Can someone please help me I don’t understand this
Convert 35 centimeters to inches
Answer:
13.7795276 Inches
Explanation:
A dishwasher has a power of 1 kW. It is used for 2 hours. How much energy will it transfer?
Answer:2kwh
Explanation:
If energy is conserved, then:
O A. initial (PE + KE) = final (PE + KE).
O B. the initial KE must be zero.
O C. the momentum does not change.
O D. PE(before) = KE(before).
If energy is conserved, then initial (PE + KE) = final (PE + KE). So, the correct option is A.
What is meant by Law of Conservation of Energy ?The law of conservation of energy states that, energy can neither be created nor be destroyed, but can be transformed from one form to another.
Here,
According to law of conservation of energy,
The total energy of an isolated system remains constant. That means, the total energy of the system in the initial state will be same as that in the final state.
The total mechanical energy is the sum of kinetic energy and potential energy.
TE = KE + PE
Therefore, the energy to be conserved in the system,
Initial TE = Final TE
So, Initial (KE + PE) = Final (KE + PE)
Hence,
If energy is conserved, then initial (PE + KE) = final (PE + KE).
To learn more about law of conservation of energy, click:
https://brainly.com/question/29775341
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a body has a speed of 80 kilometre per hour how long it will take to travel 120 kilometre
Answer:
1.5 hour
Explanation:
Time = distance/speed
Time= 120/80 = 1.5 hour
The ____ of a machine is the factor by which it multiplies the force applied to the machine.
The mechanical advantage of a machine is the factor by which it multiplies the force applied to the machine.
If two bodies have different forces but same acceleration and only one force is known how do I find the other one?
Answer:
Use F = m*a
Explanation:
If you are given the mass of the two different bodies, you could rearrange these equations, plug in the mass of the unknown body to find the unknown force
What is the speed of a walking person in m/hr if the person travels 1000 m in 30 minutes?
what is the second low of motion
Answer:
the law of force and accerleration
Explanation:
is the law where the acceleration of an object is directly related to the net force and inversely related to its mass
HELP MEH I WILL BIVE BRAINLYEST !!
Which aspect of soil characteristics is a soil triangle used for? (10 points)
Group of answer choices
Determining color
Determining types of soils
Separating soils by grain size
Determining soil conservation techniques
Answer:
The correct answer is Separating soils by grain size. Among all the other choices, this is the aspect of soil characteristics in which a soil triangle is used for.
Explanation:
Sam studied kinetic and potential energy by observing apples on a tree during a field investigation. Explain what type of energy these apples have.
Answer:
Gravitational Potential Energy
Explanation:
Physics- Static Equilibrium Please show work :(
A uniform, horizontal 300 N beam, 5.00 m long, is attached to a wall by a pin connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 53.0° with the horizontal. If a 600 N person stands 1.50 m from the wall, find the tension in the cable and the force exerted on the beam by the wall
Answer:Given A uniform horizontal beam with a length of 8.00 m and a weight of 200 n is attached to a wall by a pin connection ( allows rotation). Its far end is supported by a cable that makes an angle of 53 degrees with the horizontal. If a 600 n person stands on the beam at 2.00 m from the wall , find the tension in the cable
Now the force acting on the beam are the gravitational force of earth and weight attached to a wall is 200 N which acts at centre. Also force of person standing is 600 N and force exerted is r and tension is T , also torque due to r is zero because it acts at the pivot point. So r = 0
Torque due to tension in the rope is sin 53 x 8.00 x T.
Torque due to force is 2.0 m x 600 N
The weight of beam acts in the centre since the beam is uniform.
So we have
sin 53 x 8.00 x T - 2 m x 600 N - 4 x 200 N = 0
8 .00 x 0.8 x T = 1200 + 800
0.64 T = 2000 N-m
T = 2000 / 0.64
T = 312.5 N
Explanation:
The tension in the cable and the force exerted on the beam by the wall will be 312.5 N and 1200N respectively.
What is force?Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The given data in the problem is;
L is the length 5.00 m long,
[tex]\rm \theta[/tex] is the angle of 53.0°
d is the distance = 1.50 m
T is the tension in the cable
F is the force exerted on the beam by the wall= ?
Torque due to tension in the rope is
[tex]\rm \tau = 8.00 \times sin 53^0 \times T[/tex]
Force due to the torque will be;
F= 2.0 m x 600 N
F= 1200 N
The net tension is found as on applying the static equilibirium equation;
sin 53 x 8.00 x T - 2 m x 600 N - 4 x 200 N = 0
8 .00 x 0.8 x T = 1200 + 800
0.64 T = 2000 N-m
T = 2000 / 0.64
T = 312.5 N
Hence the tension in the cable and the force exerted on the beam by the wall will be 312.5 N and 1200N .
To learn more about the force refer to the link;
https://brainly.com/question/26115859
What makes a ship float
Answer:
Ships can float because a ship is less dense than that of the water that it floats on.
Explanation:
Hope this helps!
Should Native Americans be allowed to use peyote in their religious rituals? Why or why not? Provide support for
your position.
Answer:
Native Americans should be allowed to use peyote in their religious rituals. The United States should not restrict access to peyote and should not interfere with the use of peyote in Native American rituals. Many religious communities use a substance that can cause a change in consciousness during their ceremonies, including Christian communities who use wine as part of their sacrament. Native Americans use the peyote responsibly and should not be restricted from its use.
Explanation:
yup
6. A wave has a frequency of 600 Hz and is traveling at 300 m/s. What is its
wavelength?
Answer:
0.5m
Explanation:
v=f×lamda
v is 300m/s, f is 600Hz, lamda is ?
lamda=v/f
lamda=300/600
lamda =3/6=1/2m
PLZZ HELP ASAP!! WILL GIVE BRAINLIEST AND 20 POINTS
Answer:
Choice C
Explanation:
if it takes you 20 joules of work to move a couch 10 meters in 10 seconds, what is the power?
Answer:
Power = 2 j/s
Explanation:
Power = Work / Time
= 20/10
= 2 j/s
Hoy air always flows up.
true or false?
Answer:
The answer of the question is False
PLEASE HELP ILL GIVE CROWN!!!
the main difference between weather and climate is-
A ) Weather occurs daily, while climate is the average of weather over a long period of time.
B ) Climate occurs daily, while weather is the average of climate over a long period of time.
C ) Weather is not affected by ocean and wind currents but climate is.
D ) Climate is not affected by ocean and wind currents and wind currents but weather is.
Answer:
A :)
Explanation:
....................
Answer:
Shoukd be A
Explanation:
Weather reflects the short term conditions while climate is average for the certain location
The bulb is not on because the switch is___
and there is a____in the circuit.
The bulb will come on if you___
Answer:
OPEN, INTERRUPTION, CLOSED
Explanation:
In this exercise, you are asked to complete the expression with the correct words.
Let's resist an important concept when a circuit has a path leaving a point and can return to the same point, it is said that the circuit is closed and current can circulate.
Now let's complete the expression is
The bulb is not on because the switch is__OPEN_
and there is a_INTERRUPTION___in the circuit.
The bulb will come on if you_CLOSED__
1. How does a lunar eclipse happen?
2. How does a solar eclipse happen?
3. Which one occurs more often?
Answer:
1.lunar eclipse- happen when Earths shadow block the sun light
2.solar eclipse-A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight
3. lunar and solar eclipses occur with about equal frequency. Lunar eclipses are more widely visible because Earth casts a much larger shadow on the Moon during a lunar eclipse than the Moon casts on Earth during a solar eclipse. As a result, you are more likely to see a lunar eclipse than a solar eclipse.
Explanation:
How do we find work from a force-displacement graph when the force exerted
is not constant?
Answer:
Explanation:
Read forces directly from the graph.
Read displacements directly from the graph.
Use the area under the graph to find the work done by the force. This is equal to the kinetic or potential energy the object gains due to the application of the force.
If two alpha particles (each with two protons and two neutrons) are 0.500 m apart, what is the electric potential energy of the system?
Answer:
U = 1.84 10⁻²⁷ J
Explanation:
Electric potential energy is
U = k q₁q₂/ r
in this case the electric charge is
q = 2 p
q = 2 1.6 10⁻¹⁹
q = 3.2 10⁻¹⁹ C
indicate the distance between the charges is 0.500 m
we calculate
U = 9 10⁹ 3.2 10⁻¹⁹ 3.2 10⁻¹⁹ /0.500
U = 1.84 10⁻²⁷ J
PLEASE HELP PHYSICS
Wiley coyote pushes a 5kg boulder from an initial height of 10m, the boulder rolls down the hill, across the road, and up the hill on the left. The rock is able to reach a height of 17 m before rolling back down. How fast did Wiley have to push the rock to make this happen?
Answer:
v = 11.7 m / s
Explanation:
For this exercise we can use the conservation of energy
starting point. Where you drop the stone
Em₀ = K + U = ½ m v² + m g h₁
final point. Point where the stone arrives
Em_f = U = mgh₂
We are assuming that there is no friction, so the energy is conserved
Em₀ = Em_f
½ m v² + m g h₁ = m g h₂
v² = 2g (h₂-h₁)
let's calculate
v² = 2 9.8 (17 - 10)
v = √137.2
v = 11.7 m / s
What part of the atom contains the protons and neutrons?
The atom
The electron cloud
The nucleus
The bottom part
A 1500 kg car is being lifted by a hydraulic jack attached to a flat plate. Underneath the plate is a pipe with radius of 24 cm at the top and 2cm at the bottom. To generate an upward acceleration for the car of 1.0 m/s2, how much force must be applied to the small end of the pipe? The answer is NOT 102 N btw
Answer:
The force that must be exerted at the other end is 102.08 N/m₂
Explanation:
Using Pascal's formula; P₁ = P₂
P₁ = F₁/A₁ = m*g/(πr²)
m = 1500 kg; g = 9.8 m/s², r = 24 cm = 0.24 m
P₁ = (1500 * 9.8)/(22/7 * 0.24 * 0.24)
P₁ = 81235 N/m²
P₂ = F₂/A₂
A₂ = πr² where π = 22/7; r = 2.00 cm = 0.02m
A₂ = 22/7 * 0.02 * 0.02 = 0.00126 m²
P₂ = F₂ / 0.00126 m₂
substituting in the formula P₁ = P₂
81235 N/m² = F₂ / 0.00126 m²
F₂ = 81235 N/m² * 0.00126 m²
F₂ = 102.08 N/m₂
Explanation:
Answer:Why does water stop flowing out of the top hole even before the water level falls ... Calculate pressure on the bottom of the pool due to the water. 3. ... 2. If the ratio of A2 to A1 was 100, what force would be required to lift a 10000 N car? ... A cylinder with a radius of 11 cm and a height of 3.4 cm has a mass of 10.0 kg. a.
Explanation:
The kind of heat transfer that travels through space in electromagnetic waves is?
Answer:
radiation!
Explanation:
Answer: Radiation is the thermal transmission of heat energy across space.
Explanation:
4. Uncle Harry weighs 180 pounds. What is his mass in kilograms?
What is the frequency of a wave when it speeds up at 5 m/s for a distance of 25 m?
Answer:
0.2Hz= frequencyExplanation:
given=
v = 5m/s
distance = 25m
time= distance/ speed = 25/5
T= 5
and frequency = 1/T
= 1/5 = 0.2 Hz
hope this will help you
explain the coin in water appears to be raised..
Answer:
defraction
Explanation:
when light passes from a less dense medium(air) into a dense medium(water) the light rays bend towards the normal. This makes the coin look closer