Answers
Momentum = m×v
=65×2
=130
a/q..
130=25×v
v=130/25
v=5.2
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Related Questions
16. A Jet airliner is crossing the United States from New York to San Francisco going at a velocity
of 870 km/hr. West. What is its relative velocity if it is traveling through the Jet Stream's velocity of 300
km/hr. East?
A. 1170 km/hr.
B. 570 km/hr.
C. 870 km/hr
D. 300 km/hr.
Answers
Answer:C
Explanation:
Write the formula for a partially inelastic collision and explain what all 6 variables are and the unit each is measured in. State Newton’s 3 rd Law of Motion. State the Law of Conservation of Momentum and explain it in your own way.
Answers
Answer:
i don`t get it
Explanation:
A car traveling at 35m/s appliance its brakes 10 seconds later it has a velocity of 5m/s what is the acceleration of the car
Answers
Answer:
a = -3 m/s^2
Explanation:
Vi = 35 m/s
Vf = 5 m/s
t = 10 s
Plug those values into the following equation:
Vf = Vi + at
5 = 35 + 10a
---> a = -3 m/s^2
An atom is electrically neutral.
True or False
Answers
an atom as a whole is electrically neutral
Answer:
true
Reason for answer
it can't be false
Do magnets have to touch each other for a magnetic field to be present?
Answers
Answer:
no
Explanation:
An increase of 180 degrees in Fahrenheit is equal to an increase of how many degrees in celsius?
Answers
Answer:
it is 100 degree which is boiling point in water
How to find the volume of a cylinder? This question is specifically for physics.
Answers
Two charged objects have a repulsive force of 0.040 N. If the distance separating the objects is doubled, then what is the new force?
Answers
Answer:
Force will be 1/4 of the original
Explanation:
F = G m1 m2 / d^2 now change the distance to 2d
F = Gm1m2 / (2d)^2
F = 1/4 G m1 m2 / d^2 the force is reduced to 1/4 of the original
Number of protons are equal to the number of electrons
Answers
Explanation:
the no of proton of an element is found in the inner part of the orbital of an element along with the neutron ,also knowing that this two add up to give mass no an element
where neutron+proton=mass no=nucleon no,where proton= electron, unless it carries charges call ion
Which prefix is needed when naming SO3?
tri-
penta-
mono-
di-
Answers
Answer:
Tri
Explanation:
This compound is sulfur tri-oxide
Answer: sulphur trioxide
Explanation: you need to express number of atoms in a molecular compound
Di =2. Tri 3 tetra 4
what is the demand for resources, such as food, water, and shelter.
Answers
Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes them apart, and they then fly off in opposite directions, free of the spring. The mass of A is 5.00 times the mass of B, and the energy stored in the spring was 46 J. Assume that the spring has negligible mass and that all its stored energy is transferred to the particles. Once that transfer is complete, what are the kinetic energies of each particle?
Answers
Answer:
Particle A: K.E = 38.3 J
Particle B: K.E = 7.67 J
Explanation:
Given that Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes them apart, and they then fly off in opposite directions, free of the spring. The mass of A is 5.00 times the mass of B, and the energy stored in the spring was 46 J. Assume that the spring has negligible mass and that all its stored energy is transferred to the particles. Once that transfer is complete, what are the kinetic energies of each particle?
The total kinetic energy of Particle A and particle B should be equal to 46 J
Since the mass of A is 5.00 times the mass of B, then, the K.E energy of each particle can be calculated by using ratio.
5 + 1 = 6
K.E for particle A
5 /6 × 46 = 230 / 6 = 38.3 J
K.E for particle B
1/6 × 46 = 46 / 6 = 7.67 J
Addition of a lubricant such as oil to a surface will __ friction ?
Answers
Answer:
decrease
Explanation:
Addition of a lubricant such as oil to a surface will decrease friction. This makes the surface more greasy or slippery. This is very much efficient in machines, for example.
A 0.78-kg blob of clay strikes a wall at speed 23 m/s. The clay comes to a stop in 0.26 s. What is the average force that the wall exerts on
the clay?
A-69 N
B- 49 N
C- 36 N
D- 55 N
Answers
Answer:
A
Explanation:
Paula ran a total of 72meters directly toward school at a constant velocity. She ran one-third of that distance in 8seconds. What was her velocity?
Answers
Answer:
3 meters per second
Explanation:
72 divided by 3= 24 meters in 8 seconds
24/8= 3, so 3 meters per second
Help ASAP!! Three factors that affect the solubility of a substance are pressure, the type of solvent, and __________
Answers
Answer:
Volume
Explanation:
what is force ? explain in simple language!!
Answers
Answer:
This is your answer . If I'm right so,
Please mark me as brainliest. thanks!!!
I need help!!!!!!!!! Somebody please help me!!!!!!!!!!!!!
What is the energy (juice) of the current measured in volts?
Answers
I need help!!!!!! Somebody help me please!!!!!!!!
A parallel circuit will still work as long as electricity can do what?
Answers
Can run through the circuitAnswer:
Explanation:
A circular turntable rotates at constant angular velocity about a vertical axis. There is no friction and no driving torque. A circular pan rests on the turntable and rotates with it: see the sketch at right. The bottom of the pan is covered with a layer of ice of uniform thickness, which is, of course, also rotating with the pan. The ice melts but none of the water escapes from the pan. Is the angular velocity now greater than, the same as, or less than the original velocity
Answers
Answer:
the moment of inertia of the water increases, therefore the angular velocity must decrease
Explanation:
To analyze this exercise we see that the system is isolated therefore the angular momentum is conserved
initial instant. The plate with the ice cap (solid)
L₀ = I₀ w₀
where Io is the moment of inertia of the plate plus the ice disk
I₀ = ½ M r² + ½ m r²
where M is the mass of the plate and m is the mass of the ice
final instant. When the ice has melted, therefore we have water that is a liquid and as the system is rotating it accumulates towards the periphery of the system,
L_f = I w
in this case the moment of inertia is
I = ½ M r² + I_water
the moment of inertia of water if it is concentrated in a thin ring is
I_{water} = mr²
we can see that the moment of inertia increases
how angular momentum is conserved
L₀ = L_f
(½ M r² + ½ m r²) w₀ = (½ M r2 + I_{water}) w
w = [tex]\frac{ \frac{1}{2} Mr^2 + \frac{1}{2} m r^2 }{\frac{1}{2} Mr^2 + I_{water} } \ w_o[/tex] w
we can see that the moment of inertia of the water increases, therefore the angular velocity must decrease
Please help this is about ecology. Who ever answers it first correctly I will give brainliest
Answers
Which list places the layers of the sun in the correct order from outermost to innermost?
A. Corona, chromosphere, photosphere
B. Photosphere, radiative zone, convective zone
C. Convective, chromosphere, corona
D. Radiative zone, corona, convective zone
Please help me. Thank you so much!!!
Answers
Answer:
The Sun's layers consist of the following in this order.
1) Corona
2) Transition Region
3) Chromosphere
4) Photosphere
5) Convection Zone
6) Radiative Zone
and last but not least 7) The Core
Hope this helps ;)
which statement about electromagnetic waves is true?
A: They move slowly.
B: They carry matter from one place to another.
C: They need a medium to travel through.
D: They can travel through a vacuum
**Physical Science
Answers
Answer:
B
Good luck! Have a great day!
Tarzan is swinging back and forth
on a 6.25 m long vine. What is the
period of his oscillation?
(Unit = s)
Answers
Answer:
5.02s
Explanation:
I got it right in acellus :)
The period of the oscillation when Tarzan is swinging back and forth so it should be 5.01 seconds.
Calculation of the period:Since
Length L = 6.25 m
g = 9.8 m/s²
So,
T = 2π√(L/g)
T = 2π√(6.25 / 9.8)
T = 5.01 sec
Hence, The period of the oscillation when Tarzan is swinging back and forth so it should be 5.01 seconds.
Learn more about oscillation here: https://brainly.com/question/26044136
A toy car with a resistance of 20.0 ohms is connected to a 6.0 volt battery.
How much current flows through the car?
Answers
Answer:
0.3 A
Explanation:
The current of the car can be found using the formula:
Current = [tex]\frac{Voltage }{Resistance}[/tex]
= [tex]\frac{6}{20}[/tex]
= 0.3 amps
A drag racer accelerated from rest to 195 m/s in 6.5 s. What was the acceleration?
Answers
What determines an object’s mass?
A. Amount of matter
B. Amount friction
C. Amount of force
D. Amount gravity
Answers
Answer: D
Explanation:
5. Find mass if a 20N force accelerates an object at 2.5
m/s/s
Answers
Hey,
QUESTION )Following the second Newton's Law :
✔ We apply : F = m x a ⇔ m = F/a with F in N, m in kg and a in m/s²
m = 20/2,5 m = 8 kgthe object therefore has a mass of 8 kg
which one of these is an exanple of precepation?
Clouds
Snow
Air
Vapor
Answers
Answer:
Snow
Explanation:
Precipitation is the formation of a solid after being a liquid. Snow, which is a solid, forms from water, a liquid.
What role is the president carrying out when he gives the state of the union address?
Answers
Answer:
The address fulfills the requirement in Article II, Section 3, Clause 1 of the U.S. Constitution for the President to periodically "give to the Congress Information of the State of the Union, and recommend to their Consideration such measures as he shall judge necessary and expedient."
Explanation:
Answer:
I think it's A. Commander in Chief
Explanation: