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2 years ago

Fill in the blanks. If an object changes speed of , its velocity also changes. Any change in _results in acceleration.

1 answer:

7 0

If an object changes the speed of direction, its velocity also changes. Any change in velocity results in acceleration.

Hope that helps!

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Hydrogen is found as a gas on Earth but exists in all four states in the solar

aleksklad [387]

Answer:the sample of solid has less energy than the sample of gas

Explanation:

Apex

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3 years ago

An anchor with a density of 700 lb/ft3 tied to a rope is submerged in water (but is not touching the bottom). It has a volume of

Ivanshal [37]

Answer:

Explanation:

Given

Density of anchor $\rho _a=700\ lb/ft^3$

Volume of anchor $V=2.8\ ft^3$

Density of water $\rho _w=62.4\ lb\ft^3$

Buoyancy force on submerged object is given by

$F_B=\rho _W\times V\times g$

$F_B=62.4\times 2.8\times 32.2=5625.98\approx 5626\ approx lbf$

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3 years ago

What happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage

hichkok12 [17]

Answer and Explanation:

The charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.

Normally, the charge on such spherical surface stay on this surface uniformly, but the presence of a voltage source tampers with that dynamic.

8 0

3 years ago

An ice skater applies a horizontal force to a 150 N block on frictionless, level ice, causing the block to accelerate uniformly

Molodets [167]

Answer:

The friction force has a magnitude of 54 N and points to the left

Explanation:

Friction Force

When an object is moving and encounters friction in the air or rough surfaces, it loses acceleration because the friction force opposes motion.

The friction force when an object is moving on a horizontal surface is calculated by:

$Fr=\mu N$

Where \mu is the coefficient of static or kinetics friction and N is the normal force.

If no forces other then the weight and the normal are acting upon the y-direction, then the weight and the normal are equal in magnitude:

N = W

Thus, the friction force is:

$Fr=\mu W$

The ice skater accelerates a block to the right on frictionless horizontal ice and then stops pushing it. The block continues to move at a constant speed when it finds a sand-covered surface with a kinetic coefficient of friction of 0.36.

The friction force is:

Fr=0.36*150

Fr = 54 N

The friction force has a magnitude of 54 N and points to the left

5 0

3 years ago

Which statement correctly line graph

finlep [7]

Answer:

Explanation:

The X-Axis is always on the left side.

7 0

3 years ago

Fill in the blanks. If an object changes speed of __, its velocity also changes. Any change in ___results in acceleration.

Fill in the blanks. If an object changes speed of , its velocity also changes. Any change in _results in acceleration.