P=VI
P=0.5(1.5)P=0.75WOption B
Answer:
b) 0.75 W
Explanation:
Given that,
→ Potential difference (V) = 1.5 V
→ Current (I) = 0.5 A
→ Power (P) = ?
Formula we use,
→ P = V × I
Then the answer will be,
→ P = V × I
→ P = 1.5 × 0.5
→ [ P = 0.75 ]
Hence, the power is 0.75 W.
What roles do the musk ox play in the tundra ecosystem? (Select all that apply.)
1 predator
2 primary consumer
3 prey
4 producer
Answer:
it's pray hoped this helped
Answer: primary consumer and prey
Explanation: hope it helped
URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
Answer:
make a rain bow
Explanation:
hope this helps
Many unintentional injuries can be prevented by
a. being deliberate.
b. avoiding trouble.
c. taking precautions.
d. staying home.
Answer:
The answer is C
Explanation:
unintentional injuries can happen anywhere so it's best to take precautions
A 62.2 kg woman lifts herself 31.8 cm each time she does a chin-up. What force does she exert in lifting herself to the chin position
Answer:31
Explanation:
Which invention was created to help people with hearing problems? the multiplex telegraph the telephone the phonograph the motion-picture machine.
The phonograph was invented for people with hearing problems. Option D is correct.
What is a Phonograph?It is a device that records sounds or music in the grooves of a plate and plays them.This was the first invention that can record and play music.It was invented by Thomas Alva Edison. This device helps people with hearing problems by allowing them to practice concentrating on a different sound.
Therefore, the phonograph was invented for people with hearing problems.
Learn more about Phonograph:
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the frequency of a wave is 12Hz the wave length is 5m what is the speed of the wave
Answer:
60 i think is the answer correct me if i am wrong
Explanation:
what is magnetic induction?
Answer:
magnetic induction
noun
1.
magnetic flux or flux density.
2.
the process by which an object or material is magnetized by an external magnetic field.
Magnetic induction is the process or concept of induced magnetism.
Detailed response:
A magnet is a magnetic field producing material, a magnetic field is a
force field that attracts ferromagnets and repels or attracts other magnetic
materials.
Induction is the process by which a thing or property is brought about.
Magnetic induction is the process by which ferromagnetic materials are converted into magnets. It is the induction of magnetism in a material placed in a magnetic flux or field.Learn more about magnetic induction here:
https://brainly.com/question/10736183
what is the speed at the bottom of the hill of the car?
Answer:
27.8 cm answer right or wrong I don't know
As an object moves, the distance it travels increases with time.
Agree
Disagree
Answer:
Disagree
Explanation:
I disagree because an object can be moving backwards and the distance would decrease.
sorry if im wrong
An ostrich with a mass of 146 kg is running to the right with a velocity of 17 m/s. Find the momentum of the ostrich. (Numerical value only)
2482 kg. The answer is also in the image
I wasted my time, pls help me with this again
Answer:
current = 0.364 A
Explanation:
Resistance = Voltage / Current
33 ohms = 12 Volt / current
current = 12 / 33
current = 0.364 A
What is the velocity of a cyclist with a combined mass of 150 kg as he travels with a one 10,492 J of kinetic energy?
Answer:
11.9m/s
Explanation:
Explain why a tennis ball and a cricket ball dropped together will hit the ground at
about the same time, even though the cricket ball is heavier.
Answer:
because the gravity around them is the same
also air resistance
Explanation:
the force of gravity tries to make everything accelerate downward at EXACTLY the same rate, no matter how light or heavy it is. This means that if you dropped a basketball and a tennis ball at the same time (from the same height) they will hit the ground at the same time (try it!)
Which statement best describes electrons?
They are positive and remain inside the atomic nucleus.
They are positive and orbit outside the atomic nucleus.
They are negative and remain inside the atomic nucleus.
They are negative and orbit outside the atomic nucleus.
When a 45 kg cannon ball leaves a barrel it has a momentum of 14000 kg.m/s. What
is the speed of the ball at the end of the barrel?
describe at least 3 ways the energy is generated?
Biomass, Fossil Fuels, Hydroelectric, Solar Energy
Answer: 1. Spinning a magnet inside a coil. Electromagnetic induction IOW
2. Photo electricity
3. Thermo electricity
Velocity is different from speed because it has size and what?
Answer:
direction
Explanation:
Which quote best reveals why sowers was successful in achieving her goal?
The quote which best reveals why Sowers was successful in achieving her goal is "Make sure i'm not the last."
What is a goal?A goal can be defined as an outcome statement and strategic objectives that defines what an individual or a group of people (team) hopes to successfully achieve (accomplish) in the future i.e over a specific period of time.
This ultimately implies that, a goal is simply a futuristic idea or desired result that an individual envision, plan and commit to achieve over a specific period of time.
In this context, Katie Sowers a superbowl coach, set a goal for herself with the quote "Make sure i'm not the last" and she was quite successful in achieving her goal.
Read more on goals here: brainly.com/question/24693533
What is the order of magnitude in scientific notation
Answer:
The order of magnitude is the power of 10 a number is raised to when it's in scientific notation. For example, the order of magnitude for 19,400 would be 4. This is because when we convert it into scientific notation, 1.94×104, the 10 is being raised to the 4th power.
Answer:
The order of magnitude is the power of 10 a number is raised to when its in scientific notation
Q1) An average force of 50.0 N is exerted on a 4.0-kg cart for 2.0 seconds.
a. What is the impulse?
b. What is the change in momentum?
c. What is the mass's change in velocity?
The impulse on the 4 kg cart is 100.0 Ns, the change in momentum is 100 kgm/s, and the change in velocity is 25.0 m/s.
What is Impulse?Impulse is a term which is used to describe or quantify the effect of forces which are acting over time to the change in the momentum of a moving object. Impulse is represented by the symbol J and is expressed in Newton-seconds or kg m/s.
The impulse on the 4 kg cart is:
The impulse I = F × t
where, F =average force = 50.0 N and
t = time = 2.0 s
Substituting these two values into the equation, we get
I = F × t
I = 50.0 N × 2.0 s
I = 100.0 Ns
The impulse is 100.0 Ns
The change in momentum of the cart will be equal to:
Since, change in momentum Δp = I
where, I = impulse
Since I = 100.0 Ns,
Substituting this into the equation, we have
Δp = I
Δp = 100.0 Ns
Δp = 100 kgm/s
The Mass's change in velocity will be:
Change in velocity = 25.0 m/s
Since, the change in momentum Δp = mΔv
where, m = mass = 4.0 kg and
Δv = change in velocity
Δv = Δp/m
Substituting the values of these variables into the equation, we have
Δv = Δp/m
Δv = 100.0 kg m/s / 4.0 kg
Δv = 25.0 m/s
Therefore, the change in velocity is 25.0 m/s
Learn more about Force here:
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Please help will give brainleast
A 2kg 2 kg object is moving in along the x x -axis under a single conservative force. When the object is at position x=0 x = 0 , its speed is 3ms 3 m s . The potential energy U U associated with the conservative force is given as a function of x x by the equation U=αx2 U = α x 2 , where α=4Nm α = 4 N m . Which of the following is correct about the motion of the object?
Answer:
The particle comes to rest before reaching the position x=4m.
Explanation:
When the object is at x=0m, all of its energy is kinetic energy. Using the equation for kinetic energy yields KE=1/2mv^2=(12)(2)(3)^2=9J. Using the given equation for potential energy when the object is at x=4m yields U=4x^2=4(4)^2=64J. Since the system only has 9J of energy, the object comes to rest before reaching x=4m.
please someone answer this
Answer:
you just have to draw a line from the eye reflecting from the mirror to the object shown.
Explanation:
Dont come at me if its wrong. I think thats what their asking of you.
Help asap I will give brainleast
A 10 kg ball is traveling 5 m/s east and a 5 kg ball is traveling 10 m/s west. Which has more momentum?
Answer:
5 kg * 10 m/s = 10 kg * 5 m/s = 50 kg m / s
They both have a scalar momentum of 50 kg m / s
A 2.5 x 10^3 kilogram truck with rubber tires moves
through a 120 meter radius turn on a dry asphalt
surface.
Calculate the maximum speed with which the
truck could have made this turn. (Ff=2.1 x 10^4)
Answer:
The question implies that force of friction is 2.1E4 N
F = M v^2 / R frictional force needed to supply this centripetal force
2.1E4 = M v^2 / R
v^2 = R * 2.1E4 / M
v^2 = 120 * 2.1E4 / 2.5E3 = 1200 * 2.1 / 2.5 = 1008 m^2/s^2
v = 31.7 m/s max speed of truck (about 70 MPH)
How are the strong winds associated with the tornado in diagram C product
Answer:
there is no diagram, but i can try to help
Explanation:
strong winds bonding together (i.e hot and cold) help form the tornado, depending on the weather depends on how long it can go on, if more hot and cold are feeds into it, it will get faster and last longer. it is just like dust devils, it is wind and dirt mixing to make a tornado, the more wind and dirt the worst it will be
Why is a concave mirror is used a reflector in a torch light?
Answer:
Below:
Explanation:
A concave mirror is used as a torch reflector. ... When a light bulb is placed at the focus of a concave mirror reflector, the diverging light rays of the bulb are collected by the reflector. These rays are then reflected to produce a strong, parallel-sided beam of light.
Hope it helps...
It's Miss-Muska
Alana is skateboarding at 19 km/h and throws a tennis ball at 11 km/h to her friend Oliver who is behind her leaning against a wall. What is the speed of the tennis ball if someone was watching the exchange on the sidewalk? 8 km/hr 11 km/hr 15 km/hr 30 km/hr.
The speed of the tennis ball is 8 km/h when Alana throws the ball behind at the speed of 11 km/h.
What is the frame of reference?It is a point from where the motion is observed. The speed changes with the frame of reference.
For the person standstill on the sidewalk, If Alana throw the ball in the front direction, The speed will be,
19+11 = 30 km/h
It Alana just leave the ball, the speed,
19 +0 = 19 km/h
If Alana throws the ball behind her at the speed of 19 km/h. The speed of the ball for a sidewalk observer,
19 +(-19 ) = 0 km/h
Thus, when Aana throw the ball behind the velocity will be negative,
So,
19 + (-11 ) = 8 km/h
Therefore, the speed of the tennis ball is 8 km/h when Alana throws the ball behind at the speed of 11 km/h.
Learn more about Frame of reference:
https://brainly.com/question/9820962
Answer:
8km/hrExplanation:
edge 2022
What must two objects have in order for gravitational force to act on them?.
Answer:
Gravity and mass.
Explanation:
Gravity is a force of attraction between two objects that depends on two things: mass and distance. Mass: The greater the mass of two objects, the greater the gravitational force between the objects.
