2 years ago

Reactants → products

Physics

2 answers:

Nat2105 [25]2 years ago

4 0

The answer is A

Explanation: the conservation of matter means that the mass stays the same

Morgarella [4.7K]2 years ago

4 0

Answer:

The mass of the reactants equals the mass of the products.

Explanation:

This is essentially restating the Law of Conservation of Matter.

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In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.60 m/s relative to the ground. A teamma

spayn [35]

Answer:

Part a)

$v_{bj} = 11.03 m/s$

Part b)

$\theta = 4.57 degree$ East of South

Explanation:

Part a)

Velocity of Juan is given as

$v_1 = 7.60 m/s \hat j$

velocity of the ball is given as

$v_2 = 12.9(cos31.4 \hat i + sin31.4\hat j)$

now we have

$v_2 = 11\hat i + 6.72\hat j$

Part a)

We need to find velocity of ball with respect to Juan

so it is given as

$v_{bJ} = \vec v_b - \vec v_j$

$v_{bj} = 11\hat i + 6.72 \hat j - 7.6\hat j$

$v_{bj} = 11\hat i - 0.88\hat j$

magnitude of the speed is given as

$v_{bj} = \sqrt{11^2 + 0.88^2}$

$v_{bj} = 11.03 m/s$

Part b)

direction of velocity of the ball

$tan\theta = \frac{v_y}{v_x}$

$tan\theta = \frac{-0.88}{11}$

$\theta = 4.57 degree$ East of South

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2 years ago

If the period of a pendulum were 2.4 s on the moon, which has an acceleration due to gravity of 1.67 m/s^2, then how long would

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<h2>Reffer the attachment </h2>

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Which of the following statements about inductors are correct? A. When an inductor and a resistor are connected in series with

vladimir2022 [97]

Answer: A,C,D,E are correct statements of an inductor

A. When an inductor and a resistor are connected in series with a DC battery, the current in the circuit is reduced to zero in one time constant.

C. An inductor always resists any change in the current through it.

D. When it is connected in a circuit, an inductor always resists having current flow through it.

E. Inductors store energy by building up charge.

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3 years ago

Assuming the density of the wine to be 1.0 g/ml, what caloric content does the alcohol (ethanol) in a 6-oz glass of wine (177 ml

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3 years ago

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A 4.6 kilogram block of ice would absorb how much energy

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Answer: 45 joules of energy

Explanation:

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