Answer:
the kinetic energy the bat can give to a ball is 2,025 J.
Explanation:
Given;
mass of the bat, m = 2kg
velocity of the bat, v = 45 m/s
The kinetic energy the bat can give to a ball is calculated as;
[tex]K.E = \frac{1}{2} mv^2\\\\K.E = \frac{1}{2} \times \ 2 \ \times \ 45^2\\\\K.E = 2,025 \ J[/tex]
Therefore, the kinetic energy the bat can give to a ball is 2,025 J.
EXERCISE 1
An object and an image are displayed on either side of a lens. Copy the figure to your sheet.
A) Calculate the focal length using the lenses formula.
B) Determine where the focal length should be, using the light construction beams.
C) Draw the light beam that illuminates the entire lens from point B. Draw how it continues after the lens.
D) Measure the focal length, object distance and image distance and write it down as shown in the figure under the graph paper.
What are isotopes.
Please answer soon
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
How long a workout session last is called?
Explanation:
Assuming the strength training sessions last roughly 20 minutes each, that breaks down to about three hours of exercise a week. According to these recommendations, beginner exercisers should work up to three to four 40-minute gym sessions per week.
The American Heart Association recommends 75 to 150 minutes of aerobic activity, and two strength training sessions per week. Assuming that strength training sessions last approximately 20 minutes each, that totals about three hours of exercise per week.
Which statement describes the relationship between bond strength and the melting and boiling points of a substance?
A. As the force between the particles increases, the melting point increases and the boiling point decreases
B. As the force between the particles increases, the melting point decreases and the boiling point increases
C. As the force between the particles increases, the melting and boiling points decrease.
D. As the force between the particles increases, the melting and boiling points also increase.
Answer:
D
Explanation:
The relationship between bond strength and the melting and boiling points can be explained as the force between the particles increases, and the melting and boiling points also increase.Therefore the correct option is D.
What is the boiling point?It is a temperature at which the pressure exerted by the external atmosphere is equal to the vapor pressure of the substance.
The boiling point depends on atmospheric pressure, temperature, bond strength, and vapor pressure of the liquid.
The bond strength between different atoms of the substance greatly influences the boiling point and melting point.
Learn more about boiling point
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Two objects of mass 5 kg and 8 kg at rest F1 and F2 meters force applied on both the boxes respectively If the speed of both the objects after 5 sec become 16m/s and 15m/s respectively find the value of F1 and F2?
Answer:
F1 = 16 N and F2 = 24 N
Explanation:
Formula used => F = m×a and v-u= at
So, as we know force = mass × acc.
so acc. of first block = <math> F1/5 </math>. and acc. of second block = <math> F2/ 8 </math>.......... so as v-u= at.. now
Here u= 0 as the objects are placed at rest initially..
thus, v= at
FOR 1ST BLOCK
16= <math> F1/5 </math> × 5 ==> F1 = 16 N
FOR 2ND BLOCK
15= <math> F2/ 8 </math> × 5 ==> F2= 24 N
A bullet of mass 0.05kg has a speed 400.what is it's kinetic energy.
if the bullet hits a wall of which the average resistive force is 10000 newton.calculate the distance penetrated by the bullet.
Answer:
K.E =1÷2M×V^2
= 1÷2×0.05×(400)^2
= 4000
Explanation:
During heavy exercise, muscle cells use oxygen more quickly than normal. Which system responds by carrying extra oxygen to these muscle cells?
a. digestive b. circulatory c. nervous
d. immune
Answer:
The answer is B. Circulatory
You are so excited that you have finished this test that you give your friend a huge high five with 20N of force.
With how much force does your friend's hand high five you back?
Answer:
20N
Explanation:
newtons 3rd law every action has an equal opposite reaction
I'm not too sure
What is Newton's Laws of motion?
The laws enunciated by Newton, and considered as the most important in classical mechanics, are three: the law of inertia, the relationship between force and acceleration, and the law of action and reaction. Newton argued that all movements adhere to these three main laws, formulated in mathematical terms.
Answer:
In classical mechanics, newton's laws of motion are three laws that describe the relationship between the motion of an object and the forces acting on it.
The simple act of walking requires single leg
full body
and
a strong
and
full body
you are so wise how do you do it?
Starting at -12m a person walks in the negative direction for 15 m then turns around and walks 45m in the positive direction. Where is his final position? What was his overall displacement? How much distance did he travel?
Answer:
We need to define:
When the person walks in the negative direction, we need to subtract the distance walked from the actual position.
When the person walks in the positive direction, we need to add the distance walked to the actual position.
We know that the person starts in the position -12m, then we start with:
Position = -12 m
Then the person walks 15m in the negative direction, then the new position will be:
Position = -12m - 15m = -27m
Now the person walks 45m in the positive direction, then the new position will be:
Position = -27m + 45m = 18m
This is the final position.
Now we want to find the displacement, which is equal to the difference between the final position (18m) and the initial position (-12m)
Then we have:
Displacement = 18m - (-12m) = 18m + 12m = 30m
How much distance he travels?
Here we need to add the absolute value of all the distances that he traveled.
He first traveled 12m and then traveled another 45m
Then the total distance traveled is
Distance traveled = 12m + 45m = 57m
A rocket is fired at 60 to the horizontal with an initial speed of 200m5 calculate it time of flight and it range on the horizontal plane
Answer:
See answer below
Explanation:
In order to do this, we just need to apply the expression to determine the time of flight. This is given by:
t = 2 V₀ Sinθ / g (1)
We have the initial speed which is 200 m/s, the angle of elevation to the horizontalis 60° and the gravity is 9.8 m/s². Replacing this data in the above expression we have:
t = 2 * 200 Sin60° / 9.8
t = 35.348 sNow that we have the time, we can determine the range or distance in the horizontal plane. This can be calculated using the following expression:
X = V * t (2)
We already have the time, which is the time of flight, the initial speed using cos 60° (Cause it's horizontal plane), and replacing we have:
X = 200 cos60° * 35.348
X = 100 * 35.348
X = 3534.8 mHope this helps
Select the correct answer.
Which of these statements is true about heat?
A.heat always flows from cooler to warmer substances
B.heat doesn’t flow between substances
C.heat always flows from warmer so cooler substances
D.heat flows when both substances have the same temperature
Answer:
The correct answer is C. Heat always moves from warm to cool, and cold can not move.
Explanation:
An instrument that simply measures earth waves is a _______
Answer:
Seismograph
Explanation:
Seismograph, instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon.
a passenger in a car moving at a 40 m/s is not moving when which frame reference is used?
How does sound travel? *
Air molecules move in a straight line in one direction.
Air molecules move in waves that sometimes bounce back.
Air molecules move in waves in one direction.
None of the above.
Answer: 2 i think
Explanation:
Answer:Im pretty sure its the second one because sound sometimes bounces back and that causes echo and it doesnt travel in one line or direction
Explanation:
A polar bear runs at a speed of 8.3 m/s, how far will it travel in 60 seconds?
Answer:
it would have run 498 miles
Explanation:
if the polar bear runs 8.3 every second then multiply 8.3 times sixty to get 498
3000 centímetros cúbicos de un gas ideal a 80°C se expande hasta un volumen de 1000 cm³ a presión constante. ¿Cuál es la temperatura final?
Responder:
117,6 K
Explicación:
Dado :
V1 = 3000 cm³
T1 = 80 ° C = 273 + 80 = 353 K
V2 = 1000 cm³
T2 =?
La ley de Fromm Charles;
3000/353 = 1000 / T2
3000T2 = 353 * 1000
T2 = 353000/3000
T2 = 117. 67 k
Please someone help me this is due today anyone please 40 points ?????
Answer:
tsunamis are waves created from A tsunami is a catastrophic ocean wave that is usually caused by a submarine earthquake, an underwater or coastal landslide, or the eruption of a volcano. Tsunamis can also result from the impact of a meteor or comet in a body of water. when one of these events happen all the water near the shore of it will drawn back toward where the tsunamis will form, the waves emerge into one and a tsunamis born, unlike normal waves the tsunami move very fast and they can get very big and more devastating.
a wave is caused by wind, The wind transfers some of its energy to the water, through friction between the air molecules and the water molecules. Stronger winds cause larger waves and a lot of them are not as dangerous as tsunamis, however that's not always the case, since waves like Rogue waves are big and powerful enough to sink ships, ocean liners, and even oil platforms, same with tsunamis.
Explanation:
your darn welcome
HELPPP ILL GIVE YOU BRAINLIST
which example below best illustrates electrical energy being converted into radiant energy?
A ) Fusing hydrogen nuclei in the sun
B ) Igniting fireworks
C ) lighting an Bunsen burner with a flint striker
D ) Turing on a light bulb
Answer:
Turning on a light bulb.
what is the amount of electrical potential is measured by?
Answer:
Voltmeter
Explanation:
The amount of electrical potential is measured by voltmeter.
Electrical potential is the amount of work needed to move a unit electric charge from a reference point to the specific point in an electric field.
The SI unit of electrical potential is Volt.
Answer:
Volts
Explanation:
The electrical potential is measured by volts. I took the quiz.
Rachel hears that there is a southerly wind today. In which direction does this wind blow?
East
West
North
South
MARKING BRAINLST
Answer:
North. The south wind is blowing toward north.
Explanation:
An "west wind" is coming from the west and blowing toward the east.
An "south wind" is coming from the south and blowing toward the north.
An "east wind" is coming from the east and blowing toward the west.
An "north wind" is coming from the north and blowing towards the south.
A southerly wind is a wind that blows to the south direction.
WindThe difference in temperature in a place leads to a difference in atmospheric temperature and hence leads to wind.
There are five types of winds which are trade, planetary, westerlies, periodic and local winds.
A southerly wind is a wind that blows to the south direction.
Find out more on Wind at: https://brainly.com/question/392723
(a) If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 3.0 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g 5 9.80 m/s2 ? (b) Repeat for Mars, where the acceleration due to gravity is 0.38g.
Answer:
See explanation
Explanation:
Range of a projectile is given by; U^2sin2θ/g
When θ = 45°
The maximum range is obtained as;
Rmax = U^2/g
Maximum range on earth = RME = U^2/g
Maximum range in the moon= RMM =U^2/g/6
Maximum range in Mars = RMMA = U^2/0.38g
a)
RME/RMM = U^2/g/U^2/g/6
RME/RMM = 6
But RME = 3 m
RMM = 3 * 6 = 18 m
b)
RME/RMMA =U^2/g/U^2/0.38g
RME/RMMA = 1/0.38
But RME = 3 m
RMMA = 3/0.38
RMMA = 7.9 m
1. How far does a 70 kg object move in meters (m) if it
accelerates at 13 m/s2 and 50 joules of work is done?
Answer:
Units of work would be equivalent to a Newton times a meter. ... An individual force does NOT do positive work upon an object if the object is moving at ... FALSE - Watt is the standard metric unit of power; Joule is the standard metric unit of energy. ... TRUE - A kg•m2/s2 is a mass unit times a speed squared unit, making it a ...
Please helpppppp gymmmm
Answer:
yes
Explanation:
Core exercises train the muscles in your pelvis, lower back, hips and abdomen to work in harmony. This leads to better balance and stability, whether on the playing field or in daily activities. In fact, most sports and other physical activities depend on stable core muscles.
have a nice day
Un cilindro contiene 10 L de oxígeno y otro contiene 10 L de dióxido de carbono, ambos se encuentran a 25 °C. De acuerdo con el modelo cinético de partículas, se puede afirmar que...
Answer:
Ver explicacion
Explanation:
Según el modelo cinético, las moléculas de gas están en constante movimiento.
La energía cinética promedio de las moléculas del gas depende de la temperatura del gas y de la masa molar del gas.
Si los dos gases ocupan el mismo volumen a la misma temperatura, la energía cinética promedio ahora depende de la masa molar de los gases individuales. Cuanto menor sea la masa molar del gas, mayor será la velocidad media de las moléculas del gas.
El oxígeno gaseoso tiene una masa molar menor que el dióxido de carbono. Por lo tanto, el oxígeno tiene una velocidad molecular promedio mayor que el dióxido de carbono.
• Cu + Br
CuBr
2
Is it balanced
Answer:
Cu + Br2 = CuBr2
Explanation:
Written above is the balanced version of the equation. It is a synthesis reaction.
Will mark brainliest if right.
A jet plane flying 600 m/s experiences an acceleration of 4g when pulling out of the dive. What is the radius of curvature of the loop in which the plane is flying?
Answer:
The radius of the curve is 9,183.67 m.
Explanation:
Given;
velocity of the jet plane, v = 600 m/s
acceleration of the jet plane, a = 4g = 4 x 9.8 m/s² = 39.2 m/s²
The radius of the curve is calculated from centripetal acceleration formula as given below;
[tex]a = \frac{v^2}{r} \\\\r = \frac{v^2}{a} \\\\r = \frac{600^2}{39.2} \\\\r = 9,183.67 \ m[/tex]
Therefore, the radius of the curve is 9,183.67 m.
A car travels from 55mps to 10 seconds. What is the acceleration?
Answer: 5.5m/s^2
Explanation: