Answer:
The answer to this question would be 3.6 m/s
How much energy does a 50kg rock have if it sitting on the edge of a 15m cliff
Answer:
14715 joules
Explanation:
Suppose that a particular artillery piece has a range of R=9240 yards. Find the range in miles
Answer:
5.25[mile]
Explanation:
We must remember that the yard is a measure of length of the imperial system and that a Mile is also a unit of length of that system.
Therefore we must use a conversion factor that relates the yard to the mile.
[tex]9240 [yard]*[\frac{0,000568182miles}{1yard} ]=5.25[miles][/tex]
A car starts to move from point A to B such that its displacement becomes 150m. This
motion was provided by a driving force of 66MN, calculate the Kinetic energy of the
body at B.??
Answer:
sorry I cannot give the answer I know only little bit about it
To calculate the kinetic energy of the car at point B, we first need to determine its velocity at that point. We can use the work-energy principle to relate the work done by the driving force to the change in kinetic energy of the car:
Work done by driving force = Change in kinetic energy
The work done by the driving force is equal to the product of the force and the displacement:
Work done = Force x Displacement = 66 MN x 150 m = 9.9 GJ
The change in kinetic energy is equal to the final kinetic energy minus the initial kinetic energy. Assuming the car starts from rest at point A, its initial kinetic energy is zero. Therefore, the final kinetic energy at point B is equal to the work done by the driving force:
Final kinetic energy = Work done = 9.9 GJ
Note that we converted the force to MN (meganewtons) and the energy to GJ (gigajoules) to match the SI unit system commonly used in physics calculations.
Which statement about elements and atoms is true?
Atoms are the smallest unit of an element.
Atoms are made of particles called elements.
Elements are made of more than one type of atom.
Elements are easily broken down into atoms by a physical reaction.
A car starts from rest down a straight, flat road and gets up to 22 m/s after 33 seconds.
a) Find acceleration.
b) How far did it go during this time?
Answer:
Explanation:
Acceleration = distance / time
= 22 / 33 = 2/3
Alan travels 100 km in 5hrs. Find his average speed in km/h
Answer:
The answer is 20 km/hrExplanation:
The average speed of an object given the time and distance covered can be found by using the formula
[tex]a = \frac{d}{t} \\ [/tex]
where
d is the distance
t is the time
From the question
d = 100 km
t = 5 hrs
We have
[tex]a = \frac{100}{5} \\ [/tex]
We have the final answer as
20 km/hrHope this helps you
A man weighing 490N on earth weighs 81.7N on the moon.His mass on the moon is kg
His mass is 50 kg . . . on the Moon, on the Earth, in the capsule rocketing between them, and on Halley's comet if he ever goes there.
Answer:
50kg
Explanation:
The mass of a man on the Earth and the moon is the same, so we only need to use the 490N weight on Earth.
The formula for mass is m=w/g. Plugging in the values, we can determine that m=490N/9.8m/s^2. (g is gravitational constant, which is approximately 9.8m/s^2 on Earth)
The reason that the unit in the answer is in kg is because one newton (N) is 1kg*m/s^2. The m/s^2 is cancelled out by the m/s^2 in the gravity constant, so it leaves kg.
m=50kg
A plate moves 200 m in 10,000 years. What is its rat in cm/year
Answer:
2cm/year
Explanation:
20000/10000=2cm/year
Help me plzzz I need answers
Answer:
i think it is B
Explanation:
25. Describe how the atomic mass unit (amu) was derived and how the mass of the electron relates to the
mass of the nuclear particle.
HELP ASAP
Answer:
ok
Explanation:
PLS HELP
what’s acceleration of car if it accelerates from 5.0 m/s to 18.0 m/s in 5.4 s ? (2.4 m/s^2) ?
You are driving from Seattle to Portland, a distance of 174
miles (280,000 meters). Since most of your journey is on 1-5, your average
speed will be 65MPH, or 30 meters per second. How long does it take you
to get to Portland? Select the BEST answer from the ones listed below.
3 hours 4 minutes
2 hours 20 minutes
2 hours 35 minutes
2 hours 15 minutes
Answer:
driving distance = 174 miles
The distance by car is 278 km. Follow the Seattle to Portland driving route along I-5 S. Get driving directions from Seattle to Portland.
flight distance = 145 miles
Explanation:
Waves that make up the visible part of the electromagnetic spectrum have
Answer:
the visible part of the electromagnetic spectrum is somewhere between 2 and 10 1.24 eV and x rays 1 to 12 keV
Explanation:
the visible part of the electromagnetic spectrum is somewhere between 2 and 10 1.24 eV and x rays 1 to 12 keV
Regarding Newton's 3rd Law, do we always see an equal effect on each object? Aka, are both objects always affected the same? Why so?
Answer:
not always ot depends mostly on the mass of each object and how the collode
What is the fastest speed at which a tennis ball can cross the net horizontally and still land in the court? From the net to the end line is 12 m, and the height of the net is 1 m. Neglect air resistance and spin on the ball.
A. 0.04 m/s
B. 27 m/s
C. 53 m/s
D. 45 m/s
self note *6
Answer:
B. 27 m/s
Explanation:
The horizontal velocity of the ball is 27 m/s
The given parameters;
horizontal distance, x = 12 mheight of the net, h = 1 mThe time of motion is calculated as;
h = ut + ¹/₂gt²
1 = 0 + (0.5 x 9.8)t²
1 = 4.9t²
[tex]t^2 = \frac{1}{4.9} \\\\t^2 = 0.205\\\\t = \sqrt{0.205} \\\\t = 0.45 \ s[/tex]
The horizontal velocity of the ball is calculated as;
X = uₓt
[tex]u_x = \frac{X}{t} = \frac{12}{0.45} = 26.7 \ m/s \ \approx 27 \ m/s[/tex]
Thus, the horizontal velocity of the ball is 27 m/s
Learn more here:https://brainly.com/question/9606019
is it possible that during the big bang the laws of physics changed?
Answer:
yes, so many answers to that like possibilities
Explanation:
i watch a movie
During a phase change, a substance undergoes a(n) *
HELP
reversible change from one state to another.
irreversible change to a different substance
irreversible change from one state to another.
reversible change to a different substance.
Answer:
Reversible change from one state to another
Hope this helps
:)
How much energy must be absorbed by water with a mass of 0.5 kg in order to raise the temperature from 30°c to 65°C?
Water has a specific heat of 4,190 j/kg°C
Answer:
Q = 67.04 [J]
Explanation:
In order to solve this problem, we must use the following equation of thermal energy, which relates mass to specific heat and temperature change.
[tex]Q = m*c_{p}*(T_{2} -T_{1})[/tex]
where:
Q = thermal energy [J]
m = mass = 0.5 [kg]
Cp = specific heat = 4,190 [J/kg°C]
T2 = final temperature = 65 [C]
T1 = initial temperature = 30 [C]
Now replacing:
Q = 0.5*4.190*(65 - 30)
Q = 67.04 [J]
what is the number pattern for 7 12 17 22
Answer:
add 5 each number
Answer:
Increase by 5 each time.
Explanation:
How do the magnetic and electrical components of electromagnetic waves travel in relation to each other? at right angles toward each other in a circular motion parallel to each other
Answer: A
Explanation:
Answer:
it is a
Explanation:
How can a person’s movement away and towards a reference point be analyzed using a position-time graph?
Answer:
Explanation:
You can plot their change in position per unit of time. By taking the slope of this graph, you can figure out the velocity at any point
An____ collision occurs when an arrow hits the target.
Answer:
I think it's An inelastic collision occurs when an arrow hits the target because when the arrow hits it, the target and the arrow do not bounce away from each other.
Explanation:
3. A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. What is
his new velocity?
Answer:
v=u+at
v=8+(4x2)
v=16m\s2
Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid?
Lavoisier and Mendeleev
Döbereiner and Newlands
Newlands and Mendeleev
Lavoisier and Döbereiner
Answer:
The chemists that organized elements based on properties such as how the elements react or whether they are solid or liquid are Lavoisier and Dobereiner
Lavoisier basis of theory is on the various properties of metals, nonmetals and gases.
Dobereiner gave the law of triads. In this theory the middle element is the average of the other two elements.
Answer:
d. Lavoisier and Döbereiner
Explanation:
Stars go through a life cycle. What is the expected outcome for a star much more massive than the sun?
Answer:
Big stars, about 5 - 25 times the mass of sun, usually they collect so much of matter and energy that they just explode, this explosion is called supernova. A supernova is a powerful and luminous stellar explosion. This astronomical event occurs during the last evolutionary stages of a massive star.
If my answer helped, please mark me as the brainliest!!
Thank You!
heal
Why is Mercury usedcommonly
as Thermometric substance?
Answer:
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion.
Explanation:
Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
Hope this helps :)
an object near the surface of a planet falls 54m in 3s. what is the acceleration due to gravity on that planet
Answer:
12s
Explanation:
1.
In 10 seconds a car accelerates 4m/s? to 50 m/s.
How fast was the car going before it accelerated?
2.
Variables:
Equation and Solve:
In 10 seconds a car accelerates 4m/s2 to 50 m/s. How fast was the car going before it accelerated?
Answer:
i love devon bostick
Explanation:
cause....... i do
Answer: It was going 4 m/s
Explanation:
Use this graph to answer.
Calculate the turtle’s velocity during the following time intervals: 0-2
Answer:
10 m/s
Explanation:
Find the displacement.
xf - xi = d
0 - (-10) = 10 m
Find the acceleration.
d = 1/2at^2
10 = 1/2a(2)^2
10 = 1/2a(4)
10 = 2a
a = 5 m/s^2
Find the velocity.
v = at
v = 5(2)
v = 10 m/s
How many meters are in a gigameter?
Answer:
1 gigameter = 1e+9 meter
