19) A navy cargo plane drops drops bundles of shelters and mosquito nets onto a field in rural
Kenya. It is moving with a constant horizontal speed at an elevated height. Assuming that air
resistance is negligible, where will the packages land relative to the plane?
A) directly below the plane
B) below the plane and behind it.
C) below the plane and ahead of it
D) below the plane and both behind and ahead of it

When the resultant force is not equal to zero termed an unbalanced force. By procedures 4 and 5 students observe an unbalanced upward force on Box 1. Hence option 1 is right for the problem.

The forces operating on a body are known as unbalanced forces when the resulting force exerted on it is not equal to zero.

Unbalanced forces acting on the body, causing it to modify its state of motion. To further grasp the nature of imbalanced forces.

The following reasons by which we can understand the unbalanced force caused by the box.

Due to these two reasons, books will move up.

By adding another mass to box 2. The box becomes lighter. As the box becomes lighter the gravity force acting on the box will be less due to which the box easily can move up.

By removing the two masses from box 1. Due to which other become heavier other becomes heavier pulling it down causing box 1 one to go up.

Hence by procedures 4 and 5 students observe an unbalanced upward force on Box 1. Hence option 1 is right for the problem.

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Hi there!

The equation for the electric field of a point charge is given by:

[tex]E = \frac{kq}{r^2}[/tex]

E = Electric Field (N/C)
k = Coulomb's Constant

r = distance (m)

We can rearrange to solve for 'q':'

[tex]q^2 = \frac{Er^2}{k}\\\\q = \sqrt{\frac{Er^2}{k}}[/tex]

Plug in the values and solve:

[tex]q = \sqrt{\frac{(1236)(4^2)}{(8.99*10^9)}} = \boxed{0.00148 C}[/tex]

Answer:

less

Explanation:

weight = mass * acceleration due to gravity----(1)

the acceleration due to gravity on Mars is less than on earth. From equation (1 )we can say that weight in Mars is less than earth.

Answer:

angular acceleration = change in angular speed / change in time

angular acceleration = 10 rad/s - 6.3 rad/s / 5s

angular acceleration = 3.7 rad/s / 5s

angular acceleration = 0.74 rad/s^2

The expression for the charge on the capacitor as a function of time  is [tex]q(t) = q_0e^{-\frac{t}{RC} }[/tex].

Q = It

lnQ = -t/RC

ln(q - q₀) = -t/RC

[tex]q-q_o = e^{-\frac{t}{RC} }\\\\q = q_0e^{-\frac{t}{RC} }\\\\q(t) = q_0e^{-\frac{t}{RC} }[/tex]

where;

Thus, the expression for the charge on the capacitor as a function of time  is [tex]q(t) = q_0e^{-\frac{t}{RC} }[/tex].

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Savings account is where she can have access to her money anytime in case of an emergency.

This is a type of account run by a financial institution which yields interests on deposits made.

This type of account usually comes with features in which the money can be withdrawn via an ATM card or by visiting the bank to collect it. This therefore makes it the most appropriate choice for Analisa.

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Apply third equation of kinematics

[tex]\\ \rm\hookrightarrow v^2-u^2=2as[/tex]

Isolate the equation for a

[tex]\\ \rm\hookrightarrow a=\dfrac{v^2-u^2}{2s}[/tex]

[tex]\\ \rm\hookrightarrow a=\dfrac{v^2}{2s}[/tex]

[tex]\\ \rm\hookrightarrow a=120^2/800[/tex]

[tex]\\ \rm\hookrightarrow a=18m/s^2[/tex]

Answer:ultrasound

Explanation:

Let's check the relationship

[tex]\\ \rm\hookrightarrow g=\dfrac{GM}{r^2}[/tex]

[tex]\\ \rm\hookrightarrow g\propto G[/tex]

So

Option C is wrong by now .Let's check D once

[tex]\\ \rm\hookrightarrow T\propto \dfrac{1}{\sqrt{g}}[/tex]

Answer:

false

Explanation:

The new cross sectional area and tensile stress is mathematically given as

A=4.8*10^{-4}m^2

X=14:100

Question Parameters:

To see why this must be so, recall, that the stress on the femur for a man standing on one leg is 1.4%

we scale this man up by a factor of 10 in all dimensions

that a 70 kg person has a femur with a cross-section area

a)

Generally the New cross sectional area  is mathematically given as

100A=100*4.8*10^{-4}

A=4.8*10^{-4}m^2

b)

From the initial statement we see that  the fraction of the tensile strength is the stress on the femur  and will be

[tex]X=\frac{14}{100}[/tex]

X=14$

X=14:100

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Complete Question

Larger animals have sturdier bones than smaller animals. A mouse's skeleton is only a few percent of its body weight, compared to 16% for an elephant. To see why this must be so, recall, that the stress on the femur for a man standing on one leg is 1.4% of the bone's tensile strength. Suppose we scale this man up by a factor of 10 in all dimensions, keeping the same body proportions. (Assume that a 70 kg person has a femur with a cross-section area (of the cortical bone) of 4.8 x 10-4m², a typical value.)

Part A

Both the inside and outside diameter of the femur, the region of cortical bone, will increase by a factor of 10. What will be the new cross-section area? Express your answer using two significant figures.

Part B

If the scaled-up man now stands on one leg, what fraction of the tensile strength is the stress on the femur?

For the following statements

A) The motor speed is less than wheel speed.

B) The output power of the motor is positive during hill climbing.

C) The wheel torque is more than motor torque

These assertions are given respectively as

Speed: defined as the ratio of operation with respect to distance and time

Power: defined as the ability to work

Torque: This is the speed of a rotating object

Generally, the equation for Speed, Power, Torque  is mathematically given as

V=m/s

P=w/t

T=rfsin\theta

In conclusion

For a moving car, the wheels speed is in equilibrium with the motor speed Hence false

The output power during a hill climb is is positive cause work is been done

Hence true

The wheel torque also is in equilibrium with the motor Torque Hence false

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Apply second equation of kinematics

[tex]\\ \rm\hookrightarrow s=ut+\dfrac{1}{2}gt^2[/tex]

[tex]\\ \rm\hookrightarrow s=1/2(10)(3)^2[/tex]

[tex]\\ \rm\hookrightarrow s=5(9)[/tex]

[tex]\\ \rm\hookrightarrow s=45m[/tex]

It rises 45m

Explanation:

Answer:

when the kinetic energy of a particle decreases, according to me that body must have been freeze, like water particles or intermolecular force which losses when heated (gains more kinetic energy) and when freeze losses kinetic energy.

Answer:

Explanation:

What is a free body diagram?

Answer: a force diagram is a graphical illustration used to visualize the applied forces and resulting reactions on a body in a given condition

Drawing a free-body diagram for this problem

Answer: Look at the attached picture, ask me any questions if you are still confused. It is a little messy since I didn't have my pen.

Find its weight on Earth

Answer: The weight is dependent on the mass of the object and the gravitational constant on the planet. The gravitational constant, in this case, is 9.8.

   so the weight = mass * gravitational constant = m * g = 1000 * 9.8

                          = 9800 N

Hope that helps!

At the moment when the movement stops, the lighter object has zero kinetic energy and maximum potential energy while the heavier object has maximum kinetic energy and zero potential energy.

The principle of conservation of mechanical energy states that the total mechanical energy of isolated system is always constant.

M.A = P.E + K.E

where;

Therefore, at the moment when the movement stops, the lighter object has zero kinetic energy and maximum potential energy while the heavier object has maximum kinetic energy and zero potential energy.

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Answer:

Strong electrolytes have a better tendency to supply ions to the aqueous solution than weak electrolytes.

Explanation:

Answer:D) It cannot be determined without more information,

Explanation:

Answer:

a magnet and sifter

Explanation:

a magnet will get all the iron filling and the sifter will separate the powder and sand

Answer:

electrons

Explanation:

Electric fields are usually created when electrons are transferred between objects?

explanation

we take distance covered divided by speed

=3/8

=0.375h

=22min

time =8.00+0.22

=8.22am

Answer: 86.4J

Explanation: EPE = 1/2kx^2

x=0.12, k=12000

.5(.12^2)(12000) = 86.4J

Answer:

No, when water converts to steam on heating, the temperature remains constant at the boiling point and the heat supplied to the water is used for the vaporisation of water, rather than increasing the temperature of water.

This energy used for the vaporisation is termed as the latent heat of vaporisation.

You’ll find similar observations if you try heating ice - the temperature remains at 0∘ Celsius. Here, it’s the latent heat of fusion.

Answer:

D. Central

Explanation:

Answer:

If one assumes that F will just start the object to move:

F = μ Wa cos θ      where θ is the angle of the applied force

                              and Wa is the apparent weight of the object

μ = F / (Wa cos θ)

Note that Wa = W - F sin θ     true weight less component of applied force

Wa = 3000 - 2000 sin 60 = 1268 N  

μ = 2000 / (1/2 * 1268) = 3.15     (seems to be very large, usually < 1)

Answer:

A. 0.000694 RPM

B. 463 m/s

Explanation:

Answer:

The Answer Choice is C , Gravity Pulls the Balloon down

Answer:

B. may be

Explanation:

Gravity is greater than the string

pulling force.

SORRY IF MY ANSWER NEED ANY.