During a baseball game, a baseball is struck at ground level by a batter. The ball leaves the baseball bat with an initial speed v0 = 38 m/s at an angle θ = 34° above horizontal. Let the origin of the Cartesian coordinate system be the ball's position the instant it leaves the bat. Air resistance may be ignored throughout this problem.
Answers
Answer:
The horizontal distance is 136.6 m.
Explanation:
Given that,
Initial speed = 38 m/s
Angle = 34°
Suppose, Calculate the horizontal distance in meters the ball has traveled when it returns to ground level.
We need to calculate the horizontal distance
Using formula of range
Where, v= speed
g = acceleration due to gravity
Put the value into the formula
Hence, The horizontal distance is 136.6 m.
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ohms law..any one
Answers
Physics is as good a place as any, I guess.
And, before we roll up our sleeves, may I also note that assigning 48 fill-ins
(4 each for 12 problems) is exceeded in its excess only by expecting all of
the answers in return for 5 points. I'll give you the tips and hints you need
in order to solve these, and then I'll wish you well.
I see from the label in the upper corner that all of this refers to series circuits.
That's important to know, and I was about to ask. So we're going to assume
that for the whole bunch on the page, R1 and R2 are in series, connected
across VS, and there are no other components involved besides the two
resistors.
OK. Here are the tools you need:
On a resistor . . .
' K ' = 'thousand'
' Meg ' = 'million'
Total resistance . . . RT = R1 + R2 ohms
Voltage across each resistor:
VR1 = VS [ R1 / (R1+R2) ] volts
VR2 = VS [ R2 / (R1+R2) ] volts
Total current in the series circuit:
IT = VS / RT = VS / (R1+R2) Amps
And that's it. Easier than I thought. There are some other things that
it could have asked for, but it didn't.
Example:
Line #4:
VS = 5 volts
R1 = 470 ohms
R2 = 1,000 ohms
RT = R1 + R2 = 1,470 ohms
VR1 = VS ( R1/RT ) = 5 (470 / 1,470) = 1.598... volts
VR2 = VS ( R2/RT ) = 5 (1,000 / 1,470) = 3.401 volts
(Notice that VR1 + VR2 always = VS.)
IT = VS / RT = 5 / 1,470 = 0.0034 Amperes = 3.4 mA (milliamps)
The power supplied by the battery is (VS)²/RT = 0.017 watt ,
but it doesn't ask for that.
And that's it ! That's everything you need. Go get 'em, champ !
Answers
Answer:
Because Moon and Mars has no atmosphere.
Explanation:
Moon and Mars has no atmosphere, so there is no friction on the falling object due to the atmosphere. The speed of the falling object is more at Moon and Mars.
When a small object impact on the surface of moon or Mars with high speed, the size of crater is large than the earth as out earth has atmosphere.
Final answer:
The largest craters on the Moon and Mercury are larger than those on Earth due to the Moon's and Mercury's geological inactivity, absence of substantial atmosphere, and lower frequency of erosional and tectonic processes. These conditions preserve the craters and allow for the conjecture of an impact origin of these features, as well as provide valuable clues into the historical events of the solar system.
Explanation:
The reason why the largest craters on the Moon and Mercury are much larger than the largest craters on Earth is primarily due to their geological and atmospheric differences. Both the Moon and Mercury are geologically inactive and lack substantial atmospheres. This means that their surfaces are not subjected to the same level of erosional processes present on Earth, like wind and water erosion, or tectonic activities that could erase or alter the appearance of craters over time.
Another important aspect is related to the frequency and scale of impact events. Crater formation rates on the Moon or Mercury can be estimated from the number of craters currently observable or from known quantities of existing cosmic debris (comets and asteroids), which can serve as potential projectiles. Given the extended geological timescales, large crater-forming impacts are relatively rare, occurring at a greater timescale than human history.
Furthermore, the size and shape of these craters often indicate an impact origin, as first proposed by prominent geologist Grove K. Gilbert in the 1890s. High velocity impacts result in explosive events that generate craters much larger than the size of the impacting body itself. Therefore, the size of lunar and Mercurian craters, as well as their count, can provide valuable insights into the history of our solar system.
Learn more about Craters on Moon and Mercury here:
#SPJ12
Answers
If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then the traveler's total displacement would be 51.30 kilometers.
What is displacement?
An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard. Displacement describes this shift in location.
As given in the problem If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then we have to find the traveler's total displacement,
the total displacement in the east direction = 18.6 + 30.3Cos45°
the total displacement in the east direction = 40 km
the total displacement in the south direction = 10.7 + 30.3Cos45°
the total displacement in the south direction = 32.12 km
The net resultant displacement = √(40² + 32.12²)
The net resultant displacement = 51.30 kilometers
Thus, the traveler's total displacement comes out to be 51.30 kilometers.
Learn more about displacement here, refer to the link;
#SPJ2
South: 19.7+30.3/(sqrt2)
Total displacement: sqrt(east^2+south^2) is 57.3 km
B) chemical
C) structural
D) physical and chemical
Answers
I'm going to say physical change
explanation:
The substance as you said did not change therefore a chemical change could not have happened because they result in a new substance meaning one or multiple new substances could have been created from the chemical change. With a physical change the only thing that changes is the outward appearance.
example of physical change: water changing into ice. The frozen water is composed of the same elements as the liquid water.
Hopefully this helped and good luck.
Answers
Answer:
Capture Theory
Explanation:
According to capture theory, moon is passing space rock-asteroid which was captured into the orbit around the Earth due to gravity. Other planets have moons which are captured asteroid like Mars has two moons-Phobos and Deimos. Jupiter has many moons which are captured asteroids. Capture theory explains the difference in the composition of Earth and the moon.
Answers
Explanation:
The amount of matter contained inside a body is called its mass while the weight of a body is the gravitational force with which it is attracted towards the earth.
Weight, W = mg
m is the mass and g is acceleration due to gravity
The mass of the object on the moon remains the same but the weight of the body is reduced to one sixth. This is because the moon's gravity is less than the earth's gravity.
Hence, this is the main difference in the weight of the object on the earth and on the moon.