All categories

3 years ago

1. This image shows the various forces acting on a block of rock situated on a rock slope. What does arrow 4 represent?

Physics

2 answers:

Gelneren [198K]3 years ago

8 0

Answer:

B. Gravitational force

Explanation:

The gravitational force of an object (also called weight) is given by

$F=mg$

where m is the mass of the object and g is the acceleration of gravity, and it always points in the downward direction.

In this problem, the arrow labelled with 4 is the only force pointing downward: therefore, it must be the gravitational force.

The other arrows represent:

1 --> component of the gravitational force parallel to the plane

2 --> force of friction

3 --> component of the gravitational force perpendicular to the plane

Murrr4er [49]3 years ago

5 0

Answer:

Gravitational force

Explanation:

You might be interested in

PLZ HELP

ololo11 [35]

Potential energy= mass x gravity x height

m=25
g=9.8(on earth)
h=50

Ep= 25(9.8)(50)
Ep=12250 Joules

8 0

3 years ago

Le Which describes how light waves can interact with wood?

DanielleElmas [232]

Answer:

Explanation:

cas i know

3 0

3 years ago

A (an) __helps lessen the effects of thermal pollution

Hunter-Best [27]

Explanation:

The following measures can be taken to prevent or control high temperature caused by thermal pollution:

1. Heated water from the industries can treated before discharging directly to the water bodies.

2. Heated water from the industries can be treated by the installation of cooling ponds and cooling towers.

3. Industrial treated water can be recycled for domestic use or industrial heating.

4. Through artificial lakes: In this lake Industries can discharge their used or heated water at one end and water for cooling purposes may be withdrawn from the other end. The heat is eventually dissipated through evaporation.

4 0

3 years ago

Read 2 more answers

What is conflict resolution?

enot [183]

Conflict resolution is conceptualized as the methods and processes involved in facilitating the peaceful ending of conflict and retribution.

7 0

3 years ago

You hold a ruler that has a charge on its tip 6 cm above a small piece of tissue paper to see if it can be picked up. The ruler

scZoUnD [109]

Answer:

q=1.4*10^{-9}C

Explanation:

Given data:

charge on ruler = -14μC

Mass of tissue is 5 g

To Know the minimum charge, equate electrostatic force to weight

we have F = W

so $\frac{KQq}{r^2} =mg$

putting all value in equation,

$=\frac{9*10^9*(14*10^{-6})*q}{0.06^2} = 5* 10^{-3}*9.8$

solving for q

$q =\frac{5* 10^{-3}*9.8 *0.06^2}{9*10^9*(14*10^{-6})}$

or q=1.4*10^{-9}C

5 0

3 years ago