All categories

3 years ago

PLZ HELP How would you explain the difference in mass and gravity?

1 answer:

7 0

Mass is a measure of how much matter an object contains, and weight is a measure of the force of gravity acting on the object.

You might be interested in

Which phrase describes how Jupiter and Saturn are similar?

Readme [11.4K]

Answer:

Many Moons

Explanation:

5 0

3 years ago

Read 2 more answers

A block is balanced on top of a frictionless sphere of radius R. When the block is given a slight nudge it starts to slide down

Nataly_w [17]

Answer: $\frac{R}{3}$

Explanation:

Given

Sphere of Radius R

Suppose mass of block is m

At any instant \theta Normal reaction(N) and weight(mg) is acting such that

$mg\sin \theta -N=\frac{mv^2}{R}$ , where v is velocity of block at any angle \theta

When block is just about to leave then N=0

therefore

$mg\sin \theta =\frac{mv^2}{R}$

$v^2=gR\sin \theta$ -------------------1

Also by conserving Energy we get

Potential Energy=kinetic Energy of block

$mgh=\frac{mv^2}{2}$

here h=vertical distance traveled by block

From diagram

$h=R-R\sin \theta$

$h=R(1-\sin \theta )$

$mgR(1-\sin \theta )=\frac{mv^2}{2}$

$2gR(1-\sin \theta )=v^2$ -----------------2

From 1 and 2

$2(1-\sin \theta )=\sin \theta$

$3\sin \theta =2$

$\sin \theta =\frac{2}{3}$

Thus from this value of h is

$h=R(1-\sin \theta )$

$h=R(1-\frac{2}{3})$

$h=\frac{R}{3}$

3 0

4 years ago

Your mobile charger is an example of a.transformer b.solenoid c.motor. d.generator

lianna [129]

Answer:

Your mobile charger is an example of (d.) a generator.

Explanation:

Your mobile charger generates energy to charge your device.

5 0

3 years ago

Read 2 more answers

Overload refers to: A. Performing a weight-lifting exercise with the resistance (load) held overhead B. Using a demand (load) ab

andrey2020 [161]

Answer:

E. All of the answers are correct

Explanation:

Overload principle in fitness training is associated with a gradual development of an athlete's abilities by progressively increasing the athlete's load and training.

In order to do this, the athlete's limit must be surpassed albeit gradually at first then picked up later over time.

6 0

3 years ago

Prisms separate (blank) light, such as that from the sun, by wavelength

Natali5045456 [20]

The correct answer that would best complete the given statement above would be the term WHITE. Prisms separate WHITE light, such as that from the Sun, ...

4 0

3 years ago

Read 2 more answers