Ask question

Ask question

All categories

3 years ago

12

Object A moves with a constant velocity of -10 m/s and object B moves with a constant velocity of 5 m/s. Which object has the la

rger speed?

1 answer:

KonstantinChe [14]3 years ago

8 0

Object A has the larger speed because speed is not a vector quantity, it is scalar. This means that directionality, or in this case the sign of the velocity, doesn’t matter.
Speed = |velocity|
Object a speed =|-10|=10 m/s
Object b speed =|5|=5 m/s

Object a is the answer.

You might be interested in

A satellite orbiting the earth is directly over a point on the equator at 12:00 midnight every four days. It is not over that po

Mrrafil [7]

Answer:

106417026.88435 m

Explanation:

T = Time period of the satellite = 4 days

m = Mass of the Earth = 5.972 × 10²⁴ kg

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

Time period is given by

$T=2\pi\sqrt{\dfrac{r^3}{GM}}\\\Rightarrow r=\left(\dfrac{T^2GM}{4\pi ^2}\right)^{\dfrac{1}{3}}\\\Rightarrow r=\left(\dfrac{(4\times 24\times 60\times 60)^2\times 6.67\times 10^{-11}\times 5.972\times 10^{24}}{4\pi ^2}\right)^{\dfrac{1}{3}}\\\Rightarrow r=106417026.88435\ m$

The radius of the satellite's orbit is 106417026.88435 m

5 0

3 years ago

Each statement below represents a feature that has been claimed to exist on Mars. Sort the statements into the correct bin accor

Wittaler [7]

Answer:

Earth’s Moon:

It has no atmosphere due to weak gravity. Venus: It is too hot for liquid water.

Europa:

Is too cold for liquid water Mars: Scientists believe it used have flowing water Europe is a small moon of the planet Jupiter and according to studies, it is confirmed that the moon is too cold to have liquid water.

Venus: Venus is generally known as an extremely hold planet where liquid water would immediately turn into gas.

Mars:

is popularly identified with aliens since several theories talk about a prehistoric alien race that lived on it’s surface.

5 0

4 years ago

What profession is most likely to make use of amphoras and candelas

Monica [59]

Biologists probably

5 0

3 years ago

A tungsten wire has resistance R at 20°C. A second tungsten wire at 20°C has twice the length and half the cross-sectional area

Bad White [126]

The resistance is 4 times the resistance of the first wire. the formula is R = p*l/A with p being resistivity, l length and A area. So if you double length and half area, which botv result in more resistance, you get p*2/0.5 or 4 (p can be abandoned because it is the same. We take standard length and area as 1)

6 0

3 years ago

What universal force is primarily responsible for keeping satellites in orbit around Earth?

g100num [7]

<span>A) electromagnetic force </span>

6 0

3 years ago

Read 2 more answers