##### Calculate the initial thrust force of the blast?

A rocket with a lift-off mass of 20,000 kg is blasted upwards with an initial acceleration of $$5.0 ms^{-2}$$. Calculate the initial thrust (force) of the blast.

In: Physics

##### What is the magnitude of the magnetic moment of the magnet?

A short bar magnet placed with its axis at 30° with a uniform external magnetic field of 0.25 T experiences a torque of magnitude equal to $$4.5\times 10^{-2}\; J$$. What is the magnitude of the magnetic moment of the magnet?

In: Physics

##### What is the average retarding force on the vehicle?

The driver of a three-wheeler moving at a speed of 36 km/h sees a child standing in the middle of the road and brings his vehicle to rest in 4.0 s just in time to save the child. What is the average retarding force on the vehicle? The mass of the three-wheeler is 400 kg, and the mass of the driver is 65 kg.

In: Physics

##### What is the magnitude of the magnetic field B at the centre of the coil?

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

In: Physics

##### Current Electricity

Three resistors 1 Ω, 2 Ω, and 3 Ω are combined in series.

a) What is the total resistance of the combination?

b) If the combination is connected to a battery of emf 12 V and negligible internal resistance, obtain the potential drop across each resistor.

In: Physics

##### What is the terminal voltage of the battery when the circuit is closed?

A battery of EMF 10 V and internal resistance 3 Ω is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?

In: Physics

##### Electromagnetic Induction

We are rotating a 2 m long metallic rod with an angular frequency of 200 rad/s with an axis normal to the rod passing through its one end. And on to the other end of the rod, it is connected with a circular metallic ring. There exist a uniform magnetic field of 1.5 T which is parallel to the axis everywhere. Find out the emf induced between the centre and the ring?

In: Physics

##### What is Hadley Co.'s inventory turnover?

The following information was taken from the income statement of Hadley Co.:

In: Accounting

##### If money market rates average four percent during the year, the additional annual income (loss) from using the lockbox service would be:

A company has daily cash receipts of $150,000. The treasurer of the company has investigated a lockbox service whereby the bank that offers this service will reduce the company's collection time by four days at a monthly fee of$2,500. If money market rates average four percent during the year, the additional annual income (loss) from using the lockbox service would be:

In: Accounting

##### A geyser is a hot spring in which water occasionally boils, sending a tall column of water and steam into the air. A temperature sensor is used to monitor the temperature near the geyser. The data from the sensor is sent to a microprocessor.

A geyser is a hot spring in which water occasionally boils, sending a tall column of water and steam into the air. A temperature sensor is used to monitor the temperature near the geyser. The data from the sensor is sent to a microprocessor

Explain why the data from the sensor has to be changed before it is read by the microprocessor.

Describe three advantages of using sensors and microprocessors to monitor the temperature in geysers rather than using manual methods.

In: Computer Science

##### Discuss how we can make Karachi be a smart city.

A smart city is a designation given to a city that incorporates information and communication technologies (ICT) to enhance the quality and performance of urban services such as energy, transportation, and utilities to reduce resource consumption, wastage, and overall costs. The overarching aim of a smart city is to enhance the quality of living for its citizens through smart technology

In: Computer Science

##### How much cash flow BEFORE tax and interest is necessary to support a project that requires $4 million annually for equity investors and$2 million annually in interest payments if the firm's tax rate is 35%?

How much cash flow BEFORE tax and interest is necessary to support a project that requires $4 million annually for equity investors and$2 million annually in interest payments if the firm's tax rate is 35%?

A. $7.40 million B.$8.10 million

C. $8.15 million D.$8.85 million

In: Accounting

##### If equity investors require a 20% rate of return, what is the maximum acceptable amount of equity financing for a project with $2 million annual cash flows before tax and interest,$3 million in debt with a 10% coupon, and a 35% tax rate?

If equity investors require a 20% rate of return, what is the maximum acceptable amount of equity financing for a project with $2 million annual cash flows before tax and interest,$3 million in debt with a 10% coupon, and a 35% tax rate?

A. $5.53 million B.$5.87 million

C. $8.5 million D.$9.03 million

In: Accounting