What is the weight in newtons of lily’s convertible, which has a mass of 1800 kg?

Answer:

Explanation:

We shall represent the velocity of cruise ship and coast guard petrol boat in vector form .

velocity of cruise ship

Vcs = - 2.5 j

Vpb =  - 4.8 cos 19 i + 4.8 sin 19 j = - 4.54 i + 1.56 j

velocity of the cruise ship relative to the patrol boat

= Vcs - Vpb

=  - 2.5 j - ( - 4.54 i + 1.56 j  )

=  - 2.5 j  +  4.54 i -   1.56 j  

= 2.04 i - 1.56 j .

x-component of the velocity of the cruise ship relative to the patrol boat

= 2.04 m /s

y-component of the velocity of the cruise ship relative to the patrol boat

= - 1.56 m /s .

Answer:

3.57

Explanation:

22.2-8.50=13.7                                                                                                                      

13.7/3.84=3.57

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt.

Answer:

750 miles / hour

Explanation:

velocity = distance / time

             = 4500 miles / 6 hours

             = 750 miles / hour

Given:-

To Find: Speed (v) of the particle (airplane).

We know,

s = vt

where,

Similarly,

v = s/t

→ v = (4500 miles)/(6 hours)

→ v = 750 miles/hour ...(Ans.)

Answer:

A. Heat is a form of energy.

Explanation:

The Sun emits heat, which is a form of energy. This heat energy is supplied to the Earth by the sun, when the solar energy is converted to heat energy. The study of heat energy and its conversion from one form to another is a branch of physics called THERMODYNAMICS.

Hence, a physicists will be interested in studying the heat given off by the sun because it is one of the several forms of energy.

Answer:

A. Heat is a form of energy.

Explanation:

Answer:

Eu = 0.65 N/C (Approx)

Explanation:

Given:

Time taken = 10 sec

E-field (Initial)(Ei) = 17 N/C

Find:

E-field (Final)

Assume;

Initial charge = Qi

Initial immersed force (Fi) = QiE

Fi = Qi(17)

After 10 sec

Fu = (26)(Qi)(Eu)

So

Fi = Fu

So,

Qi(17) = (26)(Qi)(Eu)

Eu = 17 / 26

Eu = 0.65 N/C (Approx)

Given :

Initial electric field , [tex]E_i=17\ N/C[/tex] .

The total charge on the object increases by a factor of 22 .

To Find :

The magnitude of the E-field after the total charge has changed .

Solution :

Let , initial charge is q .

Therefore , final charge is 22q .

Electrostatic force F is given by :

[tex]F=qE[/tex]

It is also given that the force remains constant .

Therefore ,

[tex]F_i=F_f\\\\qE_i=22qE_f\\\\E_f=\dfrac{E_i}{22}\\\\E_f=\dfrac{17}{22}\ N/C\\\\E_f=0.78\ N/C[/tex]

Hence , this is the required solution .

Answer:

Angular diameter of Mars = 15.80 * 10^5 arc seconds

The Angular diameter of Mars is 3 times the angular diameter of Jupiter

Explanation:

Average distance of the earth from sun = 150.67 * 10^6 km

assuming the radius of Mars ( average distance from sun) = 209.33 * 10^6 km

assuming the radius of Jupiter(average distance from sun) = 768.71 * 10^6 km

The small-angle formula for mars

angular diameter = ( linear diameter / distance ) * (2.06 * 10^5 )

distance between earth and mars = 54.6 * 10^6 km

linear diameter = 2 * radius = 418.66 * 10^6 km

angular diameter = ( 418.66 / 54.6 ) * 2.06 * 10^5

                             = 15.80 * 10^5 arc seconds

small angel formula for Jupiter

Angular diameter = ( linear diameter / distance ) * (2.06 * 10^5)

distance between Jupiter and earth = 588 * 10^6 km

linear diameter = 2 * radius = 1537.42 * 10^6 km

Angular diameter = ( 1537.42 / 588) * 2.06*10^5

                             = 5.39 * 10^5 arc seconds

comparing the angular diameter of the Mars and that of Jupiter :

The angular diameter of mars / angular diameter of Jupiter

= 15.80 / 5.39 = 2.931 ≈ 3

Answer: C “The force it exerts on its exhaust gases is equal to the force the exhaust gases exert on the rocket.”

Answer:

1. High Illiteracy Rate in a Nation has a Negative Impact on the Conducting of Census

2.Corruption Interferes with Census

3.Traditional and Religious Beliefs can Interfere with the Census Exercise

4.insufficient and Ineffective Census Educational Campaign

5.Insufficient Census Experts

Explanation:

Answer:

a) 0, = -0.33 us

b) 140m

c) No, The event are not simultaneous i.e they did not occur at the same time, the second even (-0.33 usec) occurs 0.33 usec earlier than the first event.

Explanation:

a)

the lorentz factor expression is written as;

y = 1₀ / √(1 - (v²/c²))

where v  is the relative speed of an observer and c is the speed of light

so we were given that relative speed to be o.7c

therefore

y = 1 / √(1 - ((0.7c)² / c²))

y = 1 / √(1 - (0.49c² / c²))

y = 1 / √(1 - 0.49)

y = 1 / 0.7141

y = 1.4

1 - the coordinates  of the first event, the s' frame of reference is,

x1 ' = y(x1 - vt1) = 0

y1 ' = y1, z1' = z1 and

t1 ' = y [t1 - v/c²x1]

= 0

2 - the coordinates of the second event, the s ' frame of reference is'

x2 ' = y(x2-vt2)

= 1.4(100m - 0)

= 140m

y2 ' = y2, z2 ' = z2

t2 ' = y [ t2 - v/c²x2 ]

= 1.4 [ 0 - 0.7c/c²(100) ]

using speed of light c as 3*10^8

1.4 [ 0 - (0.7*3*10^8) / (3*10^8)²(100) ]

= -0.33 us

b)

distance between

delltaX' = X2' - X1'

= 140m - 0

= 140m

c)

No, The event are not simultaneous i.e they did not occur at the same time.

the second even (-0.33 us) occurs 0.33 us earlier than the first event.

Answer:

question, report, observe, research, draw conclusions, hypothesize, test hypothesis, experiment

Explanation:

Answer:

False

Explanation:

It would be a screw

Answer:

Explanation:

The velocity of the wrench must be equal to the velocity of the truck . So momentum of the wrench before it hits the wall

= mv = 6 x 13.3 = 79.8 kg m /s

If resisting force of wall be F , impulse on the wrench = F x time

= F x .07

Impulse = change in momentum of the wrench = mv - 0 = mv = 79.8 kgm/s

So F x .07 = 79.8

F = 1140 N .

Answer:

the trajectory for the missile [tex]\mathbf{r(t) = \langle1000t,1400t, 368t -16t^2 \rangle}[/tex]

the downrange of the missile R =  39570.6973 ft

Explanation:

Suppose the initial velocity v(0) = <1000, 1400, 368 > ft/sec

The single force which is acting over the missle is the gravitational force.

a (t) = <0, 0, -32>  ft/sec²

We are to  determine the trajectory and the downrange for the missle

Consider the motion  of a given object r(t) to be:

[tex]r(t) = v_it + \dfrac{1}{2}at^2[/tex]

[tex]r(t) = \langle1000,1400,368 \rangle t + \dfrac{1}{2} \langle 0,0, -32\rangle t^2[/tex]

[tex]r(t) = \langle1000t,1400t,368t \rangle + \langle 0,0, -16 t^2 \rangle[/tex]

[tex]r(t) = \langle1000t,1400t, 368t -16t^2 \rangle[/tex]

Thus, the trajectory for the missile [tex]\mathbf{r(t) = \langle1000t,1400t, 368t -16t^2 \rangle}[/tex]

To determine the downrange of the missile,

[tex]v(0) = \langle 1000,1400,368 \rangle[/tex]

where;

the horizontal vel. of the missle [tex]v_h= \sqrt{1000^2+1400^2}[/tex]

= 1720.4651 ft/s

the vertical vel. of the missile is [tex]v_v = 368 \ ft/s[/tex]

The time required to reach the ground [tex]t =\dfrac{2 \times v_v}{g}[/tex]

[tex]t =\dfrac{2 \times 368}{32}[/tex]

t = 23 sec

Finally, the downrange of the missile [tex]R = v_h \times t[/tex]

R = 1720.4651  × 23

R = 39570.6973 ft

The trajectory of the missile as a function of time is obtained as

[tex]r(t)= <100t, 1400t, 368t-16t^2>[/tex].

Given that the initial velocity is;

[tex]v(0) = <1000, 1400, 368>\,ft/sec[/tex]

The acceleration of the missile is provided by the gravitational force.

[tex]a = g = <0, 0, -32>\,ft/sec^2[/tex]

The trajectory of the object at time 't' is given by;

[tex]r(t)=v(0)\,t+\frac{1}{2} at^2= <100, 1400, 368>t\,+\frac{1}{2} <0, 0, -32>t^2[/tex]

[tex]\implies r(t)= <100t, 1400t, 368t-16t^2>[/tex]

Learn more about projectile motion here:

https://brainly.com/question/24888457

Answer:

The answer is 6, because 2×y is equal to 12.

Answer:

18.8m

Explanation:

This implies calculating the relative speed first then find the distance d

So

relative speed = 2.75- 1.25 = 1.5 m/s

So assume the distance between them to be say d

so, d/1.5= 12.5

d = 18.8m

Answer:

152.

Explanation:

2 x 76 = 152

bruh its not that hard

Answer:

152 m

Explanation:

Distance = Speed x Time

[tex]2 \times 76 \\ 152[/tex]

Thus the distance is equal to 152 m.

Answer:

B

Explanation:

EDGE 2020

The rod photoreceptor cell type, which is found in the retina, transmits low-light vision and is primarily in charge of the neural transmission of night vision. Thus, option B  is correct.

We can see at night thanks to rods, and we can see color during the day thanks to cones. Although daylight vision is far more important for us, the topic of why there are roughly 20 times more rods than cones in a human retina has typically been met with a shrug.

Rods function in extremely dim lighting. Because just some light particles (photons) may trigger a rod, we employ these for night vision. Because rods hinder color vision, we experience a grayscale world at night. More than 100 million rod cells make up the human eye.

Therefore, The retina's rod photoreceptor cell type conveys vision in low light and is principally in charge of the neuronal activity of night vision.

Learn more about vision here:

https://brainly.com/question/7464210

#SPJ3

Answer:

The concentrations of the reactants and the products. The temperature of the system. The partial pressures of the gases involved (if any)

Explanation:

Answer:

144.63 mph

Explanation:

225 sin (40)

Answer:Newton’s law also states that larger bodies with heavier masses exert more gravitational pull, which is why those who walked on the much smaller moon experienced a sense of weightlessness, as it had a smaller gravitational pull. To help explain his theories of gravity and motion, Newton helped create a new, specialized form of mathematics.

Explanation: I think I'm very stupid

Answer:

19.21 m/s^2

Explanation:

Given that a model airplane is flying North with a velocity of 15 m/s. A strong wind is blowing East at 12 m/s.

The resultant velocity can be calculated by using pythagorean theorem.

Velocity = sqrt( 15^2 + 12^2 )

Velocity = sqrt ( 225 + 144 )

Velocity = sqrt ( 369 )

Velocity = 19.21 m/s^2

Therefore, the plane will be travelling at velocity of 19.21 m/s^2

Answer:

Explanation:

The electric charges are placed on a line .

1 a )      q1= +1 nC       q2= -1 nC         q3= -1 nC

here q₁ will be attracted by both q₂ and q₃ so net force on q₁ will be positive

2 a )      q1= -1 nC       q2= +1 nC         q3= + 1 nC

here q₁ will be attracted by both q₂ and q₃ so net force on q₁ will be positive

3 a )      q1= +1 nC       q2= +1 nC         q3= + 1 nC

here q₁ will be repelled  by both q₂ and q₃ so net force on q₁ will be negative.

4 a )      q1= +1 nC       q2= +1 nC         q3= - 1 nC

q2 will repel and q3 will attract so net force will be towards left but it will be weakened .

5 a )      q1= -1 nC       q2= -1 nC         q3= - 1 nC

Both q₁ and q₂ will repel so net force will be towards left and negative .

6 a )      q1= +1 nC       q2= -1 nC         q3= + 1 nC

q2 will attract and q3 will repel   so net force will be towards right  but it will be weakened . It will be positive .

Largest positive force to lowest positive force

2  a ) = 1 a ) >  6 a )

Largest negative  force to lowest positive force

5a )= 3 a ) > 4a )

Answer: 4.7× 10-8 gigameter.

Exgiga meter. Hope this helps :)

Answer:

Explanation:

One of the major differences between nuclear reactions and chemical reactions is that nuclear reactions involve larger amount of energy than chemical energy. This is because the force between the protons and neutrons in the nucleus of an atom is much higher than the force of attraction between electrons and the positively charged nucleus, hence nuclear reactions involves/requires a larger amount of energy (because it's reactions involve the nucleus) than chemical reactions (because it's reactions involve the electrons).

Thus, during nuclear fusion, two light nuclei are bombarded against one another to produce a larger/heavier nuclei with the release of large amount of energy (because the forces between the protons and neutrons are much higher) unlike when two atoms/molecules are chemically combined together to form a new molecule with the rearrangement of electrons in the valence shells of the participating molecules.

Explanation:

(a)

F = (GM1M2)/r²

F = (6.7 X 10^-11 x 30.3 x 40.17)/0.5²

F = 326.197 x 10^-⁹N

(b)

F =750N

G = 6.7 x 10^-11

M1 = 2050kg

r = 70.3m

M2 = ?

F = (GM1M2)/r²

F x r² = GM1M2

(F x r²)/GM1 = M2

M2 = (750 x 70.3²)/(6.7 x 10^-11 x 2050)

M2 = 26.99kg

Answer:

Yes.

Explanation:

If a star is moving away from earth, it's color will shift to in the visible spectrum will turn to Red.

Answer:

In order to make a sound wave have a higher pitch you increase the frequency.

In order to increase the volume of a sound wave, you have to increase the amplitude.

Hope this helps!

Answer:

The SI units of the “A” is m (meters)

The SI units of the “B” is m/s^2

Explanation:

Given the distance = d meters.

Time taken to travel = t (seconds)

Function of the distance, d = A + Bt^2

Now we have given the above information and from the given distance function, we have to find the SI units of the A and B. Here, below are the SI units.

Thus, the SI units of the “A” is = m (meters)

The SI units of the “B” is = m/s^2

Answer:

v = (1500/10) = 150 [miles/h]

Explanation:

The velocity can be easily calculated using the following kinematics expression:

v = x/t

where:

v = velocity [miles/h]

t = time = 10 [hr]

x = distance = 1500 [miles]

v = (1500/10) = 150 [miles/h]