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natulia [17]
3 years ago
12

A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same spee

d. Which of the following has changed?
A. velocity
B. gravity
C. mass
D. speed
Physics
1 answer:
alexandr1967 [171]3 years ago
8 0
Velocity
Because velocity is speed with direction. In this scenario, the speed has not changed, but the direction did.
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In boxing, the use of 16-ounce gloves rather than 12-ounce gloves reduces the chance of injury because the force is distributed
mr Goodwill [35]

Answer:

true

Explanation:

Here we have assumed that increasing the mass of a glove will increase the surface area.

Injury is caused by the application of pressure at a point on the body. The application of pressure takes place via the area of the gloves. Pressure is given by

P=\dfrac{F}{A}

where

F = Force

A = Area to which the force is applied

So, a bigger glove will increase the surface area and reduce the pressure resulting in a lower chance of injury.

Hence, the statement is true.

5 0
3 years ago
Does the boat hold more weight in the regular water or the salt mixture
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6 0
3 years ago
Can a object have have zero velocity and nonzero acceleration?
vladimir1956 [14]

Answer:

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Explanation:

3 0
3 years ago
A high powered rifle can shoot a bullet at a speed of 1500 mi/hr. On the moon, with almost no atmosphere and an acceleration due
Amiraneli [1.4K]

Answer:

Explanation:

On the Moon :----

1500 x 1.6 = 2400 m /s is initial velocity of bullet .

g = 1.6 m /s²

v = u - gt

0 = 2400 - 1.6 t

t = 1500 s

This is time of ascent

Time of decent will also be the same

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On the Earth : ---

v = u - a₁ t

0 = u - a₁ x 18

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v² = u² - 2 x a₁ x 2743.2

0 = (18a₁ )² - 2 x a₁ x 2743.2

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For downward return

s = ut + 1/2 a₂ x t²

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a₂ = 5.7 m /s²

If d be the deceleration produced by air

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g - d = 5.7

g = (16.93 + 5.7) / 2  

= 11.315 m / s

d = 5.6 m /s²

So air is creating a deceleration of 5.6 m /s².

6 0
3 years ago
What kind of energy is stored in a flashlight battery enabling it to function? electrical energy, chemical energy, mechanical en
Lady bird [3.3K]
Electrical Energy because the electrons in the battery travel from out one end of the battery through a circuit and back to the other end
3 0
3 years ago
Read 2 more answers
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