its experience involving the Columbian Exchange.

Come up with a community whose circumstances are typical of many in Central

America, the West Indies, or another part of the Americas that had direct contact with

Europeans. Tell the story in chronological order, but feel free to skip whole years or

decades so that you can cover each of the important topics related to the activity: the

availability of goods, the effects of disease, and the impact of European culture

(language and religion, for example), at the very least.

Think of your story as more of a summary than a work of fiction; you must cover a

large span of time in few words. Base the details of the story on factual evidence and

cite your sources, but keep in mind that the text should be written as a story, not as

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6 0
3 years ago
Convert 1 second into solar day.
otez555 [7]

DIVIDE 1 BY 86400 TO CONVERT 1 SECOND INTO SOLAR DAY.

6 0
3 years ago
1. What is the temperature in Kelvin and Fahrenheit of silver at 51.4oC?1. What is the temperature in Kelvin and Fahrenheit of s
horsena [70]

Answer:

Temperature in Fahrenheit will be 124.52°F and in kelvin 324.4 K

Explanation:

We have given temperature in of silver in degree Celsius as 51.4^{\circ}C

We have to convert this temperature in Fahrenheit and kelvin

For Fahrenheit

Temperature in Fahrenheit   = \frac{9}{5}\times 51.4+32=124.52^{\circ}F

For kelvin

In kelvin = 51.4+273 = 324.4 K

So temperature in Fahrenheit will be 124.52°F and in kelvin 324.4 K

5 0
3 years ago
A flat loop of wire consisting of a single turn of cross-sectional area 7.10 cm2 is perpendicular to a magnetic field that incre
MAVERICK [17]
<span>From Ohm's law. V = IR. Where R = 2 Ohms. To calculate the induced current I; We need to calculate the electromotive force or voltage, V. From Faraday's law induced EMF = (The rate of change of magnetic flux density x Area)/ (changein time). Or EMF = BA/t. Where B = Bf - Bi. And BA = Bf* A - Bi* A. Bf = 2.00 and Bi = 0.500 and t = 0.93s and the area, A = 7.1 cm^2 is 0.000071 m^2. 2 So Emf = 2.00 (0.000071) - 0.500(0.000071) /(0.93) = 1.0654 * 10^(-4)/ 0.93 = 1.1415 * 10^(-4). Substituting into ohms law, we have, I = (1.1415 * 10^(-4)) / 2 = 0.57075 * 10^(-4)</span>
3 0
3 years ago
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