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ira
1 month ago
12

How, if at all, would the equations written in Parts C and E change if the projectile was thrown from the cliff at an angle abov

e the horizontal? Explain your answer.
Physics
1 answer:
Keith_Richards [3.2K]1 month ago
7 0

Answer:

x = v₀ cos θ   t,   y = y₀ + v₀ sin θ t - ½ g t2

Explanation:

This pertains to a projectile motion scenario. Here, we will express the equations for both the x and y dimensions.

Now, we will apply trigonometry to determine the initial velocity components.

              sin θ = v_{oy} / v₀

              cos θ = v₀ₓ / v₀

              v_{y} = v_{oy} sin θ

              v₀ₓ = v₀ cos θ

Next, let's formulate the equations of motion.

X axis

         x = v₀ₓ t

         x = v₀ cos θ   t

        vₓ = v₀ cos θ

Y axis

        y = y₀ + v_{oy} t - ½ g t2

        y = y₀ + v₀ sin θ t - ½ g t2

        v_{y} = v₀ - g t

       v_{y} = v₀  sin θ - gt

        v_{y}^{2} = v_{oy}^2 sin² θ - 2 g y

It is evident that the major distinction lies in the fact that in an inclined launch compared to a horizontal one, the velocity comprises different components

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State two advantages of a lead-acid accumulator over a leclanche cell​
kicyunya [3294]

Respuesta:

Se pueden recargar.

Poseen una vida útil mayor.

Son reutilizables.

Explicación:

Las baterías de plomo-ácido y las pilas Leclanché son tipos de células electroquímicas.

Las pilas Leclanché son células primarias. Estas células producen reacciones químicas que generan corriente eléctrica de manera irreversible.

Por su parte, las baterías de plomo-ácido son células secundarias que permiten la reversibilidad de la corriente eléctrica generada.

Esto hace que las baterías de plomo-ácido sean reutilizables, con mayor durabilidad y un tiempo de vida más prolongado.

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3 months ago
James Cameron piloted a submersible craft to the bottom of the Challenger Deep, the deepest point on the ocean's floor, 11,000 m
serg [3582]

Answer:

4.1\cdot 10^8 N

Explanation:

To begin with, we must determine the pressure acting on the sphere, which is calculated using:

p=p_0 + \rho g h

where

p_0 =1.01\cdot 10^5 Pa denotes the atmospheric pressure

\rho = 1000 kg/m^3 represents the density of the water

g=9.8 m/s^2 signifies the acceleration due to gravity

h=11,000 m indicates the depth

By substituting these values,

p=1.01\cdot 10^5 Pa + (1000 kg/m^3)(9.8 m/s^2)(11,000 m)=1.08\cdot 10^8 Pa

The sphere's radius is calculated as r = d/2 = 1.1 m/2 = 0.55 m

Thus, the sphere's total surface area can be expressed as

A=4 \pi r^2 = 4 \pi (0.55 m)^2=3.8 m^2

Consequently, the inward force acting on the sphere equals

F=pA=(1.08\cdot 10^8 Pa)(3.8 m^2)=4.1\cdot 10^8 N

8 0
2 months ago
Read 2 more answers
A conducting sphere 45 cm in diameter carries an excess of charge, and no other charges are present. You measure the potential o
Maru [3345]

Answer:

The excess charge is Q = 3.5 *10^{-7} \ C

Explanation:

According to the question, we are informed that

The diameter is d = 45 \ cm = 0.45 \ m

The potential of the surface is V = 14 \ kV = 14 *10^{3} \ V

The radius of the sphere is

r = \frac{d}{2}

by plugging in given values

r = \frac{0.45}{2}

r = 0.225 \ m

The potential at the surface is mathematically expressed as

V = \frac{k * Q }{r }

Where k is Coulomb's constant with a value k = 9*10^{9} \ kg\cdot m^3\cdot s^{-4} \cdot A^{-2}.

Based on the question stating there are no other charges, Q represents the excess charge

Therefore

Q = \frac{V* r}{ k}

inserting the numerical values

Q = \frac{14 *10^{3} 0.225}{ 9*10^9}

Q = 3.5 *10^{-7} \ C

7 0
1 month ago
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Utiliza Scoratic, funciona con cualquier tema.
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2 months ago
Which of the following equations correctly expresses the relation between vectors A⃗ , B⃗ , C⃗ , and D⃗ shown in the figure?
Sav [3153]
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1 month ago
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