Get college assignment help at Smashing Essays Radio amateurs are permitted to communicate on the “10-meter band.” What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 × 108 m/s.

## A 5.40 cm diameter wire coil is initially oriented so that

A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. What is the average induced emf in the coil?

## A 1490-N uniform beam is attached to a vertical wall at

A 1490-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find the magnitude of the tension in the wire

## If the ball has a mass of 4.1 kg and is

If the ball has a mass of 4.1 kg and is released from a height of 119 cm above its final resting height, find the amount of additional thermal energy that now exists in the air, the ball, the string, and the pivot of the pendulum

## The force of the wind on the sails of a sailboat

The force of the wind on the sails of a sailboat is 300 N north. The water exerts a force of 210 N east. If the boat (including crew) has a mass of 310 kg, what are the magnitude and direction of its acceleration?

## which of two vectors when added will have the largest x

which of two vectors when added will have the largest x component

## The is no diagram only the question that i sent in

The is no diagram only the question that i sent in the attached files from microsoft.

## A barefoot field-goal kicker imparts a speed of 49 m/s to

A barefoot field-goal kicker imparts a speed of 49 m/s to a football initially at rest. If the football has a mass of 0.38 kg and the time of contact with the ball is 0.035 s, what is the force exerted by the ball on the kicker’s foot?

## What is the tension in the rope if the box moves

What is the tension in the rope if the box moves at a steady 9.0 ?

## Determine how many calories of heat must be removed to change

Determine how many calories of heat must be removed to change 100g of vapor at 240°C to solid at 20°C. Consider the following properties of the substance: heat of fusion 300 cal/g, heat of vaporization 600 cal/g, specific heat capacity as a liquid -0.75 cal/g-Co, melting point at 20°C and boiling point of 240°C.

## A father racing his son has 1/3 the kinetic energy of

Get college assignment help at Smashing Essays A father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 2.0 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son?

## Block A in the figure weighs 64.0 N. The coefficient of

Block A in the figure weighs 64.0 N. The coefficient of static friction between the block and the surface on which it rests is 0.250. The weight w is 10.2 N and the system remains at rest. Find the friction force exerted on block A.

## In a certain men’s track and field event, the shotput has

In a certain men’s track and field event, the shotput has a mass of 7.80 kg and is released with a speed of 15.0 m/s at 35.0^circ above the horizontal over a man’s straight left leg.

## Four 1.8 kg masses are located at the corners of a

Four 1.8 kg masses are located at the corners of a square 0.20 m on each side. Find the magnitude and direction of the gravitational force on a fifth 1.8 kg mass placed at the midpoint of the bottom side of the square.

## Vector is 6.7 units long and points along the negative axis.

Vector is 6.7 units long and points along the negative axis. Vector is 8.9 units long and points at 30 to the positive axis.

## A 17.8-kg oodlight in a park is supported at the end

A 17.8-kg oodlight in a park is supported at the end of a horizontal 5.6-kg beam that is hinged to a pole. A cable connected to the beam helps to support the light. (angle = 33.4 degerees) Find (a) the tension in the cable between the beam and the pole and (b) the horizontal and (c) vertical forces exerted on the beam by the pole. Caution: Since the cable is attached to the end of the beam, the tension in the cable between the beam and the pole is not equal to the tension in the cable from which the oodlight is hanging.

## An electric toy with a resistance of 2.55 ohm is operated

An electric toy with a resistance of 2.55 ohm is operated by a 3.60 V battery.Assuming that the battery delivers a steady current for its lifetime of 3.00h , how much charge passed through the toy?

## Question about ampere’s law, please see attachment.

Question about ampere’s law, please see attachment.

## Question about speed of proton in magnetic field, please see attachment.

Question about speed of proton in magnetic field, please see attachment.

## A 3.35 kg steel ball strikes a wall with a speed

A 3.35 kg steel ball strikes a wall with a speed of 10 m/s at an angle of 60 degrees with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.2 s, what is the average force exerted on the ball by the wall

## A 54.0 kg crate rests on a level floor at a

A 54.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.760 and 0.500, respectively.