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2 years ago

As a general rule of thumb, how long should you wait between eating and

Physics

1 answer:

olga55 [171]2 years ago

5 0

Answer.A you should wait 60 minutes so a hour

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Which of the following statements is true?

sweet-ann [11.9K]

Answer:

D. Friction slow down or stop objects in motion.

7 0

2 years ago

You throw a rock upward. The rock is moving upward, but it is slowing down. If we define the ground as the origin, the position

Alecsey [184]

Answer:

positive, positive

You throw a rock upward. The rock is moving upward, but it is slowing down. If we define the ground as the origin, the position of the rock is positive and the velocity of the rock is positive

Explanation:

Given that the ground is defined as the origin.

The position of the rock is positive since the rock is thrown upward, the position also increases with time until it reaches the maximum height. Also, since the rock is thrown upward with the ground as the origin, the velocity of the rock is positive but the velocity reduces with time (change in height per unit time as the rock moves up is positive)

3 0

3 years ago

3) A bird flies toward a tree limb at a 45-degree angle to the ground along a path that is 50 m long landing on the limb. Determ

marin [14]

Answer:

35 m

Explanation:

Given :

The distance of the path from the ground to the tree limb = 50 m

The angle between the path of flight of the bird towards the tree limb and the ground = 45 degrees

Therefore we can determine the height above which the bird perched above the ground by using the rules of the trigonometric ratios as;

We know that ,

$\sin 45^\circ =\frac{\text{perpendicular}}{\text{hypothenus}}$

$\sin 45^\circ =\frac{\text{BC}}{\text{AC}}$

$0.7 =\frac{\text{BC}}{\text{50}}$

$\text{BC }= 0.7 \times 50$

= 35

Therefore, the bird perched on the tree limb at a height of 35 m.

6 0

2 years ago

What is physics and is it related to chemistry?

Dominik [7]

Physics also deals with the basic principles that explain matter and energy, and may study aspects of atomic matter by following concepts derived from the most fundamental principles. Chemistry focuses on how substances interact with each other and with energy (for example heat and light).

4 0

3 years ago

A car with a mass of 600 kg is traveling at a velocity of 10 m/s. How much kinetic energy does it have? The car has J of kinetic

konstantin123 [22]

The kinetic energy of an object is given by:
$K= \frac{1}{2}mv^2$
where m is the mass of the object and v its velocity.

The car in this problem has a mass of m=600 kg and a velocity of v=10 m/s, therefore if we put these numbers into the equation, we find the kinetic energy of the car:
$K= \frac{1}{2}mv^2= \frac{1}{2}(600 kg)(10 m/s)^2=30000 J$

5 0

3 years ago